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

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.

The following figure shows the adapter.

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 require to be in the same enclosure. For higher availability, place adapters in separate enclosures. See the PCI adapter placement 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

For the maximum adapters supported, see the PCI adapter placement topic collection for your system.

Attributes provided

• Eight physical links by way of two external x4 SAS ports provide 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)

For details about slot priorities and placement rules, see the PCI adapter placement topic collection for your system.

Operating system or partition requirements

If you are installing a new feature, ensure that you have the software that is required to support the new feature and that you determine whether there are any prerequisites for this feature and attaching devices. To check for the prerequisites, see IBM Prerequisite website .