IBM 574E PCIe 380MB Cache Dual x4 3Gb SAS RAID Adapter

IBM 574E 44v8581 46k6111 46k4735 PCIe 380MB Cache Dual x4 3Gb SAS RAID Adapter 5903 5805

The IBM 574E PCIe 380MB Cache Dual x4 3Gb SAS RAID Adapter has 574E CCIN, 44V8581, 46K6111, 46K473 part numbers, has a short, full high form factor that supports the attachment of SAS HDD and SSD in IBM Power Systems, using a pair of mini SAS 4x connectors. The IBM 574E PCIe 380MB Cache Dual x4 3Gb SAS RAID Adapter has various part numbers such as 44v8581 46k6111 46k4735 and can have 5903 or 5805 feature code. Write cache can provide an I/O performance boost even if RAID 5/6/10 is not used. From a high level perspective, except for having a larger write cache, it is very similar to the 5902 PCI-X SAS adapter and provides a high-performance connection to SAS devices. Two 574E adapters provides for mirrored write cache data and mirrored RAID parity footprints between the adapters for superior availability. The 574E is installed in pairs allowing for redundancy of the write cache. If the 574E pairing is broken, then write cache is disabled.

The 574E RAID Adapter supports several different cache batteries, including concurrent maintainable battery packs: 74Y6124 74Y5997 42R8705 44V7597 00E5724 00E5725

The IBM 574E PCIe 380MB Cache Dual x4 3Gb SAS RAID Adapter supports SAS SFF disk drives located in a PCIe 12X I/O Drawer or SAS disk drives located in an EXP 12S Disk Drawer, and requires IBM Power AIX or Linux formatted SAS drives to be attached and RAID 0, RAID-5, RAID-6 and RAID 10 are supported. 

With proper cabling and configuration, multiple wide ports are used to provide redundant paths to each dual port SAS disk or SSD.. The adapter manages SAS path redundancy and path switching should a SAS drive failure occur. The pairing of #5903 provides a high availability I/O configuration to protect against the failure of a SAS adapter. SAS X cables attach SAS disk drives in an EXP 12S Disk Drawers. SAS #3688 cables attach SFF SAS drives in an PCIe 12X I/O Drawer. The high availability I/O configuration connection is provided via the internal wiring within the PCIe 12X I/O drawer itself. 

Highlights
Supports up to 48 SAS disks, when configured with four #5886 EXP 12S Disk Drawers
SAS speed = 3Gbs
SAS Serial SCSI Protocol (SSP)and Serial Management Protocol (SMP)
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
Attributes provided: Eight physical links via two mini SAS 4x connectors.
Attributes required: One PCIe slot per #5903. Configuration always requires even pairs of #5903. SAS Media devices are not supported. When attaching #5886 EXP 12S at least one of the following SAS (X) cables #3661, #3662 or #3663 must be used.

OS level required:
AIX 5.3 with the 5300-07 Technology Level and Service Pack 9, or later
AIX 5.3 with the 5300-08 Technology Level and Service Pack 7, or later
AIX 5.3 with the 5300-09 Technology Level and Service Pack 4, or later
AIX 5.3 with the 5300-10 Technology Level, or later
AIX 6.1 with the 6100-00 Technology Level and Service Pack 9, or later
AIX 6.1 with the 6100-01 Technology Level and Service Pack 5, or later
AIX 6.1 with the 6100-02 Technology Level and Service Pack 4, or later
AIX 6.1 with the 6100-03 Technology Level, or later
IBM i - not supported
SUSE Linux Enterprise Server 10, Service Pack 2 or later
SUSE Linux Enterprise Server 11 or later
Red hat Enterprise Linux version 4.7 or later
Red Hat Enterprise Linux version 5.2 or later

Note: Each pair can support up to 40 disk (18 SFF disk plus up to 24 SAS disk) when configured with 5802 a 19-inch PCIe 12X I/O Drawer and two #5886 EXP 12S Disk Drawers.