Learn about the specifications and operating system requirements
for the 5902 adapter.
Overview
The PCI-X DDR Dual
–x4 Port SAS RAID Adapter is a long-form factor adapter for high-performance,
serial-attached SCSI (SAS) applications. FC 5902 is always to be used
in a high availability, multi-initiator RAID configuration using two
adapters in dual-controller mode. Two 5902 adapters provide for mirrored-write
cache data and mirrored-RAID parity footprints between the two adapters.
If the 5902 pairing is broken, then write cache is disabled. With
correct cabling, multiple wide ports are used to provide redundant
paths to each dual port SAS disk. The adapter manages SAS path redundancy
and path switching should a SAS failure occur. The adapter is a 64
bit, 3.3 V, bootable SAS adapter that supports RAID levels 0, 5, 6,
and 10. The adapter pairs are used primarily with EXP 12S SAS disk
expansion drawers, FC 5886, but can also be connected to the internal
disk drives in the system unit using the appropriate split disk backplane
feature and cabling.
This adapter does
not support solid state drives (SSDs). For more information about
SSDs, see the topic Installing and configuring solid state
drives.
Figure 1. PCI-X DDR Dual
–x4 Port SAS RAID Adapter
Specifications
- Item
- Description
- Adapter FRU number
- 44V5194 (Designed to comply with RoHS requirement.)
- Battery FRU number
- 74Y9340 (Designed to comply with RoHS requirement.)
- I/O bus architecture
- PCI-X DDR
- Slot requirement
- One long, 64 bit, 3.3 V, Peripheral Component Interconnect-X (PCI-X)
slot for each adapter.
- Adapters are installed in pairs.
- Adapter pairs do not need to be in the same enclosure. For higher
availability, place adapters in separate enclosures. See the PCI adapter placement for machine types 82xx and 91xx for
supported placement rules.
- Cables
- SAS device attachment requires specific cables
that are provided with the subsystem or device features being attached. Special
cabling is required for multi-initiator and high availability configurations. See Serial
attached SCSI cable planning.
- Voltage
- 3.3V
- Form factor
- Long
- Maximum number
- Refer to the PCI adapter placement for machine types 82xx and 91xx.
- Attributes provided
- Eight physical links by way of two external x4 SAS ports provides
attachment of SAS disk enclosures only
- Supports up to 48 SAS disks when configured with four FC 5886
EXP 12S disk expansion drawers
- Removable media devices are not supported
- SAS Serial SCSI Protocol (SSP), and Serial Management Protocol
(SMP)
- 175 MB of non volatile fast write cache
- RAID 0, 5, 6, 10
- Concurrent firmware update
- 440 - 500 Mhz PowerPC® (PPC)
Operating system or partition requirements
This
adapter is supported for the following operating systems:
- AIX® Version 6.1 with the 6100-01 Technology Level, or
later
- AIX 5L™ Version 5.3 with the 5300-08 Technology Level, or
later
- Red Hat Enterprise Linux version 4, with update 7,
or later
- Red Hat Enterprise Linux version 5, with update 2,
or later
- SUSE Linux Enterprise Server
10, with service pack 2, or later
This adapter requires the following drivers:
- AIX: devices.pci.1410bd02
device driver package
- Linux:
- iprutils version 2.2.8 and ipr driver version 2.0.11.6 (or newer)
for RHEL4 kernels
- iprutils version 2.2.8 and ipr driver version 2.2.0.2 (or newer)
for RHEL5 kernels
- iprutils version 2.2.8 and ipr driver version 2.2.0.2 (or newer)
for SLES10 kernels
If
you are installing a new feature, ensure that you have the software
required to support the new feature and that you determine if there
are any existing prerequisites. To do this, use
the IBM® Prerequisite Web site
at http://www-912.ibm.com/e_dir/eServerPrereq.nsf .
POWER5 restrictions
When
the feature is used in a POWER5 based system configuration, the following
restrictions apply:
- A maximum of two 5886 EXP 12S Expansion drawers can be attached
per pair of controllers with one on each port and no cascading.
- AIX and Linux support only.
- AIX and Linux load source capability is not provided.