subscribe iconSubscribe to this information

PCI-X DDR Dual –x4 Port SAS RAID Adapter (FC 5902; CCIN 572B)

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.

Important: See the following topics for more information and important considerations for multi-initiator and high availability configurations: SAS RAID controllers for AIX, SAS RAID controllers for IBM i, or SAS RAID controllers for Linux. See also Important partitioning considerations with dual-slot and multiadapter configurations.
Figure 1. PCI-X DDR Dual –x4 Port SAS RAID Adapter
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:

This adapter requires the following drivers:

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 Link outside information center.

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.

Send feedback | Rate this page

Last updated: Fri, June 27, 2014