Learn about the specifications and operating system requirements
for the 5903 adapter.
Overview
The PCI Express (PCIe) Dual - x4 3Gb
SAS RAID Adapter supports the attachment of Serial attached SCSI (SAS)
disk and SAS solid-state drives using a pair of mini SAS 4x connectors.
The 5903 has a 380 MB write cache and a concurrently replaceable cache
battery pack. The adapter must always be installed in pairs and is
always to be used in a high availability, multi-initiator RAID configuration
using two adapters in dual-controller mode. Two 5903 adapters provide
mirrored write-cache data and mirrored RAID parity footprints between
the adapters. If the 5903 pairing is broken, then write cache is
disabled.
The
5903 supports SAS small form factor (SFF) disk drives located in a
PCIe 12X I/O Drawer or SAS disk drives located in an EXP 12S Disk
Drawer. It can also be connected to the internal disk drives in the
system unit using the appropriate split disk backplane feature and
cabling.
The adapter is a 3.3 V, PCI-e x8 bootable SAS adapter
that supports RAID levels 0, 5, 6, and 10. Some RAID level support
is operating system dependent. The adapter provides RAID 0, RAID 5,
RAID 6 and RAID 10 for the AIX® and Linux operating systems. Under
the IBM® i operating system,
mirroring and data spreading is provided by the operating system and
RAID 5 and RAID 6 is provided by the adapter.
With proper cabling
and configuration, multiple wide ports are used to provide redundant
paths to each dual port SAS drive or solid-state drive. The adapter
manages SAS path redundancy and path switching should a SAS failure
occur.
Figure 1. PCIe Dual - x4 3Gb SAS RAID Adapter
Specifications
- Item
- Description
- Adapter FRU number
- 44V8581 / 46K4735 / 46K6111 (Designed to comply with RoHS requirement.)
- Battery FRU number
- 44V7597 (Designed to comply with RoHS requirement.)
- I/O bus architecture
- PCIe x8
- Slot requirement
- One PCIe x8 slot per 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
placement rules.
- Cables
- When you attach 5886 EXP 12S Disk Drawer, at least one of the
following SAS (X) cables must be used: 3661, 3662 or 3663.
- 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
- Short
- Maximum number
- Refer to the PCI adapter placement for machine types 82xx and 91xx.
- Attributes
- 48 SAS disk dives supported when the adapter is configured with
four 5886 EXP 12S Disk Drawers
- 42 SAS disk drives supported when the adapter is configured with
a 19-inch PCIe 12X I/O Drawer and two 5886 EXP 12S Disk Drawers (18
SFF disk drives plus up to 24 SAS disk drives)
- SAS speed: 3 Gbs
- SAS Serial-SCSI Protocol (SSP) and Serial Management Protocol
(SMP) are supported
- 380 MB of non-volatile fast write cache can increase disk subsystem
performance
- Dual controller supports mirrored-write cache data and mirrored-RAID
parity footprints
- Concurrent firmware update supported
- Eight physical links from two mini SAS 4x connectors are provided
- Solid state drives (SSDs)
supported
- Concurrent replaceable cache battery pack
- Removable media devices are not supported
Operating system or partition requirements
This
adapter is supported for the following operating systems:
- AIX:
- AIX 5L™ Version 5.3 with the 5300-07 Technology Level and
Service Pack 8, or later
- AIX 5L Version 5.3 with the 5300-08 Technology Level and
Service Pack 6, or later
- AIX 5L Version 5.3 with
the 5300-09 Technology Level and Service Pack 2, or later
- AIX 5L Version 5.3 with
the 5300-10 Technology Level, or later
- AIX 6.1 and
Service Pack 8, or later
- AIX Version 6.1 with the 6100-01 Technology Level and
Service Pack 4, or later
- AIX Version 6.1 with the
6100-02 Technology Level and Service Pack 3, or later
- AIX Version 6.1 with the
6100-03 Technology Level, or later
- Linux:
- 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
- IBM i
- IBM i 6.1.1 and Resave A,
or later
This adapter requires the following drivers:
- AIX: devices.pci.1410bd02
device driver package
- Linux:
- iprutils version 2.4.1 and ipr driver version 2.0.11.6 (or newer)
for RHEL4 kernels
- iprutils version 2.4.1 and ipr driver version 2.2.0.2 (or newer)
for RHEL5 kernels
- iprutils version 2.4.1 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 .