Hewlett Packard Enterprise User's And Service Manual
Specifications and Main Features
Frequently Asked Questions
User Manual
HPE StoreEver MSL2024, MSL4048,
MSL8048, and MSL8096 Tape Libraries
User and Service Guide
Abstract
This guide provides information on installing, configuring, upgrading, and troubleshooting the tape
library. This guide is intended for system administrators and other users who need physical and
functional knowledge of the tape library.
Part Number: Q6Q62-00024a
Published: February 2018
Edition: 10
The information contained herein is subject to change without notice. The only warranties for Hewlett Packard
Enterprise products and services are set forth in the express warranty statements accompanying such
products and services. Nothing herein should be construed as constituting an additional warranty. Hewlett
Packard Enterprise shall not be liable for technical or editorial errors or omissions contained herein.
Confidential computer software. Valid license from Hewlett Packard Enterprise required for possession, use,
or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software
Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under
vendor's standard commercial license.
Links to third-party websites take you outside the Hewlett Packard Enterprise website. Hewlett Packard
Enterprise has no control over and is not responsible for information outside the Hewlett Packard Enterprise
website.
Acknowledgments
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8Contents
Features
The HPE StoreEver MSL2024, MSL4048, MSL8048, and MSL8096 Tape Libraries provide compact, highcapacity, low-cost solutions for simple, unattended data backup. This unique design houses up to 12 tape
cartridges for each U of height. Tape cartridges can be accessed through removable magazines and one or
more mailslots. Each magazine holds up to 12 tape cartridges.
The libraries are compatible with most operating systems. However, the libraries require either direct support
from the operating system or a compatible backup application to take full advantage of their many features. To
verify compatibility, see the BURA Data Agile Compatibility Matrix at
DAPRcompatibility.
The libraries are customer expandable with exchangeable tape drives. The libraries support Ultrium full-height
and half-height tape drives. To see the tape drives currently available for each tape library, see the MSL
QuickSpecs at http://www.hpe.com/storage/msl. For a list of all supported configurations, see the Business
class libraries drive matrix on the BURA Data Agile website at http://www.hpe.com/storage/DAPRcompatibility.
The library provides two user interfaces:
•Remote management interface (RMI)—With the RMI you can monitor and operate the library from a
webpage. You can access most library functions from the RMI. See The remote management interface(RMI) on page 57.
•Operator control panel (OCP)—With the OCP you can monitor and operate the library from the front panel.
http://www.hpe.com/storage/
◦MSL2024: See Using the MSL2024 OCP on page 94.
◦MSL4048, MSL8048 and MSL8096: See Using the MSL4048, MSL8048, and MSL8096 OCP on page
122.
MSL2024 front panel
1. Power button2. Magazine, mailslot location
3. Front panel LEDs4. Front panel LCD screen
5. Control buttons6. Air vents
7. Magazines
The OCP includes four LEDs that indicate system status information.
Features9
Figure 1: OCP LEDs
1.GreenReady. Illuminated when power is on. Blinking when there is tape drive or robotics
activity.
2.AmberClean. Illuminated when the tape drive has determined that a cleaning cartridge should
be used. Cleaning is only necessary when the device directs you to do so. Additional
cleaning is not necessary.
3.AmberAttention. Illuminated if the device has detected a condition that requires attention by the
operator.
4.AmberError. Illuminated if an unrecoverable error occurs. A corresponding error message
displays on the LCD screen.
For OCP functions, see Using the MSL2024 OCP on page 94.
MSL4048 front panel
The front panel provides access to the power button, OCP, left and right magazines, LEDs, and the mailslot.
1. Power button2. Magazine, mailslot location
3. Front panel LEDs4. Front panel LCD screen
5. Control buttons6. Air vents
7. Magazines
The OCP includes four LEDs that indicate system status information.
10 MSL4048 front panel
Figure 2: OCP LEDs
1.GreenReady. Illuminated when power is on. Blinking when there is tape drive or robotics
activity.
2.AmberClean. Illuminated when the tape drive has determined that a cleaning cartridge should
be used. Cleaning is only necessary when the device directs you to do so. Additional
cleaning is not necessary.
3.AmberAttention. Illuminated if the device has detected a condition that requires attention by the
operator.
4.AmberError. Illuminated if an unrecoverable error occurs. A corresponding error message
displays on the LCD screen.
For OCP functions, see Using the MSL4048, MSL8048, and MSL8096 OCP on page 122.
The OCP includes four LEDs that indicate system status information.
Figure 3: OCP LEDs
1.GreenReady. Illuminated when power is on. Blinking when there is tape drive or robotics
activity.
2.AmberClean. Illuminated when the tape drive has determined that a cleaning cartridge should
be used. Cleaning is only necessary when the device directs you to do so. Additional
cleaning is not necessary.
3.AmberAttention. Illuminated if the device has detected a condition that requires attention by the
operator.
4.AmberError. Illuminated if an unrecoverable error occurs. A corresponding error message
displays on the LCD screen. For more information, see The library displays errors on
page 145.
For OCP functions, see Using the MSL4048, MSL8048, and MSL8096 OCP on page 122 .
MSL2024 back panel
1. Tape drive assembly2. Fan
3. Power connector4. Magazine release hole
5. Pull-out tab containing the serial number and other
product information
6. Ethernet port
7. Serial port (Factory use only)8. Controller health status indicator
9. USB port
12 MSL2024 back panel
MSL4048 back panel
1. Tape drive assembly2. Fan3. Power connector
4. Magazine release hole5. Pull-out tab containing the serial number
and other product information
7. Serial port (Factory use
only)
8. Controller health status indicator9. USB port
MSL8048 and MSL8096 back panel
6. Ethernet port
Figure 4: MSL8084 or MSL8096 back panel overview
1. Tape drive assembly2. Fan
3. Power connector4. Magazine release hole
5. Pull-out tab containing the serial number and other
product information
7. Serial port (Factory use only)8. Controller health status indicator
9. USB port
6. Ethernet port
MSL4048 back panel13
Power supply back panel (MSL4048, MSL8048 and MSL8096)
Figure 5: Power supply LEDs
1. BlueAC power is connected.
2. YellowFan failure. The fan is running too slow or is defective.
3. GreenThe power supply is producing good power for the library.
Controller health status indicator
The controller health status indicator is a green LED that pulses on and off in approximately one second
cycles during normal operation. The LED is on the back panel in the lower right corner.
Figure 6: Controller health status indicator location
1. Controller health status LED
14 Power supply back panel (MSL4048, MSL8048 and MSL8096)
Tape drive back panels
1234
1234
LTO-4 and LTO-5 full-height FC tape drive back panels
LTO-5 half-height and LTO-6 FC tape drive back panels
1. Magazine release hole
2. Fan
3. FC port A
4. FC port B (when present)
5. Tape drive Ethernet port (when present)
6. Tape drive power indicator
1. Tape drive Ethernet port
2. FC port A
3. FC port B (LTO-6)
4. Tape drive power LED,
green
LTO-7 and LTO-8 FC tape drive back panels
1. Tape drive Ethernet port
2. FC port A
3. FC port B
4. Tape drive power LED,
green
Tape drive back panels15
LTO-4, LTO-5, and LTO-6 SAS tape drive back panels
1234
1234
LTO-7 and LTO-8 SAS tape drive back panels
1. Tape drive Ethernet port
2. SAS port A
3. SAS port B (LTO-6)
4. Tape drive power LED,
green
1. Tape drive Ethernet port
2. SAS port A
3. SAS port B
4. Tape drive power LED,
green
Parallel SCSI tape drive back panel
Tape drive power indicator
Each tape drive has a green power indicator LED, which indicates that the tape drive is powered on.
Figure 7: Tape drive power indicator
1. Tape drive power indicator
1. Magazine release hole
2. Fan
3. Parallel SCSI ports
4. Tape drive power indicator
Library options
16 Tape drive power indicator
Redundant power supply
The MSL4048, MSL8048, and MSL8096 tape libraries have a redundant power supply option. The redundant
power supply allows the library to continue operating when one power supply fails. With the redundant power
supply system, the library can monitor the status of each power supply and power supply fan. The redundant
power supply can be installed without powering off the library.
For instructions on installing the redundant power supply, see Installing a redundant power supply.
HPE StoreEver 1/8 G2 Tape Autoloader and MSL Tape Libraries Encryption Kit
The encryption kit provides secure generation and storage of encryption keys. The encryption kit can be used
with any StoreEver 1/8 G2 Tape Autoloader or MSL2024, MSL3040, MSL4048, MSL6480, MSL8048, and
MSL8096 Tape Library with at least one LTO-4 or later generation tape drive. The encryption kit cannot be
used with the MSL6000.
The encryption kit supports your manual security policies and procedures by providing secure storage for
encryption keys. Access to the key server tokens and their backup files is protected with user-specified
passwords. You will need to create processes to protect the tokens and secure the passwords.
Before enabling the encryption kit, verify that the library is running the most current firmware to ensure
compatibility between the token and library.
To use the encryption kit, insert a key server token in the USB port on the back of the library and then enable
the encryption kit and configure the token from the RMI.
IMPORTANT:
When encryption is enabled with the encryption kit, the library will not use encryption keys from other
sources, such as a key management system or application software. Disable encryption in applications
writing to the library when encryption is enabled with the encryption kit. Applications that attempt to
control encryption while encryption is enabled with the encryption kit will not be able to do so, which can
cause backups or other write operations to fail.
For information about configuring and using the encryption kit, see the encryption kit user guide, which is
available from the Hewlett Packard Enterprise Information Library at http://www.hpe.com/info/storage/
docs.
Command View TL TapeAssure
HPE Command View TL software provides a browser-based GUI for remote management and monitoring of
most Hewlett Packard Enterprise libraries. With Command View TL, you can view and analyze the
performance and health of supported tape drives and media in multiple devices at the same time. In addition,
TapeAssure displays more extensive drive and media health information than is visible in the RMI.
Command View TL software is installed on a management station. The management station can also be used
to manage HPE EML and ESL Tape Libraries. For best performance, locate the management station in the
same physical location and on the same IP subnet as the library. Command View TL software is available for
download without charge from the Hewlett Packard Enterprise website at http://www.hpe.com/storage/cvtldownload.
For information on installing and using Command View TL, see the HPE Interface Manager and CommandView TL User Guide, available from the information library: http://www.hpe.com/info/storage/docs
Command View TL support is included in all library firmware that supports LTO-5 and later generation tape
drives. To find and download the most up-to-date firmware revision, visit the Hewlett Packard Enterprise
support website at http://www.hpe.com/support/hpesc.
Redundant power supply17
LTFS Support
The HPE StoreOpen Automation application simplifies use of the Linear Tape File System (LTFS)
functionality. LTFS makes tape self-describing, file-based, and easy-to-use. The automation application
extends LTFS functionality, presenting an autoloader or library and its tape cartridges as a collection of
folders. This extension results in easy data access and management. For more information about LTFS
capabilities, see http://www.hpe.com/storage/StoreOpen.
MSL8048 upgrade license
The MSL8048 can be upgraded to the capacity of an MSL8096 with TA739A, the HPE MSL8048 48 to 96 slot
license. The license enables 48 additional storage slots, including 12 slots that can be configured as
additional mailslots. To purchase the upgrade license, contact your Hewlett Packard Enterprise sales
representative or visit the Hewlett Packard Enterprise website at http://www.hpe.com.
Use the RMI Configure > License Key screen to manage the license key.
Figure 8: RMI Configure > License Key screen
After you order the upgrade license, you can access the additional slots immediately by generating a
temporary license key. The temporary key can only be enabled once and is valid for 30 days.
NOTE:
The temporary key is intended to provide instant access to the upgrade capabilities until you receive the
permanent key. The temporary key expires after 30 days. If you do not have a permanent license key before
the temporary key expires, you will lose access to the additional storage slots when the temporary license key
expires.
When you receive the permanent license key from Hewlett Packard Enterprise, enter the key and press
Submit. The permanent license takes effect when the library is rebooted. You might need to reboot the library
to enable the additional slots.
HPE MSL Library Extender
The library extender combines two libraries to create a single extended library. Before installing the extender,
the libraries must be installed in the rack rails supplied with the libraries in adjacent rack locations, one library
above the other.
18 LTFS Support
Figure 9: Library Extender installed with two MSL4048 tape libraries
The extender occupies the lower half-height drive bay of the upper library and the top half-height drive bay of
the lower library.
The upper library controls the extended library and is called the master library. The extended library uses only
the master library OCP, USB port, and Ethernet connection.
The master library controls the lower library. The lower library OCP, USB port, and Ethernet connection are
not used by the extended library.
If you are using the encryption kit with both libraries and then install the extender, you will need to combine
the encryption keys onto a single key server token. The extended library only uses the USB port and key
server token in the master library; the USB port in the lower library is inactive. For instructions on combining
the keys onto a single token, see the encryption kit user guide. If the number of keys on the two tokens is
greater than 100, use the Number of Keys to Backup option to generate a backup file with a subset of the
keys from one of the tokens to restore to the other token.
NOTE:
Libraries that require a license to enable all slots must have all slots licensed to operate with the Library
Extender.
723+11+0
963+31+1
Total full-height drive
bays
Features19
Hardware-based encryption
The LTO-4 and later generation tape drives include hardware capable of encrypting data while writing data,
and decrypting data when reading. Hardware encryption can be used with or without compression while
maintaining the full speed and capacity of the tape drive and media.
Encryption is the process of changing data into a form that cannot be read until it is deciphered with the key
used to encrypt the data. Encryption protects the data from unauthorized access and use. LTO tape drives
use the 256-bit version of the industry-standard AES encrypting algorithm to protect your data.
To use this feature, you need:
•The 1/8 G2 & MSL Encryption Kit or a KMIP-based key server or a backup application that supports
hardware encryption.
•LTO-4 or later generation media; no encryption will be performed when writing LTO-3 and earlier
generations of tape.
Your company policy will determine when to use encryption. For example, your company could require
encryption of company confidential and financial data, but not for personal data. Company policy will also
define how to generate and manage encryption keys. Backup applications that support encryption will
generate a key for you or allow you to enter a key manually.
For information about using the encryption kit, see HPE StoreEver 1/8 G2 Tape Autoloader and MSL Tape
Libraries Encryption Kit on page 17.
KMIP-based key servers
The library supports integration with encryption key management servers using the Key Management
Interoperability Protocol (KMIP) standard. KMIP is an industry standard protocol for communications between
a key management server and an encryption system. The KMIP technical committee of the OASIS standards
body (Organization for the Advancement of Structured Information Standards) developed the KMIP
specification.
The KMIP feature allows the library to obtain encryption keys from selected KMIP-compliant key managers.
These keys can be used to encrypt data as it is written to tape. Up to six key servers can be configured for
failover purposes.
For instructions on configuring the KMIP feature, see the HPE StoreEver MSL Tape Libraries Encryption Key
Server Configuration Guide, available from the Enterprise Information Library at http://www.hpe.com/info/
storage/docs.
Key managers
To use the KMIP feature, the library must have access to a KMIP key manager. Hewlett Packard Enterprise
only supports KMIP when used with a supported key manager, listed in the compatibility matrix at http://
www.hpe.com/storage/DAPRcompatibility.
Operation
When the KMIP feature is enabled and properly configured, tape data will automatically be encrypted with
keys delivered from the KMIP key manager. Tapes are encrypted on a key-per-tape basis.
Write, and append operations: The tape drive will request a key when data is written. The library, acting as
an intermediary, can request the key manager to create a key. The library then obtains that key and delivers it
to the tape drive. A name, which is associated with the media identifier, identifies the key. The key is not
retained in the tape drive any longer than necessary to perform encryption operations.
Read operations: The tape drive will request a key. The library, acting as an intermediary, obtains the key
identifier, requests that key from the key manager, and delivers it to the tape drive. The key is not retained in
the tape drive any longer than necessary to perform decryption operations.
20 Hardware-based encryption
Licensing
The KMIP feature requires that the StoreEver MSL2024/4048/8096 KMIP license has been installed before
the feature can be enabled and configured.
Application-managed encryption
Hardware encryption is off by default and is switched on by settings in your backup application. The backup
application also generates and supplies the encryption key. Your backup application must support hardware
encryption for this feature to work. For a current list of suitable backup software, see the compatibility matrix
at: http://www.hpe.com/storage/DAPRcompatibility
NOTE:
The library can only obtain encryption keys from one source. Using the encryption kit will prevent applicationmanaged encryption.
Encryption is primarily designed to protect the media once it is offline and to prevent it being accessed from
another machine. The tape drive can read and append the encrypted media without being prompted for a key
while the machine and application that first encrypted the tape are accessing the tape.
There are two main instances when you will need to know the key:
•If you try to import the media to another machine or another instance of the backup application.
•If you are recovering your system after a disaster.
NOTE:
Encryption with keys that are generated directly from passwords or passphrases might be less secure than
encryption using truly random keys. Your application will explain the available options and methods. Refer to
the application user documentation for more information.
If you are unable to supply the key when requested to do so, no one will be able to access the encrypted
data, including support engineers.
This feature guarantees the security of your data, but also means that you must carefully manage the
encryption key used to generate the tape.
CAUTION:
Keep a record or backup of your encryption keys and store it in a secure place separate from the
computer running the backup software.
For detailed instructions about enabling encryption, see the documentation supplied with your backup
application or with the encryption kit. The documentation will also highlight any default states, for example
when copying tapes, that might need to be changed when using encrypted tapes.
Logical libraries
You can configure a tape library with multiple tape drives into logical libraries. Each logical library must
contain at least one tape drive. Each logical library is configured independently, allowing use by different
backup applications and with different backup policies. For example, one logical library could perform a
backup operation for one department while the second logical library restores data for another department.
Data cartridges in one logical library cannot be shared with other logical libraries.
If the mailslot is enabled, all logical libraries have access to the mailslot. The tape library prohibits a cartridge
that was placed in the mailslot by one logical library from being moved into another logical library. The library
allows a cartridge that was placed in the mailslot by the operator to be moved into any logical library. If
Application-managed encryption21
sharing the mailslot among logical libraries is an issue in your environment or your backup application does
not support mailslot sharing, disable the mailslot.
Each logical library has a unique serial number and World Wide Identifier (WWID), which can be found in the
RMI Identity > Library screen.
MSL2024 and MSL8048 Tape Libraries partitions
An MSL2024 tape library with two tape drives can be configured into two logical libraries. Each logical library
is assigned one tape drive and one magazine.
An MSL8048 with at least two tape drives can be configured into two logical libraries. Each logical library is
assigned at least one tape drive and two magazines.
Table 2: MSL2024 and MSL8048 Tape Libraries partitioned into two logical libraries
Tape drivesMagazines
MSL2024
MSL8048
1. Logical library 1 tape drives and magazines
2. Logical library 2 tape drives and magazines
MSL4048 and MSL8096 Tape Libraries partitions
The MSL4048 and MSL8096 Tape Libraries can be configured into two to four logical libraries, depending on
the number of tape drives installed. The MSL4048 supports up to two full-height tape drives or up to four halfheight tape drives. The MSL8096 supports up to four half-height or full-height tape drives.
Each logical library includes the tape drives in specific drive locations. If there is not a tape drive in the top
half of the library, you might need to move a tape drive. If the library only has two tape drives installed in the
bottom two drive bays, move one tape drive to the top half of the library. Power off the tape drive from the RMI
Configuration > Drive screen before moving the tape drive. For instructions on removing and replacing a
tape drive, see Replacing a tape drive on page 216.
NOTE:
The MSL4048 tape library will not operate with a full-height tape drive installed in the middle two half-height
drive bays. Only install a full-height tape drive in either the upper or lower two half-height drive bays.
22 MSL2024 and MSL8048 Tape Libraries partitions
Table 3: MSL4048 and MSL8096 Tape Libraries partitioned into two logical libraries
Tape drivesMagazines
MSL4048
MSL8096
1. Logical library 1 tape drives and magazines.
2. Logical library 2 tape drives and magazines.
NOTE:
In the MSL8096, half-height tape drives are installed in the bottom half of each drive bay.
Table 4: MSL4048 and MSL8096 tape libraries partitioned into three logical libraries
Tape drivesMagazines
MSL4048
MSL8096
Features23
1. Logical library 1 tape drive and magazines2. Logical library 2 tape drive and magazines
3. Logical library 3 tape drives and magazines.
Table 5: MSL4048 and MSL8096 Tape Libraries partitioned into four logical libraries
Tape drivesMagazines
MSL4048
MSL8096
1. Logical library 1 tape drive and magazines2. Logical library 2 tape drive and magazines
3. Logical library 3 tape drive and magazines4. Logical library 4 tape drive and magazines
Control path and data path failover
With high dependency on access to business information, safe-guarded data and limited backup windows, the
reliability of the backup hardware and software is vital. Additionally, backup operations are automated, often
run at night, and any first pass operator intervention is done remotely. To assist with these enterprise
demands, Hewlett Packard Enterprise supports data path and control path failover for MSL2024, MSL4048,
MSL8048, and MSL8096 tape libraries with LTO-5 and LTO-6 FC tape drives. Failover functionality in the
LTO-5 and LTO-6 tape drives and in the tape libraries transfers the active path and all settings to the standby
path following failures.
•Data path failover—a standby path is configured for the data path to the tape drive and activated
following link failures.
•Library control path failover—a second drive is configured to host a standby library control path that can
be activated following link failures.
For additional information about path failover technology and configuration, see the HPE StoreEver TapeLibraries LTO-5 and LTO-6 Failover User Guide, which is available from the HPE Enterprise Information
Library at http://www.hpe.com/info/storage/docs.
NOTE:
Path failover is not currently supported for LTO-7 and later generation tape drives in the MSL2024, MSL4048,
MSL8048, or MSL8096 tape libraries.
24 Control path and data path failover
Installing the tape library
Procedure
1.Plan the installation.
•
Location requirements
•FC configuration information
•SAS configuration information
•Parallel SCSI configuration information
2.Prepare the host
3.Unpack the shipping container
4.Remove the shipping lock
5.Install the library in a rack
6.Install the tabletop conversion kit
7.Install tape drives
8.Change the SCSI address (parallel SCSI drives only)
9.Connect the parallel SCSI cable
10. Connect the FC cable
11. Connect the SAS cable
12. Power on the library
13. Configure the library
14. Verify the connection
15. Label the tape cartridges
16. Verify the installation
17. Configure additional features
Location requirements
Select an open rack location with access to the host server and a power outlet. If possible, install the library in
the middle or higher part of the rack to avoid dust from the floor and to allow easy access to the mailslot and
magazines.
IMPORTANT:
The library must be mounted on the enclosed rack rails. Placing the library on a surface, such as a table
top or rack shelf, could result in library errors.
If installing the library with the library extender, determine the master and lower units, and install them in
adjacent rack locations, with the master library directly above the lower library. To install the extender, both
libraries must be installed in the rack rails.
Series, Standard Series and other HPE square-hole or round-hole racks
Rack space
requirements
Room temperature10-35º C (50-95º F) ) for the tape library. Some tape drives have a more limited
Power sourceAC power voltage: 100-127 VAC; 200-240 VAC
Weight without media MSL2024: 13.6 kg (29.9 lb) - 15.6 kg (34.3 lb)
Weight with mediaMSL2024: 18.4 kg (40.5 lb) - 20.4 kg (44.9 lb)
MSL2024: 2U
MSL4048: 4U
MSL8048 and MSL8096: 8U
temperature range when operating at high altitudes. Verify the tape drive operating
requirements before installing a tape drive in a high altitude environment
Line frequency: 50-60 Hz
Place the library near an AC outlet. The AC power cord is the main AC disconnect
device for the library and must be easily accessible at all times.
MSL4048: 18.6 kg (40.9 lb) -24.6 kg (54.1 lb)
MSL8048 and MSL8096: 44.6 kg (98.3 lb) - 46.6 kg (102.7 lb)
MSL4048: 28.2 kg (62.0 lb) - 34.2 kg (75.2 lb)
MSL8048: 54.2 kg (117.4 lb) - 56.2 kg (121.9 lb)
Air qualityPlace the library in an area with minimal sources of particulate contamination. Avoid
26Installing the tape library
MSL8096: 66.8 kg (147.2 lb) - 68.8 kg (151.7 lb)
areas near frequently used doors and walkways, stacks of supplies that collect dust,
printers, and smoke-filled rooms.
Excessive dust and debris can damage tapes and tape drives.
Connect the FC tape drive directly to the server with an HBA or indirectly through a SAN with an FC switch.
Table 8: FC drive interface speeds
LTO generationSupported speeds
LTO-3, LTO-41 Gb, 2 Gb, 4 Gb
LTO-5, LTO-6, LTO-7, LTO-82 Gb, 4 Gb, 8 Gb
Most supported tape drives have two FC ports. Only one port can be used at a time, but both ports can be
connected for path failover or with software that supports multipath. If you are using only one port, you can
use either port. Path failover is a licensed library feature.
Direct connection
The host must have a 2 Gb, 4 Gb, 8 Gb, or 16 Gb FC HBA. A 4 Gb HBA is recommended for LTO-4 tape
drives. An 8 Gb or faster HBA is recommended for LTO-5 and later generation tape drives. To verify that an
HBA is supported on your server and qualified for the tape drive, see the DAPR compatibility matrix at: http://
www.hpe.com/storage/DAPRcompatibility
A server that has FC-attached hard drives performs best with at least two FC ports. Using the same FC port
for disk and tape drive access can cause performance degradation.
SAN connection
All switches between the host and the tape drive must be of the appropriate type. A 2 Gb switch in the path
might cause performance degradation when backing up highly compressible data.
Configure zoning on the FC switch so that only the backup servers can access the tape drive. For more
information, see the switch documentation.
Cable requirements
An FC cable is required for each FC port you plan to use. The tape drive has an LC-style connector. The
maximum cable length is based on the tape drive and external cable type.
Drive typeCable type2 Gb4 Gb8 Gb
AllOM20.5 - 300 m0.5 - 150 mNot supported
LTO-5 HH*
OM3, OM40.5 - 300 m0.5 - 150 m0.5 - 50 m
Table Continued
FC connection information27
Drive typeCable type2 Gb4 Gb8 Gb
All except LTO-5 HH
* The LTO-5 Ultrium 3000 half-height drive is shown as LTO-5 HH.
OM3, OM40.5 - 500 m0.5 - 380 m0.5 - 150 m
SAS connection information
The server must have a SAS host bus adapter with an external connector.
Table 9: SAS drive interface speeds
LTO generationSupported speeds
LTO-41.5 Gb, 3 Gb
LTO-5, LTO-6, LTO-7, LTO-81.5 Gb, 3 Gb, 6 Gb
The library uses two SCSI logical unit numbers (LUNs) and requires an HBA with multiple LUN support. Most
Hewlett Packard Enterprise SAS RAID controllers support tape devices; many other SAS RAID controllers do
not support tape devices. To verify the specifications of your HBA or find a list of compatible HBAs, see the
DAPR compatibility matrix: http://www.hpe.com/storage/DAPRcompatibility
CAUTION:
Do not connect the library to a SAS RAID controller unless the DAPR compatibility matrix shows that the
controller is qualified with the library. The server might not be able to boot when the library is connected
to an unsupported SAS RAID controller.
About SAS
SAS is a computer bus technology for transferring data to and from storage devices, including disk drives and
tape drives. SAS-1, which is used for LTO-4 tape drives, is designed to transfer data at 3 Gb/s. SAS-2, which
is used for LTO-5 and later generation tape drives, is designed to transfer data at 6 Gb/s.
CAUTION:
Reliable data transfer requires high-quality cables and connections.
•Always verify that the SAS cable is rated for the data transfer speed of the HBA and tape drive.
•Do not use adapters or converters between the HBA and the tape drive. SAS signal rates require
clean connections and a minimum number of connections between the HBA and the tape drive.
•SAS cables described as "equalized" might not support 6 Gb/s data rates. Do not use equalized
cables with LTO-5 or later generation tape drives unless these cables are verified for 6 Gb/s data
rates.
•For optimal performance, only use cables of the length specified as qualified for your products. Do
not use a SAS cable longer than 6 meters.
28 SAS connection information
Cable requirements
SAS uses serial connections, with a direct connection between the host server and each of the storage
devices. This method eliminates the need to configure SCSI buses and assign SCSI IDs, as is required for
parallel SCSI devices.
Most SAS HBA ports have four SAS channels. A tape drive uses one channel, so each HBA port can support
up to four tape drives. You can use a cable with one connector on each end, but only one channel will be
used. The SAS fanout cable recommended for use with the library can connect up to four SAS tape drives to
a single SAS HBA port.
Figure 10: Example SAS fanout cable
Connectors
The host end of the cable must have the same type of connector as the HBA external SAS port.
The tape drive has a mini-SAS connector. The connector is keyed in location 4, which is the standard location
for end devices. If you use a cable other than the one recommended for use with the product, verify that it is
keyed in location 4.
CAUTION:
Mini SAS connectors are keyed. Do not force a SAS cable mini-SAS connector into the tape drive miniSAS port because it might be keyed differently.
World Wide identifiers
A unique identifier called a World Wide Name (WWN) or World Wide Identifier (WWID) identifies a SAS tape
drive. The library assigns the World Wide identifier to the drive bay. When a tape drive is replaced, the World
Wide identifier is reassigned to the new tape drive.
The operating system tracks the World Wide identifier for the drive on each HBA channel. Each of the drive
connectors on a fanout cable is associated with an HBA channel. Once a drive has been connected, keep it
on the same channel to retain the association between the HBA channel and World Wide identifier.
Parallel SCSI configuration information
The parallel SCSI libraries use the Ultra 320 SCSI LVD interface. The libraries use a separate SCSI ID for
each tape drive, with dual LUNs on the master drive SCSI ID to control the tape drive (LUN 0) and library
robotic (LUN 1). Hewlett Packard Enterprise recommends that each Ultrium tape drive has its own bus when
possible.
The parallel SCSI libraries incorporate a wide SCSI-2 or SCSI-3 low-voltage differential (LVD) SCSI bus.
Make sure that your SCSI host adapter or controller supports these standards.
Parallel SCSI configuration information29
IMPORTANT:
The libraries are NOT compatible with a high-voltage differential (HVD) SCSI bus. Do not put the library
on a narrow (50-pin) parallel SCSI bus because doing so will severely degrade performance.
If the host computer will have multiple parallel SCSI devices, you must decide how they will be configured into
one or more parallel SCSI buses.
About parallel SCSI buses
A parallel SCSI bus consists of the host bus adapter (HBA), the parallel SCSI devices, the parallel SCSI
cables, and the terminators. The HBA and devices are connected in a chain, with each device connected to
the next. The last device must have a SCSI terminator. Each device in the chain must have a unique SCSI
address (SCSI ID).
Complex devices, such as the library, assign subaddresses, called logical unit numbers (LUNs), to different
parts of the device. The HBA and operating system must support multiple LUNs, also called LUN scanning,
for the application software to operate the library. HPE Smart Array controllers, most third-party RAID
controllers, and many on-board SCSI controllers do not support multiple LUNs.
An HBA might have one or two channels, with each channel supporting one parallel SCSI bus. Check to see
how many channels the HBA has and what devices are already connected to the HBA. Some devices, such
as parallel SCSI disk drives, could be inside the server.
The devices on a parallel SCSI bus share bandwidth so be careful about which devices you put together on a
bus. Also, putting a single-ended (SE) SCSI device on the bus will slow all the devices on the bus down to SE
speed. To see what kind of parallel SCSI interface a device has, see the interface specifications for the
device.
HBA requirements
For optimum performance, place each tape drive on its own parallel SCSI bus and use a host bus adapter
that can transfer data as fast as the library can read and write. Verify that the operating system supports the
HBA. For best performance, use an Ultra 320 HBA. For current HBA compatibility information, see the
compatibility matrix at: http://www.hpe.com/storage/DAPRcompatability.
IMPORTANT:
Do not connect an LTO tape drive to an SE SCSI bus, as it severely degrades library performance. A
single-ended SCSI host bus adapter severely degrades library performance and limits cable length.
Also, if any SE devices are on the SCSI bus, all the devices on the bus slow down to SE speed,
severely degrading performance.
Multiple LUN support
The library uses a single SCSI ID and two logical unit numbers (LUN). LUN 0 controls the tape drive and LUN
1 controls the robotic. The library requires an HBA that supports multiple LUNs. If multiple LUN support is not
enabled, the host computer cannot scan beyond LUN 0 to discover the library. It just sees the tape drive.
Parallel SCSI HPE Smart Array controllers, RAID controllers, and most on-board HBAs do not support
multiple LUNs. For current HBA compatibility information, see the compatibility matrix at http://
www.hpe.com/storage/DAPRcompatability.
IMPORTANT:
The library requires an HBA that supports multiple LUNs, which is also called “LUN scanning.”
30Installing the tape library
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