EMC AX4-5, AX4-5SC, AX4-5i, AX4-5SCi, AX4-5F User Manual
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AX4-5 Series
Hardware and Operational
Overview
January 4, 2010
This overview describes the major hardware features of AX4-5 series
storage systems.
For greater clarity, the illustrations in this document show the storage-system
chassis independent of a cabinet or deskside mounting
Topics include
Storage-system components........................................................... 2
Disk and filler modules.................................................................. 5
Storage processors (SPs)................................................................. 7
Link control cards (LCCs) .............................................................. 8
Power/cooling modules ................................................................ 9
Standby power supplies (SPSs)....................................................... 10
Powerup and powerdown sequence ............................................... 11
Status lights and indicators ............................................................ 15
1
Storage-system c
omponents
The AX4-5 series s
torage system consists of rack-mountable
storage-system e
nclosures, 3.5 inches (2U) high, that contain 4 to 12
serial advanced t
echnology attachment (SATA) or serial attached SCSI
(SAS) disk drive
s.
The AX4-5 and AX4
-5SC storage systems use a Fibre Channel arbitrated
loop (FC-AL) or F
ibre Channel switch (FC-SW) as an interconnect
interface to ho
st servers. The AX4-5i and AX4-5SCi storage systems use
the Internet Sm
all Computer System Interface (iSCSI) protocol.
The AX4-5 and AX4-5SC are also called the AX4-5F and AX4-5FSC, respectively.
Models with four Fibre Channel host ports per controller are called AX4–5F8
or AX4–5FX, and AX4–5SCF4 or AX4–5FSCX. The AX4-5i and AX4-5SCi are
also called the AX4-5I and AX4-5ISC, respectively.
Navisphere® management software manages the storage systems from
any qualified workstation on a shared Ethernet LAN. Sophisticated
RAID (redundant array of independent disk) technology and data
caching prevent data loss in case of component failure. Redundant
hardware options provide levels of high availability usually restricted
to much larger (and more expensive) storage systems. Besides
economical disks, the AX4-5 series storage systems include the
following major components:
A disk-processor enclosure (DPE-AX). A DPE-AX contains one
(AX4-5SC or AX4-5SCi) or two (AX4-5 or AX4-5i) storage processors
(SPs), each with:
z One dual-inline memory module (DIMM)
z One serial port (mini DB9 connector) for service
z One 10/100/1000 Ethernet LAN port (RJ45 connector) for
management
z For the AX4-5 or AX4-5i, one serial port for connection to a
standby power supply (SPS)
z One input/output (I/O) module per SP, each with:
− For the AX4-5 or AX4-5SC, two or four 4-Gbps Fibre Channel
host ports with small form factor pluggable (SFP) connectors
2
Hardware and Operational Overview
− For the AX4-5i or AX4-5SCi, two Gigabit Ethernet (GigE)
ports
Two power supply/system cooling (power/cooling) modules
Figure 1 shows an AX4-5 DPE-AX, which has Fibre Channel I/O
modules.
FRU Label FRU Label
CL3914
Expansion DAE
SPS management
Power/cooling module
cooling fault LED
Power supply
fault LED
Power supply on
Fibre
SP service
SP management
SP fault LED
SP power LED
Figure 1
AX4-5 DPE-AX (rear view – two FC port version)
Figure 2 shows an AX4-5i DPE-AX, which has iSCSI instead of Fibre
Channel I/O modules.
FRU Label FRU Label
CL3771
iSCSI
Figure 2
AX4-5i DPE-AX (rear view)
Figure 3 shows an AX4-5SC DPE-AX with a single storage processor.
FRU Label FRU Label
CL3853
Figure 3 AX4-5SC DPE-AX (rear view — two FC port version)
Figure 4 shows an AX4-5SCi with a single storage processor.
Hardware and Operational Overview
3
FRU Label FRU Label
CL3854
Figure 4
AX4-5SCi DPE-AX (rear view)
AX4-5 and AX4-5i systems include a standby power supply (SPS); a
second SPS is optional. AX4-5 and AX4-5i systems support as many as
four optional disk array enclosures (DAE-AXs). Like the DPE-AX, each
DAE-AX includes two power/cooling modules and can contain a total
of twelve disk drives. Instead of SPs, a DAE-AX has two link control
cards (LCCs) that manage disks on a single redundant back-end bus.
You can install, upgrade, or replace all of the major storage-system
components without professional assistance.
4
Hardware and Operational Overview
Disk and filler mo
dules
Each DPE-AX inclu
des at least four hard disk drives. The first four
disks, marked 0-3
, are system disks (sometimes called vault disks) and
contain vital sof
tware specific to the physical slot they occupy in the
chassis. Do not m
ove a system disk from its assigned slot to another slot.
Remove a system d
isk only if you need to replace it because it failed.
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
SN:1234ABCD1234ABC
123 BPS
PN:123456789 REV 123
SATA
SATA
500
500
GB
GB
7.2K RPM
7.2K RPM
CL3880
Figure 5 DPE-AX syste
m(vault)disks
If a drive fails, you can replace it with another while the storage system
continues running; software rebuilds the contents of the original disk
onto its replacement.
DPE-AX and DAE-AX chassis have twelve slots for disk modules. Any
unoccupied disk module slot requires a filler module to maintain air
flow.
Disk modules
Each disk module, shown in Figure 6, consists of one disk drive in a
carrier. You can add or remove a disk module while the storage system
is powered up, but you should exercise special care when removing
drives while they are in use.
Hardware and Operational Overview
5
EMC2830
Figure 6 Disk module
Disk drives
The disk drives
are standard 3.5-inch (8.75-cm) by 1.0-inch (2.54-cm)
serial advanc
ed technology attachment (SATA) or serial attached
SCSI (SAS) dri
ves. AX4–5 systems also support 2.5–inch SAS drives
mounted in 3.5
–inch drive carriers. For a detailed list of supported
disk drives a
nd the minimum revision of the FLARE® operating
environment
(OE) that supports each disk, refer to the Disk and FLARE
OE Matrix und
er “Technical description” on the Learn page on the
storage-sy
stem support website or contact your service provider.
Drive carri
er
The disk dri
ve carrier is a plastic assembly that provides smooth,
reliable co
ntact with the enclosure slot guides and system board
connectors
. It has a handle with a latch and spring clips. The latch
holds the d
iskmoduleinplacetoensureproperconnectionwiththe
connector
s.
6
Hardware and Operational Overview
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