Publication number: 100602414, Rev. F February 2011
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology
LLC in the United States and/or other countries. Constellation ES and SeaTools are either trade
marks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the
United States and/or other countries. The FIPS logo is a certification mark of NIST, which does not
imply product endorsement by NIST, the U.S., or Canadian governments. All other trademarks or
registered trademarks are the property of their respective owners.
No part of this publication may be reproduced in any form without written permission of Seaga te
Technology LLC. Call 877-PUB-TEK1(877-782-8351) to request permission.
One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes.
Your computer's operating system may use a different standard of measurement and report a lower
capacity. In addition, some of the listed capacity is used for formatting and other functions, and thus
will not be available for data storage. Seagate reserves the right to change, without notice, product
offerings or specifications.
Constellation ES Series SAS Product Manual, Rev. Fv
viConstellation ES Series SAS Product Manual, Rev. F
1.0Seagate Technology support services
SEAGATE ONLINE SUPPORT and SERVICES
For information regarding products and services, visit http://www.seagate.com/www/en-us/about/contact_us/
Available services include:
Presales & Technical support
Global Support Services telephone numbers & business hours
Authorized Service Centers
For information regarding Warranty Support, visit
http://www.sea
For information regarding Data Recovery Services, visit http://www.i365.com
For Seagate OEM & Distribution partner portal, visit https://direct.seagate.com/portal/system
For Seagate reseller portal, visit http://spp.seagate.com
Constellation ES Series SAS Product Manual, Rev. F1
2.0Scope
This manual describes Seagate Technology® LLC, Constellation® ES Series SAS (Serial Attached SCSI) disc
drives.
Constellation ES drives support the SAS Protocol specifications to the extent described in this manual. The
SAS Interface Manual (part number 100293071) describes the general SAS characteristics of this and other
Seagate SAS drives. The Self-Encrypt ing Drive Reference Manual, part number 100515636, describes the
interface, general operation, and security features available on Self-Encrypting Drive models.
Note.Previous generations of Seagate Self-Encrypting Drive models were called Full Disk Encryption
(FDE) models before a differentiation between drive-based encryption and other forms of encryp
tion was necessary.
Product data communicated in this manual is specific only to the model numbers listed in this ma nual. The dat a
listed in this manual may not be predictive of future generation specifications or requirements. If you are
designing a system which will use one of the models listed or future generation products and need further
assistance, please contact your Field Applications Engineer (FAE) or our global support services group as
shown in Section 1.0.
Unless otherwise stated, the information in this manual applies to standard and Self-Encrypting Drive models.
Model NumberSelf-Encrypting Drive (SED)FIPS 140-2 Level 2 certified
For more information on FIPS 140-2 Level 2 certification see Section 8.0 on page 41.
2Constellation ES Series SAS Product Manual, Rev. F
3.0Applicable standards and reference documentation
The drives documented in this manual have been developed as system peripherals to the highest standards of
design and construction. The drives depends on host equipment to provide adequate power and environment
for optimum performance and compliance with applicable industry and governmental regulations. Special
attention must be given in the areas o f safety, power distribution, shielding, audible noise control, and temperature regulation. In particular, the drive must be securely mounted to guarantee the specified performance
characteristics. Mounting by bottom holes must meet the requirements of Section 11.3.
3.1Standards
The Constellation ES family complies with Seagate standards as noted in the appropriate sections of th is manual and the Seagate SAS Interface Manual, part number 100293071.
The drives are recognized in accordance with UL 60950-1 as tested by UL, CSA 60950-1 as tested by CSA,
and EN60950-1 as tested by TUV.
The security features of Self-Encrypting Drive models are based on the “TCG Storage Architecture Core Specification” and the “TCG Storage Workgroup Security Subsystem Class: Enterprise_A” specification with additional vendor-unique features as noted in this product manual.
3.1.1Electromagnetic compatibility
The drive, as delivered, is designed for system integration and installation into a suitable enclosure prior to
use. The drive is supplied as a subasse mbly and is not s ubject to Subpart B o f Part 15 of the F CC Rules and
Regulations nor the Radio Interference Reg ula tio ns of the Canadian Department of Communications.
The design characteristics of the drive serve to minimize radiation when installed in an enclosure that provides
reasonable shielding. The drive is capable of meeting the Class B limits of the FCC Rules and Regulations of
the Canadian Department of Communications when properly packaged; however, it is the user’s responsibility
to assure that the drive meets the appropriate EMI requirements in their system. Shielded I/O cables may be
required if the enclosure does not provide adequate shielding. If the I/O cables are external to the enclosure,
shielded cables should be used, with the shields grounded to the enclosure and to the host controller.
3.1.1.1Electromagnetic susceptibility
As a component assembly, the drive is not required to meet any susceptibility performance requirements. It is
the responsibility of those integrating the drive within their systems to perform those tests required and design
their system to ensure that equipment operating in the same system as the drive or external to the system
does not adversely affect the performance of the drive. See Table 2, DC power requirements.
Constellation ES Series SAS Product Manual, Rev. F3
3.1.2Electromagnetic compliance
Seagate uses an independent laboratory to confirm compliance with the directives/standards for CE Marking
and C-Tick Marking. The drive was teste d in a repr esent ative system for typical applications. The selected system represents the most popular characteristics for test platforms. The system configurations include:
• Typical current use microprocessor
• Keyboard
• Monitor/display
• Printer
•Mouse
Although the test system with this Seagate model complies with the directives/standards, we cannot guarantee
that all systems will comply. The computer manufacturer or system integrator shall confirm EMC compliance
and provide the appropriate marking for their product.
Electromagnetic compliance for the European Union
If this model has the CE Marking it complies with the European Union requirements of the Electromagnetic
Compatibility Directive 2004/108/EC as put into place on 20 July 2007.
Australian C-Tick
If this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZ CISPR22 and
meets the Electromagnetic Compatibility (EMC) Framework requirements of Australia’s Spectrum Management Agency (SMA).
Korean KCC
If these drives have the Korean Communications Commission (KCC) logo, they comply with paragraph 1 of
Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic Compatibility
(EMC) Framework requirements of the Radio Research Laboratory (RRL) Communications Commission,
Republic of Korea.
These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic
Susceptibility (EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a
Korean-recognized lab.
• Family name:Constellation ES SAS
• Certificate number:STX-ST32000444SS (B)
• Manufacturing date: 14 September 2009 (Date of Certification)
• Manufacturer/nationality: USA, Singapore and China
Taiwanese BSMI
If this model has two Chinese words meaning “EMC certification” followed by an eight digit identification number, as a Marking, it complies with Chinese National Standard (CNS) 13438 and meets the Electromagnetic
Compatibility (EMC) Framework requirements of the Taiwanese Bureau of Standards, Metrology, and Inspection (BSMI).
4Constellation ES Series SAS Product Manual, Rev. F
3.1.3European Union Restriction of Hazardous Substances (RoHS)
The European Union Restriction of Hazardous Substances (RoHS) Directive, restricts the presence of chemical substances, including Lead, Cadmi um, Mercury, Hexavalent Chromium, PBB and PBDE, in electronic products, effective July 2006. This drive is manufacture d with compone nts and mater ials that comply with the RoHS
Directive.
A number of parts and materials in Seagate products are procured from external suppliers. We rely on the representations of our suppliers regarding the presence of RoHS substances in these parts and materials. Our
supplier contracts require compliance with our che mical substance restrictions, and our suppliers document
their compliance with our requirements by providing material conten t declarations for all p arts and materials for
the disc drives documented in this publication. Current supplier declarations include disclosure of the inclusion
of any RoHS-regulated substance in such parts or materials.
Seagate also has internal systems in place to ensure on going compliance with the RoHS Directive and all laws
and regulations which restrict chemical content in electronic products. These systems include standard operating procedures that ensure that restricted substances are not utilized in our manufacturing operations, laboratory analytical validation testing, and an internal auditing process to ensure that all standard operating
procedures are complied with.
3.2Reference documents
SAS Interface Manual
SCSI Commands Reference Manual
Self-Encrypting Drives Reference Manual
ANSI SAS Documents
ANSI Small Computer System Interface (SCSI) Documents
Trusted Computing Group (TCG) Documents (apply to Self-Encrypting Drive models only)
Specification for Acoustic Test Requirement and Procedures
Seagate part number: 100293071
Seagate part number: 100293068
Seagate part number: 100515636
SFF-83233.5” Drive Form Factor with Serial Connector
SFF-8460HSS Backplane Design Guidelines
SFF-8470Multi Lane Copper Connector
SFF-8482SAS Plug Connector
ANSI INCITS.xxxSerial Attached SCSI (SAS) Standard (T10/1562-D)
ISO/IEC 14776-xxx SCSI Architecture Model-3 (SAM-3) Standard (T10/1561-D)
ISO/IEC 14776-xxx SCSI Primary Commands-3 (SPC-3) Standard (T10/1416-D)
ISO/IEC 14776-xxx SCSI Block Commands-2 (SBC-2) Standard (T10/1417-D)
In case of conflict between this document and any referenced document, this document takes precedence.
Constellation ES Series SAS Product Manual, Rev. F5
4.0General description
Constellation ES drives provide high performance, high ca pa city dat a storage for a variety of systems including
engineering workstations, network servers, mainframes, and supercomputers. The Serial Attached SCSI interface is designed to meet next-generation computing demands for performance, scalability, flexibility and highdensity storage requirements.
Constellation ES drives are random access storage devices designed to support th e Serial Att ached SCSI Protocol as described in the ANSI specifications, this document, and the SAS Interface Manual (part number
100293071) which describes the general interface characteristics of this drive. Constellation ES drives are
classified as intelligent peripherals and provide level 2 conformance (highest level) with the ANSI SCSI-1 standard. The SAS connectors, cables and electrical interface are compatible with Serial ATA (SATA), giving future
users the choice of populating their sy stem s with eith er SAS or SATA hard disc drives. This allows you to continue to leverage your existing investment in SCSI while gaining a 6Gb/s serial data transfer rate.
The Self-Encrypting Drive models indicated on the cover of this product manual have provisions for “Security
of Data at Rest” based on the st andards defined by the Trusted Computing Group (see www.trustedcomputinggroup.org).
The head and disc assembly (HDA) is sealed at the factory. Air recirculates within the HDA through a nonreplaceable filter to maintain a contamination-free HDA environment.
Note.Never disassemble the HDA and do not attempt to service items in the sealed enclosure (heads,
media, actuator, etc.) as this requires special facilities. The drive does not contain user-replaceable
parts. Opening the HDA for any reason voids your warranty.
Constellation ES drives use a dedicated load/unload zone at the outer most radius of the me dia to eliminate the
possibility of destroying or degrading data by landing in the data zone. The heads automatically go to the ramp
load/unload when power is removed from the drive.
An automatic shipping lock prevents potential damage to the heads and discs that results from movement during shipping and handling. The shipping lock disengages and the head load process begins when power is
applied to the drive.
Constellation ES drives decode track 0 location data from the servo data embedded on each surface to eliminate mechanical transducer adjustments and related reliability concerns.
The drives also use a high-performance actuator assembly with a low-inertia, balanced, patented, straight arm
design that provides excellent performance with minimal power dissipation.
6Constellation ES Series SAS Product Manual, Rev. F
4.1Standard features
Constellation ES drives have the following standard features:
• Integrated dual port SAS controller supporting the SCSI protocol
• Support for SAS expanders and fanout adapters
• Firmware downloadable using the SAS interface
• 128 - deep task set (queue)
• Supports up to 32 initiators
• Jumperless configuration.
• User-selectable logical block size (512, 520, 524 or 528 bytes per logical block).
• Industry standard 3.5-inch dimensions
• Programmable logical block reallocation scheme
• Flawed logical block reallocation at format time
• Programmable auto write and read reallocation
• Reallocation of defects on command (Post Format)
• ECC maximum burst correction length of 400 bits
• No preventive maintenance or adjustments required
• Embedded servo design
• Dedicated head load/unload zone
• Self diagnostics performed when power is applied to the drive
• Vertical, horizontal, or top down mounting
• 16 Mbyte data buffer (see Section 5.5).
• Drive Self Test (DST)
• Background Media Scan (BMS)
• Idle Read After Write (IRAW)
•Power Save
Constellation® ES Series SAS Self-Encrypting Drive models have the following additional features:
• Automatic data encryption/decryption
• Controlled access
• Random number generator
• Drive locking
• 16 independent data bands
• Cryptographic erase of user data for a drive that will be repurposed or scrapped
• Authenticated firmware download
4.2Media description
The media used on the drive has a aluminum substrate coated with a thin film magnetic material, overcoated
with a proprietary protective layer for improved durability and environmental protection.
Constellation ES Series SAS Product Manual, Rev. F7
4.3Performance
• Programmable multi-segmentable cache buffer
• 600MB/s maximum instantaneous data transfers.
• 7200 RPM spindle. Average latency = 4.16ms
• Background processing of queue
• Supports start and stop commands (spindle stops spinning)
Standard OEM models are formatted to 512 bytes per block. The block size is selectable at format time and
must be a multiple of 4 bytes. Users having the necessary equipment may modify the data block size before
issuing a format command and obtain different formatted capacities than those listed.
To provide a stable target capacity environment and at the same time provide users with flexibility if they
choose, Seagate recommends product planning in one of two modes:
1. Seagate designs specify capacity points at certain blo
products will meet. We recommend customers use this capacity in their project planning, as it ensures a
stable operating point with backward and forward compatibility from generation to generation. The current
guaranteed operating points for this product are:
ck sizes that Seagate guarantees current and future
Using the Mode Select command, the drive can change its capacity to something less than maximum. See the
Mode Select (6) parameter list table in the SAS Interface Manual, part number 100293071. A value of zero in
the Number of Blocks field indicates that the drive will not change the capacity it is currently formatted to have.
A number other than zero and less than the maximum number of LBAs in the Number of Blocks field changes
the total drive capacity to the value in the Number of Blocks field. A value greater than the maximum number of
LBAs is rounded down to the maximum capacity.
8Constellation ES Series SAS Product Manual, Rev. F
4.7Factory-installed options
You may order the following items which are incorporated at the manufacturing facility during production or
packaged before shipping. Some of the options available are (not an exhaustive list of possible options):
• Other capacities can be ordered depending on sparing scheme and sector size requested.
• Single-unit shipping pack. The drive is normally shipped in bulk packaging to provide maximum protection
against transit damage. Units shipped individually require additional protection as p rovided by the sin gle unit
shipping pack. Users planning single unit distribution should specify this option.
•The Safety and Regulatory Agency Specifications, part number 75789512, is usually included with each
standard OEM drive shipped, but extra copies may be ordered.
Constellation ES Series SAS Product Manual, Rev. F9
5.0Performance characteristics
This section provides detailed information concerning perfor mance-related character istics and features of Constellation ES drives.
Drive capacity20001000500GB (formatted, rounded off value)
Read/write data heads842
Bytes per track1,012,6081,012
Bytes per surface250,000250,000250,000MB (unformatted, rounded off value)
Tracks per surface (total)248,600248,600
Tracks per inch237,000237,000
Peak bits per inch1,515,0001,515,0001,515,000BPI
Areal density347347347Gb/in
Internal data rate95 - 21295 - 21295 - 212MB/s (variable with zone)
Disc rotation speed720072007200rpm
Avg rotational latency4.164.164.16ms
See Section 12.4.1, "SAS physical interface" on page 64 and the SAS Interface Manual (part number
100293071) for additional timing details.
5.2.1Access time
1
Not including controller overhead2 (ms)
,
Including controller overhead
ReadWriteReadWrite
43
,
AverageTypical
Single trackTypical
Full strokeTypical
8.39.38.59.5
3,4
0.50.80.71.0
3,4
181918.219.2
1.Execution time measured from receipt of the Command to the Response.
2.Assumes no errors and no sector has been relocated.
3.Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as
measured on a representative sample of drives.
4.Access time = controller overhead + average seek time and applies to all data transfer commands.
Access to data = access time + latency time.
1, 2
(ms)
10Constellation ES Series SAS Product Manual, Rev. F
5.2.2Format command execution time for 512-byte sectors (minutes)
Maximum (with verify)
Maximum (without verify)
ST32000444SS
000445SS
ST32
ST32000446SS
627345173
31417386
ST31000424SS
ST31000425SS
ST31000426SS
ST3500414SS
ST3500415SS
ST3500416SS
Note.There is approximately a 1.5 increase in time to format a SED drive versus a non-SED drive of the same capacity .
5.2.3General performance characteristics
Minimum sector interleave1 to 1
Data buffer to/from disc media (one 512-byte logical block)*95 to 212 MB/s
Sustained transfer rate60 to 150 MB/s
SAS Interface maximum instant
Logical block sizes
512 (default), 520, 524 or 528.
Read/write consecutive sectors on a trackYes
Flaw reallocation performance impact (for flaws reallocated at format time using the
are sectors per sparing zone reallocation scheme.)
sp
Average rotational latency4.16ms
aneous transfer rate600MB/s* per port
(dual port = 1200MB/s*)
Negligible
*Assumes no errors and no relocated logical blocks. Rate measured from the start of the first logical block transfer to or
from the host.
5.3Start/stop time
The drive accepts the commands listed in the SAS Interface Manual less than 3 seconds after DC power has
been applied.
If the drive receives a NOTIFY (ENABLE SPINUP) primitive through either port and has not received a START
STOP UNIT command with the START bit equal to 0, the drive becomes ready for normal operations within 30
seconds (excluding the error recovery procedure).
If the drive receives a START STOP UNIT command with the START bit equal to 0 before receiving a NOTIFY
(ENABLE SPINUP) primitive, the drive waits for a START ST OP UNIT command with the START bit equal to 1.
After receiving a START STOP UNIT command with the START bit equal to 1, the drive waits for a NOTIFY
(ENABLE SPINUP) primitive. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the
drive becomes ready for normal operations within 30 seconds (excluding the error recovery procedure).
If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and does
not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT
command.
The ST AR T STOP UNIT command may be used to command the drive to stop the spindle . Stop time is 20 seconds (maximum) from removal of DC power. SCSI stop time is 20 seconds. There is no power control switch
on the drive.
Constellation ES Series SAS Product Manual, Rev. F11
5.4Prefetch/multi-segmented cache control
The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in many
cases can enhance system performance. Cache refers to the drive buffer storage space when it is used in
cache operations. To select this feature, the host sends the Mode Select command with the proper values in
the applicable bytes in page 08h. Prefetch and cache operations are independent features from the standpoint
that each is enabled and disabled independently using the Mode Select command; however, in actual operation, the prefetch feature overlaps cache operation somewhat as described in sections 5.5.1 and 5.5.2.
All default cache and prefetch mode parameter values (Mode Page 08h) for standard OEM versions of this
drive family are given in Table 10.
5.5Cache operation
Note.Refer to the SAS Interface Manual for more detail concerning the cache bits.
Of the 16MB physical buffer sp ace in the d rive, approxim ate ly 13 ,0 00 kbytes can be u sed as a cache. T he bu f-
fer is divided into logical segments from which data is read and to which data is written.
The drive keeps track of the logical block addresses of the data stored in each segment of the buffer. If the
cache is enabled (see RCD bit in the SAS Interface Manual ), data requested by the host with a read com mand
is retrieved from the buffer , if po ssible, before any disc acce ss is initiated. If cache operation is not enabled, the
buffer is still used, but only as circular buffer segments during disc medium read operations (disregarding
Prefetch operation for the moment). That is, the drive does not check in the buffer segments for the requested
read data, but goes directly to the medium to retrieve it. The retrieved data merely passes through some buffer
segment on the way to the host. All data transfers to the host are in accordance with buffer-full ratio rules. See
the explanation provided with the information about Mode Page 02h (disconnect/reconnect control) in the SAS Interface Manual.
The following is a simplified description of the prefetch/cache operation:
Case A—read command is received and all of the requested logical blocks are already in the cache:
1. Drive transfers the requested logical blocks to the initiator.
Case B—A Read command requests data, and at least one requested logical block is not in any segment of
the cache:
1. The drive fetches the requested lo gical blocks from the disc and transfers them into a segm ent, and then
from there to the host in accordance with the Mode Select Disconnect/Reconnect parameters, page 02h.
2. If the prefetch feature is enabled, re fe r t o sec tio n 5.5.2 for operation from this point.
Each cache segment is actually a self-contained circular buffer whose length is an integer number of logical
blocks. The drive dynamically creates and removes segments based on the workload. The wrap-around capability of the individual segments greatly enhances the cache’s overall performance.
Note.The size of each segment is not reporte d by Mode Sense command page 08h, bytes 14 and 15.
The value 0XFFFF is always reported regardless of the actual size of the segment. Sending a size
specification using the Mode Select command (bytes 14 and 15) does not set up a new segment
size. If the STRICT bit in Mode page 00h (byte 2, bit 1) is set to one, the drive responds as it does
for any attempt to change an unchangeable parameter.
12Constellation ES Series SAS Product Manual, Rev. F
5.5.1Caching write data
Write caching is a write operation by the drive that make s use of a drive b uffer storage area wher e the da ta to
be written to the medium is stored while the drive performs the Write command.
If read caching is enabled (RCD=0), then data written to the medium is retained in the cache to be made available for future read cache hits. The same buffer space and segmentation is used as set up for read functions.
The buffer segmentation scheme is set up or changed independently, having nothing to do with the state of
RCD. When a write command is issued, if RCD=0, the cache is first checked to see if any logical blocks that
are to be written are already stored in th e cache from a previous read or write command. If there are, the
respective cache segments are cleared. The new data is cached for subsequent Read commands.
If the number of write data logical blocks exceed the size of the segme nt being written into, when the end of the
segment is reached, the data is written into the beginning of the same cache segment, overwriting the da ta that
was written there at the beginning of the operation; however, the drive does not overwrite data that has not yet
been written to the medium.
If write caching is enabled (WCE=1), then the drive may return Good status on a write command after the data
has been transferred into the cache, but before the data has been written to the medium. If an error occurs
while writing the data to the medium, and Good status has already been returned, a deferred error will be generated.
The Synchronize Cache command may be used to force the drive to write all cached write dat a to the med ium.
Upon completion of a Synchronize Cache command, all data received from previous write commands will have
been written to the medium. Table 10 shows the mode default settings for the drive.
5.5.2Prefetch operation
If the Prefetch feature is enabled, data in contiguous logical blocks on the disc immediately beyond that which
was requested by a Read command are retrieved and stored in the buffer for immediate transfer from the buffer to the host on subsequent Read commands that request those logical blocks (this is true even if cache
operation is disabled). Though the pr ef etch operation uses the buffer as a cache, finding the requested data in
the buffer is a prefetch hit, not a cache operation hit.
To enable Prefetch, use Mode Select page 08h, byte 12, bit 5 (Disable Read Ahead - DRA bit). DRA bit = 0
enables prefetch.
The drive does not use the Max Prefetch field (bytes 8 and 9) or the Prefetch Ceiling field (bytes 10 and 11).
When prefetch (read look-ahead) is enabled (enabled by DRA = 0), the drive enables prefetch of contiguous
blocks from the disc when it senses that a prefetch hit will likely occur. The drive disables prefetch when it
decides that a prefetch hit is not likely to occur.
Constellation ES Series SAS Product Manual, Rev. F13
6.0Reliability specifications
The following reliability specifications assume correct host and drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints.
Seek error rate:Less than 10 errors in 10
Read Error Rates
1
Recovered DataLess than 10 errors in 1012 bits transferred (OEM default settings)
Unrecovered DataLess than 1 sector in 10
Miscorrected DataLess than 1 sector in 10
Interface error rate:Less than 1 error in 10
Mean Time Between Failure (MTBF):1,200,000 hours
Annualized Failure Rate (AFR):0.73%
Preventive maintenance:None required
1.Error rate specified with automatic retries and data correction with ECC enabled and all flaws reallocated.
6.1Error rates
The error rates stated in this manual assume the following:
• The drive is operated in accordance with this manual using DC power as defined in paragraph 7.3, "DC
power requirements."
• Errors caused by host system failures are excluded from error rate computations.
• Assume random data.
• Default OEM error recovery settings are applied. This includes AWRE, ARRE, full read retries, full write
retries and full retry time.
8
seeks
15
bits transferred
21
bits transferred
12
bits transferred
6.1.1Recov era b le Errors
Recoverable errors are those detected and correcte d by the drive, and do not require user intervention.
Recoverable Data errors will use correction, although ECC on-the-fly is not considered for purposes of recov-
ered error specifications.
Recovered Data error rate is determined using read bits transferred for recoverab le errors occurring during a
read, and using write bits transferred for recoverable err ors occurring during a write.
6.1.2Unrecoverable Errors
An unrecoverable data error is def ined as a failure of the d rive to recover data from the media. These errors
occur due to head/media or write problems. Unrecoverable data errors are only detected during read operations, but not caused by the read. If an unrecoverable da ta error is detected, a MEDI UM ERROR (03h) in the
Sense Key will be reported. Multiple unrecoverable data errors resulting from the same cause are treated as 1
error.
14Constellation ES Series SAS Product Manual, Rev. F
6.1.3Seek errors
A seek error is defined as a failure of the drive to position the heads to the addressed track. After detecting an
initial seek error, the drive automatically performs an error recovery process. If the error recovery process fails,
a seek positioning error (Error code = 15h or 02h) will be reported with a Hardware error (04h) in the Sense
Key. Recoverable seek errors are specified at Less than 10 errors in 10
8
seeks. Unrecoverable seek errors
(Sense Key = 04h) are classified as drive failures.
6.1.4Interface errors
An interface error is defined as a failure of the receiver on a port to recover the data as transmitted by the
device port connected to the receiver. The error may be detected as a running disparity error, illegal code, loss
of word sync, or CRC error.
6.2Reliability and service
You can enhance the reliability of Constellation ES disc drives by ensuring that the drive receives adequate
cooling. Section 7.0 provides temperature measurements and other information that may be used to enhance
the service life of the drive. Section 11.2 provides recommended air-flow information.
6.2.1Annualized Failure Rate (AFR) and Mean Time Between Failure (MTBF)
The production disc drive shall achieve an AFR of 0.73% (MTBF of 1,200,000 hours) when operated in an
environment that ensures the HDA case temperatures do not exceed the values specified in Section 7.5. Operation at case temperatures outside the specifications in Section 7.5 may increase the product AFR (decrease
the MTBF). The AFR (MTBF) is a population statistic not relevant to individual units.
The AFR (MTBF) specification is based on the following assumptions for Enterprise Storage System environments:
• 8,760 power-on hours per year.
• 250 average on/off cycles per year.
• Operations at nominal voltages.
• Systems will provide adequate cooling to ensure the case temperatures specified in Section 7.5 are not
exceeded. Temperatures outside the specifications in Section 7.5 will increase the product AFR and
decrease the MTBF.
6.2.2Preventive maintenance
No routine scheduled preventive maintenance is required.
6.2.3Hot plugging the drive
When a disc is powered on by switching the power or hot plugged, the drive runs a self test before attempting
to communicate on its’ interfaces. When the self test completes successfully, the drive initiates a Link Reset
starting with OOB. An attached device should respond to the link reset. If the link reset attempt fails, or any
time the drive looses sync, the drive initiated link reset. The drive will initiate link reset once per second but
alternates between port A and B. Therefore each port will attempt a link reset once per 2 seconds assuming
both ports are out of sync.
If the self-test fails, the drive does not respond to link reset on the failing port.
Note.It is the responsibility of the systems integrator to assure that no temperature, energy, voltage haz-
ard, or ESD potential hazard is presented during the hot connect/disconnect operation. Discharge
the static electricity from the drive carrier prior to inserting it into the system.
Constellation ES Series SAS Product Manual, Rev. F15
Caution.The drive motor must come to a complete stop prior to changing the plane of operation . This time is
required to insure data integrity.
6.2.4S.M.A.R.T.
S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology is intended
to recognize conditions that indicate imminent drive failure and is designed to provide sufficient warning of a
failure to allow you to back up the data before an actual failure occurs.
Note.The drive’s firmware monitors specific attributes for degr adation over time but can’t pred ict instant a-
neous drive failures.
Each monitored attribute has been selected to monitor a specific set of failure conditions in the operating performance of the drive and the thresholds are op tim ized to minimize “false” and “failed” predictions.
Controlling S.M.A.R.T.
The operating mode of S.M.A.R.T. is controlled by the DEXCPT and PERF bits on the Informational Exceptio ns
Control mode page (1Ch). Use the DEXCPT bit to enable or disable the S.M.A.R.T. feature. Setting the DEXCPT bit disables all S.M.A.R.T. functions. When enabled, S.M.A.R.T. collect s on-line data as the drive performs
normal read and write operations. When the PERF bit is set, the drive is considered to be in “On-line Mode
Only” and will not perform off-line functions.
You can measure off-line attributes and force the drive to save the data by using the Rezero Unit command.
Forcing S.M.A.R.T. resets the timer so that the next scheduled interrupt is in one hour.
You can interrogate the drive through the host to dete rmine the time rema ining before the next sch eduled measurement and data logging process occurs. To accomplish this, issue a Log Sense command to log page 0x3E.
This allows you to control when S.M.A.R.T. interruptions occur. Forcing S.M.A.R.T. with the RTZ comma nd
resets the timer.
Performance impact
S.M.A.R.T. attribute data is saved to the disc so that the events that cause d a predictive fa ilure can be rec reated. The drive measures and saves parameters once every one hour subject to an idle period on the drive
interfaces. The process of measuring off-line attribute data and saving data to the disc is interruptable. The
maximum on-line only processing delay is summarized below:
Maximum processing delay
On-line only delay
DEXCPT = 0, PERF = 1
S.M.A.R.T. delay times233 ms560 ms
Fully-enabled delay
DEXCPT = 0, PERF = 0
Reporting control
Reporting is controlled by the MRIE bits in the Informational Exceptions Control mode page (1Ch). An example, if the MRIE is set to one, the firmware will issue to the host an 01-5D00 sense code. The FRU field contains the type of predictive failure that occurred. The error code is preserved through bus resets and power
cycles.
Determining rate
S.M.A.R.T. monitors the rate at which errors occur and signals a predictive failure if the rate of degraded erro rs
increases to an unacceptable level. To determine rate, error events are logge d a nd com p a re d to the num ber of
total operations for a given attribute. The interval defines the number of operations o ver whic h to m easur e the
rate. The counter that keeps track of the current number of operations is referred to as the Interval Counter.
16Constellation ES Series SAS Product Manual, Rev. F
S.M.A.R.T. measures error rates. All errors for each monitored attribute are recorded. A counter keeps track of
the number of errors for the current interval. This counter is referred to as the Failure Counter.
Error rate is the number of errors per operation. The algor ithm that S.M .A.R.T. uses to record rates of error is to
set thresholds for the number of errors and their interval. If the number of errors exceeds the threshold before
the interval expires, the error rate is considered to be unacceptable. If the number of errors does not exceed
the threshold before the interval expires, the error rate is considered to be acceptable. In either case, the interval and failure counters are reset and the process starts over .
Predictive failures
S.M.A.R.T. signals predict ive failures when the drive is performing unacceptably for a period of time. The firmware keeps a running count of the number of times the error rate for each attribute is unacceptable. To accomplish this, a counter is incremented e ach time the erro r rate is unacceptable and decremented (not to exceed
zero) whenever the error rate is acceptable. If the counter continually increments such that it reaches the predictive threshold, a predictive failure is signaled. This counter is referred to as the Failure History Counter.
There is a separate Failure History Counter for each attribute.
6.2.5Thermal monitor
Constellation ES drives implement a temperature warning system which:
1. Signals the host if the temperature exceeds a value which would threaten the drive.
2. Signals the host if the temperature exceeds a user-specified value.
3. Saves a S.M.A.R.T. data frame on the drive which exceeds the threatening temperature value.
A temperature sensor monitors the drive temperature and issues a warning over the interface when the temperature exceeds a set th reshold. The t emperature is measured a t power-up an d then at te n-minute inter vals
after power-up.
The thermal monitor system generates a warning code of 01-0B01 when the temperature exceeds the specified limit in compliance with the SCSI standard. The drive temperature is reported in the FRU code field of
mode sense data. You can use this information to determine if the warning is due to the temperature exceeding
the drive threatening temperature or the user-specified temperature.
This feature is controlled by the Enable Warning (EWasc) bit, and the re porting mecha nism is controlle d by the
Method of Reporting Informational Exceptions field (MRIE) on the Informational Exceptions Control (IEC)
mode page (1Ch).
The current algorithm implements two temperature trip points. The first trip point is set at 65°C which is the
maximum temperature limit according to the drive specification. The second trip point is user-selectable using
the Log Select command. The reference temperature parameter in the temperature log page (see Table 1) can
be used to set this trip point. The default value for this drive is 65°C, however, you can set it to any value in the
range of 0 to 65°C. If you specify a temperature greater than 65°C in this field, the temperature is rounded
down to 65°C. A sense code is sent to the host to indicate the rounding of the parameter field.
Table 1: Temperature Log Page (0Dh)
Parameter CodeDescription
0000h
0001h
Primary Temperature
Reference Temperature
Constellation ES Series SAS Product Manual, Rev. F17
6.2.6Drive Sel f Test (DST)
Drive Self Test (DST) is a technology designed to recognize drive fault conditions that qualify the drive as a
failed unit. DST validates the functionality of the drive at a system level.
There are two test coverage options implemented in DST:
1. Extended test
2. Short test
The most thorough option is the extended test that performs various tests on the drive and scans ev er y lo gic al
block address (LBA) of the drive. The short test is time-restricted and limited in length—it does not scan the
entire media surface, but does some fundamental tests and scans portions of the media.
If DST encounters an error during either of these tests, it reports a fault condition. If the drive fails the test,
remove it from service and return it to Seagate for service.
6.2.6.1DST failure definition
The drive will present a “diagnostic failed” condition through the self-tests results value of the diagnostic log
page if a functional failure is encountered during DST. The channel and servo parameters are not modified to
test the drive more stringently, and the number of retries are not reduced. All retries and recovery processes
are enabled during the test. If data is recoverable, no failure condition will be reported regardless of the number
of retries required to recover the data.
The following conditions are considered DST failure conditions:
• Seek error after retries are exhausted
• Track-follow error after retries are exhausted
• Read error after retries are exhausted
• Write error after retries are exhausted
Recovered errors will not be reported as diagnostic failures.
6.2.6.2Implementation
This section provides all of the information necessary to implement the DST function on this drive.
6.2.6.2.1State of the drive prior to testing
The drive must be in a ready state before issuing the Send Diagnostic command. There are multiple reasons
why a drive may not be ready, some of which are valid conditions, and not errors. For example, a drive may be
in process of doing a format, or another DST. It is the responsibility of the host application to determine the “not
ready” cause.
While not technically part of DST, a Not Ready condition also qualifies the drive to be returned to Seagate as a
failed drive.
A Drive Not Ready condition is reported by the drive under the following conditions:
• Motor will not spin
• Motor will not lock to speed
• Servo will not lock on track
• Drive cannot read configuration tables from the disc
In these conditions, the drive responds to a Test Unit Ready command with an 02/04/00 or 02/04/03 code.
6.2.6.2.2Invoking DST
To invoke DST, submit the Send Diagnostic command with the appropriate Function Code (001b for the short
test or 010b for the extended test) in bytes 1, bits 5, 6, and 7.
18Constellation ES Series SAS Product Manual, Rev. F
6.2.6.2.3Short and extended tests
DST has two testing options:
1. short
2. extended
These testing options are described in the following two subsections.
Each test consists of three segments: an electrical test segment, a servo test segment, and a read/verify scan
segment.
Short test (Function Code: 001b)
The purpose of the short test is to provide a time-limited test that tests as much of the drive as possible within
120 seconds. The short test does not scan the entire media surface, but does some fundamental tests and
scans portions of the media. A complete read/verify scan is not performed and only factual failures will report a
fault condition. This option provides a quick confidence test of the drive.
Extended test (Function Code: 010b)
The objective of the extended test option is to empirically test critical drive componen ts. For example, the seek
tests and on-track operations test the positioning mechanism. The read operation tests the read head element
and the media surface. The write element is tested through read/write/read operations. The integrity of the
media is checked through a read/verify scan of the media. Motor functionality is tested by default as a part of
these tests.
The anticipated length of the Extended test is reported through the Control Mode page.
6.2.6.2.4Log page entries
When the drive begins DST, it creates a new entry in the Self-test Results Log page. The new entry is created
by inserting a new self-test parameter block at the b eginning of the se lf-test result s log par ameter section of the
log page. Existing data will be moved to make room for the new parameter block. The drive reports 20 parameter blocks in the log page. If there are more than 20 parameter blocks, the least recent parameter block will be
deleted. The new parameter block will be initialized as follows:
1. The Function Code field is set to the same value as sent in the DST command
2. The Self-Test Results Value field is set to Fh
3. The drive will store the log page to non-volatile memory
After a self-test is complete or has been aborted, the drive updates the Self-Test Results Value field in its SelfTest Results Log page in non-volatile memory. The host may use Log Sense to read the results from up to the
last 20 self-tests performed by the drive. Th e se lf- te st r esults value is a 4-bit field that reports the results of the
test. If the field is set to zero, the drive passed with no errors detected by the DST. If the field is not set to zero,
the test failed for the reason reported in the field.
The drive will report the failure condition and LBA (if applicable) in the Self-test Results Log parameter. The
Sense key, ASC, ASCQ, and FRU are used to report the failure condition.
6.2.6.2.5Abort
There are several ways to abort a diagnostic. You can use a SCSI Bus Reset or a Bus Device Reset message
to abort the diagnostic.
You can abort a DST executing in background mode by using the abort code in the DST Function Code field.
This will cause a 01 (self-test aborted by the application client) code to appear in the self-test results values
log. All other abort mechanisms will be reported as a 02 (self-test routine was interrupted by a reset condition).
Constellation ES Series SAS Product Manual, Rev. F19
6.2.7Product warranty
Beginning on the date of shipment to the customer and continuing for the period specified in your purchase
contract, Seagate warrants that each product (including components and subassemblies) that fails to function
properly under normal use due to defect in materia ls or workman ship or due to n onconformance to the applicable specifications will be repaired or replaced, at Seagate’s option and at no charge to the customer , if returned
by customer at customer’s expense to Seagate’s designated facility in accordance with Seagate’s warranty
procedure. Seagate will pay for transporting the repair or replacement item to the customer. For more detailed
warranty information, refer to the standard terms and conditions of purchase for Seagate products on your purchase documentation.
The remaining warranty for a particular drive can be determined by calling Seagate Customer Service at
1-800-468-3472. You can also determine remaining warranty using the Seagate web site (www.seagate.com).
The drive serial number is required to determine remaining warranty information.
Shipping
When transporting or shipping a drive, use only a Seagate-approved container. Keep your original box. Seagate approved containers are easily identified by the Seagate Approved Package label. Shipping a drive in a
non-approved container voids the drive warranty.
Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in transit. Contact your authorized Seagate distributor to purchase additional boxes. Seagate recommends shipping
by an air-ride carrier experienced in handling computer equipment.
Product repair and return information
Seagate customer service centers are the only facilities authorized to service Seagate drives. Seagate does
not sanction any third-party repair facilities. Any unauthorized repair or tampering with the factory seal voids
the warranty.
20Constellation ES Series SAS Product Manual, Rev. F
7.0Physical/electrical specifications
This section provides information relating to the physical and electrical characteristics of the dr ive.
7.1PowerChoiceTM power management
Drives using the load/unload architecture provide programmable power management to tailor systems for performance and greater energy efficiency.
The table below lists the supporte d PowerChoice mod es. The further you go down in the t abl e, the more power
savings you get. For example, Idle2 mode results in greater power savings than Idle1 mode. Standby mode
results in the greatest power savings.
PowerChoice modes
ModeDescription
Idle_AReduced electronics
Idle_BHeads unloaded. Disks spinning at full RPM
Idle_CHeads unloaded. Disks spinning at reduced RPM
Standby_YHeads unloaded. Disks spinning at reduced RPM.
Standby_ZHeads unloaded. Motor stopped (disks not spinning)
PowerChoice
TM
Recovery requires the NOTIFY (Enable Spinup) command.
Recovery requires the NOTIFY (Enable Spinup) command.
can be invoked using one of these two methods:
• Power Condition mode page method—Enable and in itialize th e idle co ndition tim ers an d/o r the standby con dition timers. The timer values are based on the values set in the Power Condition mode page.
• START STOP UNIT command method—Use the START ST
OP UNIT command (OPERATION CODE 1Bh).
This allows the host to directly transition the drive to any supported PowerChoice mode.
If both the Power Condition mode page and START ST
OP UNIT command methods are used, the START
STOP UNIT command request takes precedence over the Power Condition mo de p age power contro l and may
disable the idle condition and standby condition timers. The REQUEST SENSE command reports the current
PowerChoice state if active and also the method by which the drive entered the PowerChoice state.
When the drive receives a command, all power condition timers are suspended if they were enabled via the
Power Condition mode page. Once all outstanding commands are processed, the power condition timers are
reinitialized to the values defined in the Power Condition mode page.
Constellation ES Series SAS Product Manual, Rev. F21
7.1.1PowerChoice reporting methods
PowerChoiceTM provides these reporting methods for tracking purposes:
Request Sense command reports
• Current power condition
• Method of entry
Note.Processing the Request Sense command does not impact the drive’s power save state.
Mode Sense command reports (mode page 0x1A)
• Idle conditions enabled / disabled
• Idle condition timer values (100ms increm e nts) (def au lt, save d, cu rr en t, ch an g ea ble)
Power Condition Vital Product Data (VPD) Page (VPD page 0x8A)
• Supported power conditions
• Typical recovery time from power conditions (1ms increments)
Start/Stop Cycle Counter Log Page reports (lo g page 0x0E)
• Specified an d accumulated Start/Stops and Load/Unload cycles
• Accumulated transitions to Active, Idle_A, Idle_B, Idle_C, Standby_Y, Standby_Z
7.2AC power requirements
None.
7.3DC power requirements
The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive
connector.
The standard drive models and the SED drive models have identical hardware, however the security and
encryption portion of the drive controller ASIC is enabled and functional in the SED models. This represents a
small additional drain on the 5V supply of about 30mA and a commensurate increase of about 150mW in
power consumption. There is no additional drain on the 12V supply.
22Constellation ES Series SAS Product Manual, Rev. F
Table 2: 2000GB drive (Standard & SED model) DC power requirements
(peak AC) AC3σ[5]0.832.420.902.58
Delayed motor start (max) DC3σ[1] [6]0.350.030.380.03
Peak operating current (random read):
Typical DCX
Maximum DC3σ[1]0.570.440.590.44
[1] [7]0.420.210.430.21
[1] [6]0.550.420.570.42
(Amps)(Amps)
Maximum (peak) DC3σ1.131.531.191.53
Peak operating current (random write)
Typical DCX
Maximum DC3σ0.630.350.640.35
Maximum (peak) DC3σ1.311.571.311.57
Peak operating current (sequential read)
Typical DCX
Maximum DC3σ0.980.241.010.24
Maximum (peak) DC3σ1.150.451.230.45
Peak operating current (sequential write)
Typical DCX
Maximum DC3σ1.070.241.080.24
Maximum (peak) DC3σ1.320.421.340.42
0.610.340.620.34
0.960.230.980.23
1.050.231.060.23
[1] Measured with average readin g DC am m et er.
[2]Instantaneous +12V current peaks will exceed these values.
[3]Power supply at nominal voltage. N (number of drives tested) = 6, 35 Degrees C ambient.
[4]For +12 V, a –10% tolerance is allowed during initial spindle start but must return to ±5% before reaching
7200 RPM. The ±5% must be maintained after the drive signifies that its power-up sequence has been
completed and that the drive is able to accept selection by the host initiator.
Constellation ES Series SAS Product Manual, Rev. F25
[5]See +12V current profile in Figure 3.
[6]This condition occurs after OOB and Speed Negotiation completes but before the drive has received the
Notify Spinup primitive.
[7]See paragraph 7.3.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and
transient response.
[8]Operating condition is defined as random 8 block reads.
[9]During idle, the drive heads are relocated every 60 seconds to a random location within the band from
three-quarters to maximum track.
General DC power requirement notes.
1. Minimum current loading for each su pply voltage is not less than 1.7% of the ma ximum operating curren t
shown.
2. The +5V and +12V supplies should employ separate ground returns.
3. Where power is provided to multiple drives from a common supply, careful consideration for individual
drive power requirements should be noted. Where multiple units are powered on simultaneously, the peak
starting current must be available to each device.
4. Parameters, other than spindle start, are measured after a 10-minute warm up.
5. No terminator power.
7.3.1Conducted noise immunity
Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz.
Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power
connector.
+5v=250 mV pp from 100 Hz to 20 MHz.
+12v=800 mV pp from 100 Hz to 8 KHz.
450 mV pp from 8 KHz to 20 KHz.
250 mV pp from 20 KHz to 5 MHz.
7.3.2Power sequencing
The drive does not require power sequencing. The drive protects against inadvertent writing during power-up
and down.
26Constellation ES Series SAS Product Manual, Rev. F
7.3.3Current profiles
The +12V (top) and +5V (bottom) current profiles for the Constellation ES drives are shown below.
Figure 1. 2TB model current profiles
Note: All times and currents are typical. See Table 2 for maximum current requirements.
Constellation ES Series SAS Product Manual, Rev. F27
Figure 2. 1TB model current profiles
Note: All times and currents are typical. See Table 2 for maximum current requirements.
28Constellation ES Series SAS Product Manual, Rev. F
Figure 3. 500GB model current profiles
Note:
All times and currents are typical. See Table 2 for maximum current requirements.
Constellation ES Series SAS Product Manual, Rev. F29
7.4Power dissipation
0
1
2
3
4
5
6
7
8
9
10
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0 20406080100120140160
P
o
w
e
r
(
w
a
t
t
s
)
A
m
p
e
r
e
s
I/Os per S econd
ST 32000444SS CURRE NT/ P OW ER v s T HROUG HP UT ( SA S - 3. 0GB)
Random 8 Block Reads
12 Volt A
Watts
2TB models in 3Gb operation
Please refer to Table 2 for power dissipation numbers.
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
4). Locate the typical I/O rate for a drive in y our system on the horizontal axis and read the corresponding +5
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by
3.4123.
5Volt A
Figure 4. 2TB models (3Gb) DC current and power vs. input/output operatio ns per second
Note.For power details about SED vs. non-SED drive, please refer to section 7.8.
30Constellation ES Series SAS Product Manual, Rev. F
2TB models in 6Gb operation
Please refer to Table 2 for power dissipation numbers.
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
5.). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by
3.4123.
Figure 5. 2TB models (6Gb) DC current and power vs. input/output operations per second
For power details about SED vs. non-SED drive, please refer to section 7.8.
Constellation ES Series SAS Product Manual, Rev. F31
1TB models in 3Gb operation
0
1
2
3
4
5
6
7
8
9
10
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
020406080100120140160
P
o
w
e
r
(
w
a
t
t
s
)
A
m
p
e
r
e
s
I/Os pe r S e cond
ST 31000424S S C URR ENT /P OW E R v s TH RO UG HPU T ( SA S - 3.0GB )
Ran do m 8 Blo ck Reads
5Volt A
12 Volt A
Watts
Please refer to Table 2 for power dissipation numbers.
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
6). Locate the typical I/O rate for a drive in y our system on the horizontal axis and read the corresponding +5
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by
3.4123.
Figure 6. 1TB models (3Gb) DC current and power vs. input/output operatio ns per second
Note.For power details about SED vs. non-SED drive, please refer to section 7.8.
32Constellation ES Series SAS Product Manual, Rev. F
1TB models in 6Gb operation
Please refer to Table 2 for power dissipation numbers.
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
7.). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by
3.4123.
Figure 7. 1TB models (6Gb) DC current and power vs. input/output operations per second
For power details about SED vs. non-SED drive, please refer to section 7.8.
Constellation ES Series SAS Product Manual, Rev. F33
500GB models in 3Gb operation
0
1
2
3
4
5
6
7
8
9
10
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0 20406080100120140160180
P
o
w
e
r
(
w
a
t
t
s
)
A
m
p
e
r
e
s
I/Os per S econd
ST3500414SS CURRENT /POW ER vs THRO UGHP UT (SA S -3. 0GB)
Random 8 Block Reads
Please refer to Table 2 for power dissipation numbers.
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
8). Locate the typical I/O rate for a drive in y our system on the horizontal axis and read the corresponding +5
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by
3.4123.
5Volt A
12 Volt A
Watts
Figure 8. 500GB models (3Gb) DC current and power vs. input/output operations per second
Note.For power details about SED vs. non-SED drive, please refer to section 7.8.
34Constellation ES Series SAS Product Manual, Rev. F
500GB models in 6Gb operation
Please refer to Table 2 for power dissipation numbers.
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
9.). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by
3.4123.
Figure 9. 500GB models (6Gb) DC current and power vs. input/output operations per second
For power details about SED vs. non-SED drive, please refer to section 7.8.
Constellation ES Series SAS Product Manual, Rev. F35
7.5Environmental limits
HDA Temp.
Check Point
Temperature and humidity values experienced by the drive must be such that condensation does not occur on
any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F
(14.8°C). Maximum wet bulb temperature is 82°F (28°C).
7.5.1Temperature
a. Operating
The drive meets the operating specifications over a 41°F to 140°F (5°C to 60°C) drive case temperature
r
ange with a maximum temperature gradient of 36°F (20°C) per hour.
The maximum allowable drive case temperature is 60°C. See Figure 10 for HDA case temperature
measurement location.
The MTBF specification for the drive assume
case temperature. The rated MTBF is based upon a sustained case temperature of 104°F (40°C).
Occasional excursions in operatin g temperature between the rated M TBF temperature and the maximum
drive operating case temperature may occur without impact to the rated MTBF temperature. However,
continual or sustained operation at case temperatures beyond the rated MTBF temperature will degrade the
drive MTBF and reduce product reliability.
Air flow may be required to achieve consistent no
firm that the required cooling is provided for the electr
configuration, and perform random write/read operations. After the temperatures stabilize, measure the
case temperature of the drive.
b. Non-operating
–40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This
spe
cification assumes that the drive is packaged in th e shipping cont ainer designed b y Seagate for use with
drive.
s the operating environment is designed to maintain nominal
minal case temperature values (see Section 11.2). To con-
onics and HDA, place the drive in its final mechanical
Figure 10. Location of the HDA temperature check point
Note.Image is for reference only, may not represent actual drive.
7.5.2Relative humidity
The values below assume that no condensation on the drive occurs.
a. Operating
5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour.
b. Non-operating
5% to 95% non-condensing relative humidity.
36Constellation ES Series SAS Product Manual, Rev. F
7.5.3Effective altitude (sea level)
a. Operating
–200 to +10,000 feet (–61
to +3,048 meters)
b. Non-operating
–200 to +40,000 feet (–61 to +12,210 meters)
7.5.4Shock and vibration
Shock and vibration limits specified in this document are measured directly on the drive chassis. If the drive is
installed in an enclosure to which the stated shock and/or vibration criteria is applied, resona nces may occur
internally to the enclosure resulting in drive movement in excess of the stated limits. If this situation is apparent,
it may be necessary to modify the enclosure to minimize drive movement.
The limits of shock and vibration defined within this document are specified with the drive mounted by any of
the four methods shown in Figure 11, and in accordance with the restrictions of Section 11.3.
7.5.4.1Shock
a. Operating—normal
The drive, as installed for normal operation, shall oper ate e
rror free while subjected to intermittent shock not
exceeding 70 Gs at a maximum duration of 2ms (half sinewave). Shock may be applied in the X, Y, or Z
axis. Shock is not to be repeated more than once every 2 seconds.
b. Operating—abnormal
Equipment, as installed for normal operation, does not incur physical damage while su
bjected to intermittent shock not exceeding 40 Gs at a maximum duration of 11ms (half sinewave). Shock occurring at abnormal levels may promote degraded operational perform
ance during the abnormal shoc k period. Specified
operational performance will continue when normal operating shock levels resume. Shock may be applied
in the X, Y, or Z axis. Shock is not to be repeated more than once every 2 seconds.
c. Non-operating
The limits of non-operating shock shall apply to all conditions of h
andling and transportation. This includes
both isolated drives and integrated drives.
The drive subjected to nonrepetitive shock not exceeding 80
wave) shall not exhibit device damage or performance de
Gs at a maximum duration of 11ms (half sine-
gradation. Shock may be applied in the X, Y, or Z
axis.
The drive subjected to nonrepetitive shock not exceeding
300 Gs at a maximum duration of 2ms (half sine-
wave) does not exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z
is.
ax
The drive subjected to nonrepetitive shock not exceeding
ewave) does not exhibit de vice dama ge
or performance degradation. Shock may be applied in the X, Y, or
200 Gs at a maximum duration of 0.5ms (half sin-
Z axis.
d. Packaged
Disc drives shipped as loose load (not p
alletized) general freight will be packaged to withstand drops from
heights as defined in the table below. For additional details refer to Seagate specifications 30190-001
(under 100 lbs/45 kg) or 30191-001 (over 100 lbs/45 Kg).
Package sizePackaged/product weightDrop height
<600 cu in (<9,800 cu cm)Any60 in (1524 mm)
600-1800 cu in (9,800-19,700 cu cm)0-20 lb (0 to 9.1 kg)48 in (1219 mm)
>1800 cu in (>19,700 cu cm)0-20 lb (0 to 9.1 kg)42 in (1067 mm)
>600 cu in (>9,800 cu cm)20-40 lb (9.1 to 18.1 kg)36 in (914 mm)
Constellation ES Series SAS Product Manual, Rev. F37
Drives packaged in single or multipacks with a gross weight of 20 pounds (8.95 kg) or less by Seagate for
Z
Y
X
Z
Y
X
general freight shipment shall withstand a drop test from 48 inches (1,070 mm) against a concrete floor or
equivalent.
Figure 11. Recommended mounting
Note.Image is for reference only, may not represent actual drive.
7.5.4.2Vibration
a. Operating—normal
The drive as installed for normal operatio n, shall comply
with the complete specified performance while
subjected to continuous vibration not exceeding
5 - 22 Hz0.25 Gs, limited displacement
22 - 350 Hz0.5 Gs
350 - 500 Hz0.25 Gs
Vibration may be applied in the X, Y, or Z axis.
b. Operating—abnormal
Equipment as installed for normal operation shall not incur
vibration not exceeding:
15 minutes of duration at major resonant frequency
Vibration occurring at these levels may degrade opera
tional performance during the abnormal vibration
physical damage while subjected to periodic
period. Specified operational performance will continue when normal operating vibration levels are
resumed. This assumes system recovery routines are available.
Operating abnormal translational random flat profile
5-500 Hz @ 0.75 G (X, Y, or Z axis)
38Constellation ES Series SAS Product Manual, Rev. F
c. Non-operating
The limits of non-operating vibration shall apply to all conditions of handling and transportation. This
includes both isolated drives and integrated drives.
The drive shall not incur physical damage or degraded performance as a result of continuous vibration not
exceeding
Sound power during idle mode shall be 2.7 bels typical when measured to ISO 7779 specification. Sound
power while operating shall be 3.0 bels typical when measured to ISO 7779 specification.
There will not be any discrete tones more than 10 dB above the masking noise on typical drives when measured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the
masking noise on any drive.
7.5.6Air cleanliness
The drive is designed to operate in a typical office environment with minimal environmental control.
7.5.7Corrosive environment
Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to
light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM
B845. However, this accelerated testing cannot duplicate every potential application environment.
Users should use caution exposin g any electronic c omponents to uncontrolled chemical pollutants and corrosive chemicals as electronic drive component reliability can be affected by the installationenvironment. The silver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide,
chloride, and nitrate contaminants. Sulfur is found to be the most da maging. In addi tion, electronic comp onent s
should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or
exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulcanized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any
electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.
7.5.8Electromagnetic susceptibility
See Section 3.1.1.1.
Constellation ES Series SAS Product Manual, Rev. F39
7.6Mechanical specifications
Breather
Hole
mm
in
mm
in
mm
in
Refer to Figure 12 for detailed mounting configuration dimensions. See Section 11.3, “Drive mounting.”
Weight:
.5TB models
1TB models
2TB models
1.34 lb
1.41 lb
1.57 lb
610 g
640 g
710 g
Note.Th
SFF-8323, found at
ese dimensions conform to the Small Form Factor Standard documented in SFF-8301 and
www.sffcommittee.org.
Figure 12. Mounting configuration dimensions
40Constellation ES Series SAS Product Manual, Rev. F
8.0About FIPS
The Federal Information Processing Standard (FIPS) Publication 140-2, FIPS PUB 140-2, is a U.S. government computer security standard used to accredit crypto gr aphic modules. It is titled “Security Requiremen ts for
Cryptographic Modules”. The initial publicat ion was o n M ay 25, 2 001 a nd was la st upd ated Decemb er 3, 2002.
Purpose
The National Institute of Standards and Technology (NIST) issued the FIPS 14 0 Publication Series to coord inate the requirements and standards for cryptography modules that include both hardware and software components.
Federal Information Processing Standard (FIPS) 140-2 Level 2 Certification requires drives to go through government agencies certifications to add requirements for physical tamper-evidence and role-based authentication.
Level 2 security
Level 2 improves upon the physical security mechanisms of a Level 1 (lowest level of security) cryptographic
module by requiring features that show evidence of tampering, including tamper-evident coatings or seals that
must be broken to attain physical access to th e plaintext cryptographic keys and critic al security parameters
(CSPs) within the module, or pick-resistant locks on covers or doors to protect against unauthorized physical
access.
Figure 13. Example of FIPS tamper evidence labels. Does not represent actual drive.
Constellation ES Series SAS Product Manual, Rev. F41
9.0About self-encrypting drives
Self-encrypting drives (SEDs) offer encryption and security services for the protection of stored data, commonly known as “protection of data at rest.” These drives are compliant with the Trusted Computing Group
(TCG) Enterprise Storage Specifications as detailed in Section 3.2.
The Trusted Computing Group (TCG) is an organization sponsored and operated by companies in the computer, storage and digital communications industry. Seagate’s SED models comply with the standards published by the TCG.
To use the security features in the drive, the host must be capable of constructing and issuing the followin g two
SCSI commands:
• Security Protocol Out
• Security Protocol In
These commands are used to convey the TCG protocol to and from the drive in their command payloads.
9.1Data encryption
Encrypting drives use one inline encryption engine for each port, emp loying AES-128 dat a encryption in Cipher
Block Chaining (CBC) mode to encrypt all data prior to being written on the media and to decrypt all data as it
is read from the media. The encryption engines are always in operation, cannot be disabled, and do not d etract
in any way from the performance of the drive.
The 32-byte Data Encryption Key (DEK) is a random number which is genera ted by the dr ive, never leaves the
drive, and is inaccessible to the host system. The DEK is itself encrypted when it is stored on the media and
when it is in volatile temporary storage (DRAM) external to the encryption engine. A unique data encryption
key is used for each of the drive's possible16 data bands (see Section 9.5).
9.2Controlled access
The drive has two security partitions (SPs) called the "Admin SP" and the "Locking SP." These act as gatekeepers to the drive security services. Security-related commands will not be accepted unless they also supply
the correct credentials to prove the requester is authorized to perform the command.
9.2.1Admin SP
The Admin SP allows the drive's owner to enable or disable firmware download operations (see Section 9.4).
Access to the Admin SP is available using the SID (Secure ID) password or the MSID (Makers Secure ID)
password.
42Constellation ES Series SAS Product Manual, Rev. F
9.2.2Locking SP
The Locking SP controls read/write access to the media and the cryptographic erase feature. Access to the
Locking SP is available using the BandMasterX or EraseMaster passwords. Since the drive owner can define
up to 16 data bands on the drive, each data band has its own password called BandMasterX where X is the
number of the data band (0 through 15).
9.2.3Default password
When the drive is shipped from the factory, all passwords are set to the value of MSID. This 32-byte random
value is printed on the drive label and it can be read by the host electronically over the I/O. After receipt of the
drive, it is the responsibility of the owner to use the default MSID password as the authority to change all other
passwords to unique owner-specified values.
9.3Random number generator (RNG)
The drive has a 32-byte hardware RNG that it is uses to derive encryption keys or, if requested to do so, to provide random numbers to the host for system use, including using these nu mbers as Authentication Keys ( p asswords) for the drive’s Admin and Locking SPs.
9.4Drive locking
In addition to changing the passwords, as described in Section 9.2.3, the owner should also set the data
access controls for the individual bands.
The variable "LockOnReset" should be set to "PowerCycle" to ensure that the data bands will be locked if
power is lost. This scenario occurs if the drive is removed from its cabinet. The drive will not honor any data
read or write requests until the bands have been unlocked. This prevents the user data from being accessed
without the appropriate credentials when the drive has been removed from its cabinet and installed in another
system.
When the drive is shipped from the factory, the firmware download port is locked and the drive will reject any
attempt to download new firmware. Th e dr ive own er m ust us e th e SID cr ed en tia l to un loc k th e fir m wa re do wn load port before firmware updates will be accepted.
9.5Data bands
When shipped from the factory, the drive is configured with a single data band called Band 0 (als o known as
the Global Data Band) which comprises LBA 0 through LBA max. The host may allocate Band1 by specifying a
start LBA and an LBA range. The r eal est a te for this band is t aken from the Global Band. An add itional 14 Dat a
Bands may be defined in a similar way (Band2 through Band15) but before these bands can be allocated LBA
space, they must first be individually enabled using the EraseMaster password.
Data bands cannot overlap but they can be sequential with one ba nd e ndi ng at LBA (x) and the ne xt b eginnin g
at LBA (x+1).
Each data band has its own drive-generate d encryption key and it s own user-supplied p assword. The host may
change the Encryption Key (see Section 9.6) or the password when required. The bands should be aligned to
4K LBA boundaries.
Constellation ES Series SAS Product Manual, Rev. F43
9.6Cryptographic erase
A significant feature of SEDs is the ability to perform a cryptographic erase. This involves the host telling the
drive to change the data encryption key for a p ar ticu lar ban d. On ce chang ed , the data is no longer recoverable
since it was written with one key and will be read using a different key. Since the drive overwrites the old key
with the new one, and keeps no history of key changes, the user data can never be recovered. This is tantamount to an instantaneous data erase and is very useful if the drive is to be scrapped or redispositioned.
9.7Authenticated firmware download
In addition to providing a locking mechanism to prevent unwanted firmware download attempts, the drive also
only accepts download files which have been cryptographically signed by the appropriate Seagate Design
Center.
Three conditions must be met before the drive will allow the download operation:
1. The download must be an SED file. A standard (base) drive (non-SED) file will be rejected.
2. The download file must be signed and authenticated.
3. As with a non-SED drive, the download file must pass the acceptance criteria for the drive. For example it
must be applicable to the correct drive model, and have compatible revision and customer status.
9.8Power requirements
The standard drive models and the SED drive models have identical hardware, however the security and
encryption portion of the drive controller ASIC is enabled and functional in the SED models. This represents a
small additional drain on the 5V supply of about 30mA and a commensurate increase of about 150mW in
power consumption. There is no additiona l drain on the 12V supply. See the tables in Section 7.3 for power
requirements on the standard (non-SED) drive models.
9.9Supported commands
The SED models support the following two commands in addition to the commands supported by the standard
(non-SED) models as listed in Table 8:
• Security Protocol Out (B5h)
• Security Protocol In (A2h)
44Constellation ES Series SAS Product Manual, Rev. F
10.0Defect and error management
Seagate continues to use innovative technologies to manage defects and errors. These technologies are
designed to increase data integrity, perform drive self-maintenance, and validate proper drive operation.
SCSI defect and error managemen t involves drive internal defect/error management and SAS system error
considerations (errors in communications between the initiator and the drive). In addition, Seagate provides
the following technologies used to increase data integrity and drive reliability:
• Background Media Scan (see Section 10.4)
• Media Pre-Scan (see Section 10.5)
• Deferred Auto-Reallocation (see Section 10.6)
• Idle Read After Write (see Section 10.7)
The read error rates and specified storage capacities are not dependent on host (initiator) defect management
routines.
10.1Drive internal defects/errors
During the initial drive format operation at the factory, media defects are identified, tagged as being unusable,
and their locations recorded on the drive primary defects list (referred to as the “P’ list and also as the ETF
defect list). At factory format time, these known defects are also reallocated, that is, reassigned to a new place
on the medium and the location liste d in the defects reallocation table. The “P” list is not altered after factory
formatting. Locations of defects found and reallocated during error recovery procedures after drive shipment
are listed in the “G” list (defects growth list). The “P” and “G” lists may be referenced by the initiator using the
Read Defect Data command.
Details of the SCSI commands supported by the drive are described in the SAS Interface Manual. Also, more
information on the drive Error Recovery philosophy is presented in the SAS Interface Manual.
10.2Drive error recovery procedures
When an error occurs during drive operation, the drive, if pr ogrammed to do so, performs e rror recover y procedures to attempt to recover the dat a . The erro r reco very pro cedures us ed depen d on the o ptions prev iously set
in the Error Recovery Parameters mode page. Error recovery and defect management may involve using several SCSI commands described in the SAS Interface Manual. The drive implements selectable error recovery
time limits required in video applications.
The error recovery scheme supported by the drive provides a way to control the to tal error r ecovery time for the
entire command in addition to controlling the recovery level for a single LBA. The total amount of time spent in
error recovery for a command can be limited using the Recovery Time Limit bytes in the Error Recovery mode
page. The total amount of time spent in error recovery for a single LBA can be limited using the Read Retry
Count or Write Retry Count bytes in the Error Recovery mode page.
Constellation ES Series SAS Product Manual, Rev. F45
The drive firmware error recovery algorithms consist of 12 levels for read recoveries and five levels for write.
Each level may consist of multiple steps, where a step is defined as a recovery function involving a single reread or re-write attempt. The maximum level used by the drive in LBA recovery is determined by the read and
write retry counts.
Table 5 equates the read and write retry count with the maximum possible recovery time for read and write
recovery of individual LBAs. The times given do not include time taken to perform reallocations. Reallocations
are performed when the ARRE bit (for reads) or AWRE bit (for writes) is one, the RC bit is zero, and the recovery time limit for the command has not yet been met. Time needed to perform reallocation is not counted
against the recovery time limit.
When the RC bit is one, reallocations are disabled even if the ARRE or AWRE bits are one. The drive will still
perform data recovery actions within the limits defined by the Read Retry Count, Write Retry Count, and
Recovery Time Limit parameters. However, the drive does not report any unrecovered errors.
Table 5: Read and write retry count maximum recovery times
Setting these retry counts to a value below the default setting could result in degradation of the unrecovered
error rate. For example, suppose the read/wri te r ecover y p ag e has the RC bit = 0, the re ad retry co unt set to 4,
and the recovery time limit set to 450. A 4-block read command can take up to 483.14ms recovery time for
each block and a maximum of 450ms recovery for all four blo cks. If either of these limit s is reached an d a block
has not yet been recovered, the command will end with Check Condition status and an unrecoverable read
error will be reported.
10.3SAS system errors
Information on the reporting of operational errors or faults across the interface is given in the SAS Interface
Manual. The SSP Response returns information to the host about numerous kinds of errors or faults. The
Receive Diagnostic Results reports the results of diagnostic operations performed by the drive.
Status returned by the drive to the initiator is described in the SAS Interface Manual. Status reporting plays a
role in systems error management and its use in that respect is described in sections where the various commands are discussed.
46Constellation ES Series SAS Product Manual, Rev. F
10.4Background Media Scan
Background Media Scan (BMS) is a self-initiated media scan. BMS is defined in the T10 document SPC-4
available from the T10 committee. BMS performs sequential reads across the entire pack of the media while
the drive is idle. In RAID arrays, BMS allows hot spare drives to be scann ed for defects prior to being pu t into
service by the host system. On regular duty drives, if the host system makes use of the BMS Log Page, it can
avoid placing data in suspect locations on the media. Unreadable and recovered error sites will be logged or
reallocated per ARRE/AWRE settings.
With BMS, the host system can consume less power and system overhead by only checking BMS status and
results rather than tying up the bus and consuming power in the process of host-i nitiated media scan ning activity.
Since the background scan functions are only done dur ing idle periods, BMS ca uses a negligible imp act to system performance. The first BMS scan for a newly manufactured drive is performed as quickly as possible to
verify the media and protect data by setting the “Start time after idle” to 5ms, all subsequent scans begin after
500ms of idle time. Other features that normally use idle time to function will function normally because BMS
functions for bursts of 800ms and then suspends activity for 100ms to allow other background functions to
operate.
BMS interrupts immediately to service host commands from the interface bus while performing reads. BMS will
complete any BMS-initiated error recovery prior to returning to service host-initiated commands. Overhead
associated with a return to host-servicing activity from BMS only impacts the first command that interrupted
BMS, this results in a typical delay of about 1 ms.
10.5Media Pre-Scan
Media Pre-Scan is a feature that allows the drive to repair media errors that would otherwise have been found
by the host system during critical data accesses early in the drive’s life. The default setting for Media Pre-Scan
is enabled on standard products. Media Pre-Scan checks each write command to determine if the destination
LBAs have been scanned by BMS. If the LBAs have been verified, the drive proceeds with the normal write
command. If the LBAs have not been verified by BMS, Pre-Scan will convert the write to a write verify to certify
that the data was properly written to the disc.
Note.During Pre-Scan write verify commands, write performance may decrease by 50% until Pre-Scan
completes. Write performance testing shou ld be performed after Pre-Scan is complete. Th is may
be checked by reading the BMS status.
To expedite the scan of the full pack and subsequently exit from the Pre-Scan period, BMS will begin scanning
immediately when the drive goes to idle during the Pre-Scan period. In the event that the drive is in a high
transaction traffic environment and is unable to complete a BMS scan within 24 power on hours BMS will disable Pre-Scan to restore full performance to the system.
10.6Deferred Auto-Reallocation
Deferred Auto-Reallocation (DAR) simplifies reallocation algorithms at the system level by allowing the drive to
reallocate unreadable locations on a subsequent write command. Sites are marked for DAR during read operations performed by the drive. When a write command is received for an LBA marked for DAR, the auto-reallocation process is invoked and attempts to rewrite the data to the original location. If a verification of this rewrite
fails, the sector is re-mapped to a spare location.
This is in contrast to the system having to use the Reassign Command to reassign a location that was unreadable and then generate a write command to rewrite the data. DAR is most effective when AWRE and ARRE
are enabled—this is the default setting from the Seagate factory. With AWRE and ARRE disabled DAR is
unable to reallocate the failing location and will report an error sense code indicating that a write command is
being attempted to a previously failing location.
Constellation ES Series SAS Product Manual, Rev. F47
10.7Idle Read After Write
Idle Read After Write (IRAW) utilizes idle time to verify the integrity of recently written data. During idle periods,
no active system requests, the drive reads recently written data from the media and compares it to valid write
command data resident in the drives data buffer. Any sectors that fail the comp ariso n result in the invocation of
a rewrite and auto-reallocation process. The process attempts to rewrite the data to the original location. If a
verification of this rewrite fails, the sector is re-mapped to a spare location.
48Constellation ES Series SAS Product Manual, Rev. F
11.0Installation
Constellation ES disc drive installation is a plug-and-play process. There are no jumpe rs, switches , or te rm inators on the drive.
SAS drives are designed to be used in a host system that provides a SAS-compatible backplane with bays
designed to accommodate the drive. In such systems, the host system typically provides a carrier or tray into
which you need to mount the drive. Mount the drive to th e carrier o r tray provided by the host system using four
M3 x 0.5 metric screws. When tightening the screws, use a maximum torque of 4.5 in-lb +/- 0.45 in-lb. Do not
over-tighten or force the screws. You can mount the drive in any orientation.
Note.SAS drives are designed to be attached to the host system without I/O or power cables. If you
intend the use the drive in a non-backplane host system, connecting the drive using high-quality
cables is acceptable as long as the I/O cable length does not exceed 4 meters (13.1 feet).
Slide the carrier or tray into the appropriate bay in your host system using the instructions provided by the host
system. This connects the drive directly to your system’s SAS connector. The SAS connector is normally
located on a SAS backpanel. See Section 12.4.1 for additional information about these connectors.
Power is supplied through the SAS connector.
The drive is shipped from the factory low-level formatted in 512-byte logical blocks. You need to reformat the
drive only if you want to select a different logical block size.
Figure 14. Physical interface
11.1Drive orientation
The drive may be mounted in any orientation. All drive performance characterizations, however, have been
done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, which are the two preferred mounting orientations.
Constellation ES Series SAS Product Manual, Rev. F49
11.2Cooling
Above unit
Under unit
Note. Air flows in the direction shown (back to front)
or in reverse direction (front to back)
Above unit
Under unit
Note. Air flows in the direction shown or
in reverse direction (side to side)
Cabinet cooling must be designed by the customer so that the ambient temperature immediately surro unding
the drive will not exceed temperature conditions specified in Section 7.5.1, "Temperature."
The rack, cabinet, or drawer environment for the drive must provide heat removal from the electronics and
head and disc assembly (HDA). You should confirm that adequate heat removal is provided using the temperature measurement guidelines described in Section 7.5.1.
Forced air flow may be r equired to keep temper atures a t or be low the temper atures s pecified in Section 7.5.1
in which case the drive should be oriented, or air flow directed, so that the least amount of air flow resistance is
created while providing air flow to the electronics and HDA. Also, the shortest possible path between the air
inlet and exit should be chosen to minimize the travel length of air heated by the drive and other heat sources
within the rack, cabinet, or drawer environment.
If forced air is determined to be necessary, possible air-flow patterns are shown in Figure 15. The air-flow patterns are created by one or more fans, either forcing or drawing air as shown in the illustrations. Conduction,
convection, or other forced air-flow patterns are acceptable as long as the temperature measurement guidelines of Section 7.5.1 are met.
Figure 15. Air flow
50Constellation ES Series SAS Product Manual, Rev. F
11.3Drive mounting
K x X = F < 15lb = 67N
Mount the drive using the bottom or side mounting holes . If you mount the drive using the b ottom holes, ensure
that you do not physically distort the drive by attempting to mount it on a stiff, non-flat surface.
The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm) . The followin g equation and paragraph define
the allowable mounting surface stiffness:
where K is the mounting surface stiffness (units in lb/in or N/mm) and X is the out-of-plane surface distortion
(units in inches or millimeters). The out-of-plane distortion (X) is determined by defining a plane with three of
the four mounting points fixed and evaluating the out-of-plane deflection of the fourth mounting point when a
known force (F) is applied to the fourth point.
11.4Grounding
Signal ground (PCBA) and HDA ground are connected together in the drive and cannot be separated by the
user. The equipment in which the drive is mounted is connected directly to the HDA and PCBA with no electrically isolating shock mounts. If it is desired for the system chassis to not be connected to the HDA/PCBA
ground, the systems integrator or user must provide a nonconductive (electrically isolating) method of mounting the drive in the host equipment.
Increased radiated emissions may result if you do not provide the maximum surface area ground connection
between system ground and drive ground. This is the system designer’s and integrator’s responsibility.
Constellation ES Series SAS Product Manual, Rev. F51
12.0Interface requirements
This section partially describes the interface requirements as implemented on Constellation ES drives. Additional information is provided in the SAS Interface Manual (part number 100293071).
12.1SAS features
This section lists the SAS-specific features supported by Constellation ES drives.
12.1.1 task management functions
Table 6 lists the SAS task management functions supported.
Table 7 lists the SAS response codes returned for task management functions supported.
Table 7: Task management response codes
Function nameResponse code
Function complete00
Invalid frame02
Function not supported04
Function failed05
Function succeeded08
Invalid logical unit09
52Constellation ES Series SAS Product Manual, Rev. F
12.2Dual port support
Constellation ES SAS drives have two independent ports. These ports may be connected in the same or different SCSI domains. Each drive port has a unique SAS address.
The two ports have the capability of independent port clocking (e.g. both ports can run at 6Gb/s or the first port
can run at 6Gb/s while the second port runs at 3Gb/s. The supported link rates are 1.5, 3.0, or 6.0 Gb/s.
Subject to buffer availability, the Constellation ES drives support:
• Concurrent port transfers—The drive supports receiving COMMAND, TASK management transfers on both
ports at the same time.
• Full duplex—The drive supports sending XFER_RDY, DATA and RESPONSE transfers while receiving
frames on both ports.
Constellation ES Series SAS Product Manual, Rev. F53
12.3SCSI commands supported
Table 8 lists the SCSI commands supported by Constellation ES drives.
Table 8: Supported commands
Command nameCommand codeSupported
Change Definition40hN
Compare39hN
Copy18hN
Copy and Verify3AhN
Format Unit [1]04hY
DPRY bit supportedN
DCRT bit supportedY
STPF bit supportedY
IP bit supportedY
DSP bit supportedY
IMMED bit supportedY
VS (vendor specific)N
Inquiry12hY
Date Code page (C1h)Y
Device Behavior page (C3h)Y
Firmware Numbers page (C0h)Y
Implemented Operating Def page (81h)Y
Jumper Settings page (C2h)Y
Supported Vital Product Data page (00h)Y
Unit Serial Number page (80h)Y
Lock-unlock cache36hN
Log Select4ChY
PCR bitY
DU bitN
DS bitY
TSD bitY
ETC bitN
TMC bitN
LP bitN
Protocol-specific Log Page for SAS (18h)Y
Log Sense4DhY
Application Client Log page (0Fh)Y
Buffer Over-run/Under-run page (01h)N
Cache Statistics page (37h)Y
Factory Log page (3Eh)Y
Information Exceptions Log page (2Fh)N
54Constellation ES Series SAS Product Manual, Rev. F
Table 8: Supported commands
Command nameCommand codeSupported
Last n Deferred Errors or Asynchronous Events page (0Bh)N
Last n Error Events page (07h)N
Non-medium Error page (06h)Y
Pages Supported list (00h)Y
Read Error Counter page (03h)Y
Read Reverse Error Counter page (04h)N
Self-test Results page (10h)Y
Start-stop Cycle Counter page (0Eh)Y
Temperature page (0Dh)Y
Verify Error Counter page (05h)Y
Write error counter page (02h)Y
Mode Select (same pages as Mode Sense 1Ah)15hY [2]
Mode Select (10) (same pages as Mode Sense 1Ah)55hY
Mode Sense1AhY [2]
Caching Parameters page (08h)Y
Control Mode page (0Ah)Y
Disconnect/Reconnect (02h)Y
Error Recovery page (01h)Y
Format page (03h)Y
Information Exceptions Control page (1Ch)Y
Notch and Partition Page (0Ch)N
Protocol-Specific Port page (19h)Y
Power Condition page (1Ah)Y
Rigid Disc Drive Geometry page (04h)Y
Unit Attention page (00h)Y
Verify Error Recovery page (07h)Y
Xor Control page (10h)N
Mode Sense (10) (same pages as Mode Sense 1Ah)5AhY
Persistent Reserve In5EhY
Persistent Reserve Out5FhY
Prefetch34hN
Read (6)08hY
Read (10)28hY
DPO bit supportedY
FUA bit supportedY
Read (12)A8hN
Read (16)88hY
Read (32)7Fh/0009hN
Read Buffer (modes 0, 2, 3, Ah and Bh supported)3ChY (non-SED drives only)
Constellation ES Series SAS Product Manual, Rev. F55
Table 8: Supported commands
Command nameCommand codeSupported
Read Capacity (10)25hY
Read Capacity (16)9Eh/10hY
Read Defect Data (10)37hY
Read Defect Data (12)B7hY
Read Long3EhY (non-SED drives only)
Read Long (16)9Eh/11hY
Reassign Blocks07hY
Receive Diagnostic Results1ChY
Supported Diagnostics pages (00h)Y
Translate page (40h)Y
Release17hY
Release (10)57hY
Report LUNsA0hY
Request Sense03hY
Actual Retry Count bytesY
Extended SenseY
Field Pointer bytesY
Reserve16hY
3rd Party ReserveY
Extent ReservationN
Reserve (10)56hY
3rd Party ReserveY
Extent ReservationN
Rezero Unit01hY
Search Data Equal31hN
Search Data High30hN
Search Data Low32hN
Security Protocol InA2hY (SED models only)
Security Protocol OutB5hY (SED models only)
Seek (6)0BhY
Seek (10)2BhY
Send Diagnostics1DhY
Supported Diagnostics pages (00h)Y
Translate page (40h)Y
Set Limits33hN
Star t Unit/Stop Unit (spindle ceases rotating)1BhY
Synchronize Cache35hY
Synchronize Cache (16)91hY
Test Unit Ready00hY
56Constellation ES Series SAS Product Manual, Rev. F
Table 8: Supported commands
Command nameCommand codeSupported
Verify (1 0)2 FhY
BYTCHK bitY
Verify (1 2)AFhN
Verify (1 6)AFhY
Verify (32)7Fh/000AhN
Write (6)0AhY
Write (10)2AhY
DPO bitY
FUA bitY
Write (12)AAhN
Write (16)8AhY
Write (32)7Fh/000BhN
Write and Verify (10)2EhY
DPO bitY
Write and Verify (12)AEhN
Write and Verify (16)8EhY
Write and Verify (32)7Fh/000ChN
Write Buffer (modes 0, 2, supported)3BhY (non-SED drives only)
Write Buffer3Bh
Firmware Download option (modes 5, 7, Ah and Bh) [3]Y (non-SED drives only)
Firmware Download option (modes 4, 5, 7)Y (SED drives only)
Write Long (10)3FhY
Write Long (16)9Fh/11hY
Write Same (10)41hY
PBdataN
LBdataN
Write Same (16)93hY
Write Same (32)7Fh/000DhN
XDRead52hN
XDWrite50hN
XPWrite51hN
[1]Constellation ES drives can format to 512, 520, 524 or 528 bytes per logical block.
[2]Warning. Power loss during flash programming can result in firmware corruption. This usually makes the
drive inoperable.
[3]Reference Mode Sense command 1Ah for mode pages supported.
[4]Y = Yes. Command is supported.
N = No. Command is not supported.
A = Support is available on special request.
Constellation ES Series SAS Product Manual, Rev. F57
12.3.1Inquiry data
Table 9 lists the Inquiry command data that the drive should return to the initiator per the format given in the
SAS Interface Manual.
*Copyright year (changes with actual year).
**SCSI Revision support. See the appropriate SPC release documentation for definitions.
PP 10 = Inquiry data for an Inquiry command received on Port A.
30 = Inquiry data for an Inquiry command received on Port B.
R# Four ASCII digits representing the last four digits of the product firmware release number.
S#Eight ASCII digits representing the eight
[ ]Bytes 16 through 26 reflect model of drive. The table above shows the hex values for Model ST3200
Refer to the values below for the values of bytes 16 through 26 of your particular model:
ST32000444SS53543332 3030303434345353
ST32000445SS53543332 3030303434355353
ST32000446SS53543332 3030303434365353
ST31000424SS53543331 3030303432345353
ST31000425SS53543331 3030303432355353
ST31000426SS53543331 3030303432365353
ST3500414SS5354333530303431345353
ST3500415SS5354333530303431355353
ST3500416SS5354333530303431355353
Product ID
notice
digits of the product serial number.
0444SS.
12.3.2Mode Sense data
The Mode Sense command provides a way for the drive to report its operating parameters to the initiator. The
drive maintains four sets of mode parameters:
1. Default values
Default values are hard-coded in the drive firmware stor
ed in flash E-PROM (nonvolatile memory) on the
drive’s PCB. These default values can be changed only by downloading a complete set of new firmware
into the flash E-PROM. An initiator can request and receive from the drive a list of default values and use
those in a Mode Select command to set up new current and saved values, where the values are changeable.
2. Saved values
58Constellation ES Series SAS Product Manual, Rev. F
Saved values are stored on the drive’s media using a Mode Select command. Only parameter values that
are allowed to be changed can be changed by this method. Parameters in the saved values list that are not
changeable by the Mode Select command get their values from default values storage.
When power is applied to the drive, it takes saved values from the media and stores them as current values in volatile memory. It is not possible to change the current values (or the saved values) with a Mode
Select command before the drive achieves operating speed and is “r ead y.” An attempt to do so results in a
“Check Condition” status.
On drives requiring unique saved values, the required unique saved values are stored into the saved values storage location on the media prior to shipping the drive. Some drives may have unique firmware with
unique default values also.
On standard OEM drives, the saved values are taken from the default values list and stored into the saved
values storage location on the media prior to shipping.
3. Current values
Current values are volatile values being used by the drive to control its operation. A Mode Select command
can be used to change the values identified as changeable values. Originally, current values are installed
from saved or default values after a power on reset, hard reset, or Bus Device Reset message.
4. Changeable values
Changeable values form a bit mask, stored in nonvolatile memory, that dictates which of the current values
and saved values can be changed by a Mode Select command. A one (1) indicates the value can be
changed. A zero (0) indicates the value is not changeable. For example, in Table
81, in the row entitled “CHG.” These are hex numbers representing the changeable values for Mode page
81. Note in columns 5 and 6 (bytes 04 and 05), there is 00h which indicates that in bytes 04 and 05 none of
the bits are changeable. Note also that bytes 06, 07, 09, 10, and 11 are not changeable, because those
fields are all zeros. In byte 02, hex value FF equates to the binary pattern 11111111. If there is a zero in any
bit position in the field, it means t hat bit is not changeable. Since all of the bits in byte 02 are ones, all of
these bits are changeable.
The changeable values list can only be changed by downloading new firmware into the flash E-PROM.
10, refer to Mode page
Note.Because there are often several dif fere nt versions of drive contro l firmware in the tot al population of
drives in the field, the Mode Sense values given in the following tables may not exactly match those
of some drives.
The following tables list the values of the data bytes returned by the d rive in response to the Mode Sense command pages for SCSI implementation (see the SAS Interface Manual ).
DEF = Default value. Standard OEM drives are shipped configured this way.
CHG = Changeable bits; indicates if default value is changeable.
Constellation ES Series SAS Product Manual, Rev. F59
Table 10: Mode Sense data changeable and default values for 2TB drives
62Constellation ES Series SAS Product Manual, Rev. F
12.4Miscellaneous operating features and conditions
Table 13 lists various features and conditions. A “Y” in the support column indicates the feature or condition is
supported. An “N” in the support column indicates the feature or condition is not supported.
Table 13: Miscellaneous features
SupportedFeature or condition
NAutomatic contingent allegiance
NAsynchronous event notification
NSynchronized (locked) spindle operation
YSegmented caching
NZero latency read
YQueue tagging (up to 64 queue tags supported)
YDeferred error handling
YParameter rounding (controlled by Round bit in Mode Select page 0)
YReporting actual retry count in Extended Sense bytes 15, 16, and 17
NAdaptive caching
YSMP = 1 in Mode Select command needed to save RPL and rotational offset bytes
Table 14: Miscellaneous status
SupportedStatus
YGood
YCheck condition
YCondition met/good
YBusy
YIntermediate/good
YIntermediate/condition met/good
YReservation conflict
YTask set full
NACA active
NACA active, faulted initiator
Constellation ES Series SAS Product Manual, Rev. F63
12.4.1SAS physical interface
Figure 16 shows the location of the SAS device connector J1. Figures 17 and 18 provide the dimensions of the
SAS connector.
Details of the physical, electrical, and logical characteristics are provided within this section. The operational
aspects of Seagate’s SAS drives are provided in the SAS Interface Manual.
Figure 16. Physical interface
64Constellation ES Series SAS Product Manual, Rev. F
C OF DATUM B
L
5.08
1.27 (6X)
1.27 (14X)
15.875
0.35MIN
15.875
33.43 0.05
B
4.90 0.08
0.84 0.05 (22X)
0.15 B
P15
P1
S7
S1
SEE Detail1
0.30 0.05 (4X)
4.00 0.08
0.15 D
0.30 0.05 (2X)
41.13 0.15
B
B
C
C
A
A
0.20
B
42.73 REF.
C OF DATUM D
L
1.10
R0.30 0.08 (4X)
2.00 (3X)
5.08
0.45 0.03 (7X)
0.10 M E
4.65
0.80 (6X)
7.625.92
0.52 0.08 x 45
Figure 17. SAS device plug dimensions
Constellation ES Series SAS Product Manual, Rev. F65
6.10
Detail A
0.30 0.05 x 45 (5X)
0.40 0.05 X 45 (3X)
CORING ALLOWED
IN THIS AREA.
2.25 0.05
4.85 0.05
0.10
B
E
S14
S8
4.40 0.15
SEE Detail 2
3.90 0.15
SECTION A - A
SECTION C - C
A
0.35 0.05
45
R0.30 0.08
C
1.95 0.08
0.08 0.05
1.23 0.05
0.08 0.05
Detail 2
CONTACT SURFACE FLUSH
TO DATUM A 0.03
65
30
1.90 0.08
SECTION B - B
2.40 0.08
0.10 A
D
Figure 18. SAS device plug dimensions (detail)
66Constellation ES Series SAS Product Manual, Rev. F
12.4.2Physical characteristics
This section defines physical interface connector.
12.4.3Connector requirements
Contact your preferred connector manufacturer for mating part information. Part numbers for SAS connectors
will be provided in a future revision of this publication when production parts are available from major connector manufacturers.
The SAS device connector is illustrated in Figures 17 and 18.
12.4.4Electrical description
SAS drives use the device connector for:
• DC power
• SAS interface
• Activity LED
This connector is designed to either plug dir
ectly into a backpanel or accept cables.
12.4.5Pin descriptions
This section provides a pin-out of the SAS device and a description of the functions provided by the pins.
Table 15: SAS pin descriptions
PinSignal nameSignal typePinSignal nameSignal type
S1Port A GroundP1*NC (reserved 3.3Volts)
S2*+Port A_inD iff. input pairP2*NC (reserved 3.3Volts)
S3*-Port A_inP3NC (reserved 3.3Volts)
S4Port A GroundP4Ground
S5*-Port A_outDiff output pairP5Ground
S6*+Port A_outP6Ground
S7Port A GroundP75 Volts charge
S8Port B GroundP8*5 Volts
S9*+Port B_inDiff. input pairP9*5 Volts
S10*-Port B_inP10Ground
S11Port A GroundP11*Ready LEDOpen collector out
S12*-Port B_outDiff output pairP12Ground
S13*+Port B_outP1312 Volts charge
S14Port B GroundP14*12 Volts
P15*12 Volts
* - Short pin to support hot plugging
NC - No connection in the drive.
Constellation ES Series SAS Product Manual, Rev. F67
12.4.6SAS transmitters an d re ce ivers
Receiver
Differential
Transfer Medium
.01
.01
100100
Transmitter
RX
RY
TX
TY
A typical SAS differential copper transmitter and receiver pair is shown in Figure 19. The receiver is AC coupling to eliminate ground shift noise.
Figure 19. SAS transmitters and receivers
12.4.7Power
The drive receives power (+5 volts and +12 volts) through the SAS device connector.
Three +12 volt pins provide power to the drive, 2 short and 1 long. The current return for the +12 volt power
supply is through the common ground pins. The supply current and return current must be distributed as
evenly as possible among the pins.
Three +5 volt pins provide power to the drive , 2 short and 1 long. The current return for the +5 volt power supply is through the common ground pins. The supply curre nt and re turn curr ent must be di stributed as evenly as
possible among the pins.
Current to the drive through the long power pins may be limited by the system to reduce inrush current to the
drive during hot plugging.
12.5Signal characteristics
This section describes the electrical signal characteristics of the drive’s input and output signals. See Table 15
for signal type and signal name information.
12.5.1Ready LED Out
The Ready LED Out signal is driven by the drive as indicated in Table 16.
Table 16: Ready LED Out conditions
Normal command activityLED status
Ready LED Meaning bit mode page 19h
Spun down and no activityOffOff
Spun down and activity (command executing)OnOn
Spun up and no activityOnOff
Spun up and activity (command executing)OffOn
Spinning up or downBlinks steadily
(50% on and 50% off, 0.5 seconds on and off for 0.5 seconds)
01
Format in progress, each cylinder changeToggles on/off
68Constellation ES Series SAS Product Manual, Rev. F
The Ready LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the
proper +3.3 volt supply through an appropriate current limiting resistor. The LED and the current limiting resistor are external to the drive. See Table 17 for the output characteristics of the LED drive signals.
Table 17: LED drive signal
StateTest conditionOutput voltage
LED off, high0 V
LED on, lowI
≤ VOH ≤ 3.6 V-100 µA < I
= 15 mA0 ≤ VOL ≤ 0.225 V
OL
< 100 µA
OH
12.5.2Differential signals
The drive SAS differential signals comply with the intra-enclosure (internal connector) requirements of the SAS
standard.
Table 18 defines the general interface characteristics.
Seagate SAS-2 drives are entirely compatible with the latest SAS-2 Specification (T10/1760-D) Revision 16.
The most important characteristic of the SAS-2 drive at 6Gb/s is that the receiver is capable of adapting the
equalizer to optimize the receive margins. The SAS-2 drive has two types of equalizers:
1. A Decision Feedback Equalizer (DFE) which utilizes the standard SAS-2 training pattern transmitted dur-
ing the SNW-3 training gap. The DFE circuit can derive an optimal equalization characteristic to compensate for many of the receive losses in the system.
2. A Feed Forward Equalizer (FFE) op timized to provide balanced receive margins over a range of channels
bounded by the best and worst case channels as defined by the relevant ANSI standard.
12.7Additional information
Please contact your Seagate representative for SAS electrical details, if required.
For more information about the Phy, Link, Transport, and Applications layers of the SAS interface, refer to the
Seagate SAS Interface Manual, part number 100293071.
For more information about the SCSI commands used by Seagate SAS drives, refer to the Seagate SCSI
Commands Reference Manual, part number 100293068.
Constellation ES Series SAS Product Manual, Rev. F69
70Constellation ES Series SAS Product Manual, Rev. F
Index
Numerics
12 volt
pins 68
5 volt pins 68
6 Gbps 69
A
abort task set function 52
AC coupling 68
AC power requirements 22
ACA active status 63
ACA active, faulted initiator status 63
acoustics 39
active LED Out signal 68
actuator 8
assembly design 6
adaptive caching 63
Admin SP 42
AES-128 data encryption 42
air cleanliness 39
air flow 50
illustrated 50
air inlet 50
altitude 37
ambient 36
ambient temperature 50
ANSI documents
SCSI 5
Serial Attached SCSI 5
asynchronous event notification 63
audible noise 3
Australian C-Tick 4
auto write and read reallocation
programmable 7
automatic contingent allegiance 63
average idle current 23, 24, 25
average rotational latency 10
B
Background Media Scan 47
backpanel 67
Band 0 43
BandMasterX 43
BMS 47
BSMI 4
buffer
data 7
space 12
busy status 63
bytes per surface 10
bytes per track 10
C
cache operation 12
cache segments 12
caching write data 13
Canadian Department of Communications 3
capacity
unformatted 10
CBC 42
CE Marking 4
check condition status 63
Cipher Block Chaining 42
class B limit 3
clear ACA function 52
clear task set function 52
commands supported 54
condensation 36
condition met/good status 63
connector
description of connector 67
signal characteristics 68
specifications 21
electromagnetic compatibility 3
Electromagnetic Compatibility (EMC) 4
Electromagnetic Compatibility control Regulation 4
Electromagnetic compliance for the European Union
maintenance 14
Makers Secure ID 42
maximum delayed motor start 23, 24, 25
maximum start current 23, 24, 25
mean time between failure. See MTBF
media description 7
Media Pre-Scan 47
minimum sector interleave 11
miscellaneous feature support
Adaptive caching 63
Asynchronous event notification 63
Automatic contingent allegiance 63
Deferred error handling 63
Parameter rounding 63
Queue tagging 63
Reporting actual retry count 63
Segmented caching 63
SMP = 1 in Mode Select command 63
Synchronized (locked) spindle operation 63
Zero latency read 63
miscellaneous status support
ACA active 63
ACA active, faulted initiator 63
Busy 63
Check condition 63
Condition met/good 63
Good 63
Intermediate/condition met/good 63
Intermediate/good 63
Reservation conflict 63
Task set full 63
miscorrected media data 14
Mode sense
sequencing 26
Power Condition mode page 21
power distribution 3
power management 21
PowerChoice 21
PowerChoice reports 22
PowerCycle 43
prefetch/multi-segmented cache control 12
preventive maintenance 14
protection of data at rest 42
Q
queue tagging 63
Constellation ES Series SAS Product Manual, Rev. F73
R
radio interference regulations 3
Random number generator 43
RCD bit 12
read error rates 14, 45
read/write data heads 10
receivers 68
recommended mounting 38
Recoverable Errors 14
recovered media data 14
reference
documents 5
relative humidity 36
reliability 8
specifications 14
reliability and service 15
repair and return information 20
reporting actual retry count 63
reservation conflict status 63
resonance 37
return information 20
RNG 43
RoHS 5
rotation speed 10
shipping 20
shipping container 36
shock 37
and vibration 37
shock mount 51
SID 42
signal
characteristics 68
single-unit shipping pack kit 9
SMART 8, 16
SMP = 1 in Mode Select command 63
SNW-3 training gap 69
standards 3
Standby1 21
Standby2 21
START STOP UNIT command 21
start/stop time 11
support services 1
surface stiffness
allowable for non-flat surface 51
switches 49
synchronized spindle
operation 63
system chassis 51
S
safety 3
SAS
interface 67
physical interface 64
task management functions 52
SAS documents 5
SAS Interface Manual 3, 5
SAS-2 specification compliance 69
SCSI interface
commands supported 54
Secure ID 42
security partitions 42
Security Protocol In 42
Security Protocol Out 42
seek error
defined 15
rate 14
seek performance characteristics 10
seek time
average typical 10
full stroke typical 10
single track typical 10
segmented caching 63
self-encrypting drives 42
Self-Monitoring Analysis and Reporting Technology
8, 16
Serial Attached SCSI (SAS) Interface Manual 2
shielding 3
T
Taiwanese BSMI 4
task management functions 52
Abort task set 52
Clear ACA 52
Clear task set 52
terminate task 52
task management response codes 52
Function complete 00 52
Function not supported 05 52
Function reject 04 52
task set full status 63
TCG 42
technical support services 1
temperature 36, 50
limits 36
non-operating 36
regulation 3
See also cooling
terminate task function 52
terminators 49
tracks per inch 10
tracks per surface 10
transmitters 68
transporting the drive 20
Trusted Computing Group 42
U
unformatted 8
74Constellation ES Series SAS Product Manual, Rev. F
Unrecoverable Errors 14
unrecovered media data 14
V
vibration 37, 38, 39
W
warranty 20
Z
zero latency read 63
Constellation ES Series SAS Product Manual, Rev. F75
76Constellation ES Series SAS Product Manual, Rev. F
Seagate Technology LLC
920 Disc Drive, Scotts Valley, California 95066-4544, USA
Publication Number: 100602414, Rev. F
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