5906 - IBM PCI-X DDR 1.5 GB cache SAS RAID Adapter (5904, 5906, 5908 572F 575C)
5906 IBM PCI-X DDR 1.5 GB cache SAS RAID Adapter (FC 5904, 5906, 5908; CCIN 572F and 575C)
The PCI-X DDR 1.5 GB cache SAS RAID Adapter is a SAS disk controller with a maximum of 1.5 GB compressed write cache and a maximum 1.6 GB compressed read cache. Auxiliary write cache and concurrent battery maintenance are provided. The controller is implemented by using two physical adapters that are securely connected to form a double-wide adapter. The double-wide adapter requires two adjacent Peripheral Component Interconnect-X (PCI-X) slots. The auxiliary write cache side of the double-wide adapter contains a dual, concurrently maintainable cache battery pack which maintains cache memory on both adapters in the event of an abnormal termination.
When used in a logical partition (LPAR) environment, this double-wide adapter must have both slots of the adapter assigned to the same logical partition. When implementing dynamic LPAR (DLPAR), both slots of the adapter must be managed together.
Feature 5904, 5906, and 5908 are all feature codes that represent the same PCI-X DDR 1.5 GB cache SAS RAID Adapter. Different feature codes indicate whether a blind swap cassette is used and its type: •Feature 5904 indicates no blind swap cassette. The feature is used in enclosures that do not use blind swap cassettes.
• Feature 5906 indicates a gen-2.5 blind swap cassette. The feature is used in the 5797 and 5798 enclosures.
• Feature 5908 indicates a gen-3 blind swap cassette. This feature is used in the 5790 and 5796 enclosures.
572F is the CCIN number on the RAID adapter side of the double-wide adapter pair. 575C is the CCIN number on the write-cache adapter.
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 are provided by the operating system, and RAID 5 and RAID 6 are provided by the adapter. 1
The IBM 5906 PCI adapter feature is supported on the following IBM iSeries & Power Systems: 9119-FHB, 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, 8205-E6D, 8233-E8B, 8236-E8C, 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, 9179-MHD
The adapter provides three mini-SAS 4x connectors for the attachment of SAS drives in 5886 EXP 12S Expansion Drawers. The adapter supports a maximum of five 5886 EXP 12S Expansion Drawers.1 With correct cabling and configuration, multiple wide ports are used to provide redundant paths to each dual port SAS drive. The adapter manages SAS path redundancy and path switching if a SAS failure occurs.
With the optional pairing of adapter sets, an even higher level of protection is provided by using a dual controller I/O configuration1 to protect against the failure of an entire adapter set. In such a high availability I/O configuration, SAS X cables are used to attach 5586 EXP 12S Expansion Drawers. The fourth mini-SAS connector on each card set is used to directly connect the card sets by using a SAS AA cable.
Operating system or partition requirements
This adapter is supported for the following operating systems:
•IBM iSeries V5R4M5 later
•AIX 5L Version 5.3
•AIX 6.1 or later
•Linux: Red Hat Enterprise Linux version 4, with update 7 or later and SUSE Linux Enterprise Server 10, with service pack 2 or later
