Product Description
IBM 5903 PCIe 380MB Cache Dual-x4 3Gb SAS RAID Adapter
The IBM 5903 is a PCIe SAS RAID adapter with 380 MB write cache that must be installed in pairs for high-availability dual-controller configurations.
Product Description
The IBM 5903 PCIe Dual-x4 3 Gb SAS RAID Adapter supports attachment of SAS disk drives and SAS solid-state drives using a pair of mini SAS 4x connectors. It has 380 MB of write cache and a concurrently replaceable cache battery pack. The adapter must always be installed in pairs and is used in a high-availability multi-initiator RAID configuration. Two 5903 adapters provide mirrored write-cache data and mirrored RAID parity footprints. If the pairing is broken, write cache is disabled. The 5903 can also be paired with a 5805 adapter. It is electronically identical to the 5805. The CCIN is 574E. The adapter supports SAS drives in a PCIe 12X I/O Drawer or EXP 12S / EXP24S Disk Drawer, and can connect to internal drives using a split disk backplane.
Features
- 380 MB non-volatile write cache
- Concurrently replaceable cache battery pack
- Dual-controller high-availability mode (installed in pairs)
- Mirrored write cache and RAID parity between adapters
- RAID 0, 5, 6, and 10 (AIX/Linux)
- RAID 5 and 6 (IBM i)
- Dual mini SAS 4x connectors
- Path redundancy and automatic path switching
- Concurrent firmware update
Technical Specifications
- Feature Code: 5903
- CCIN: 574E
- Cache: 380 MB write cache
- RAID Levels: 0, 5, 6, 10 (AIX/Linux); 5, 6 (IBM i)
- Interface: PCIe x8
- SAS Speed: 3 Gbps
- Connectors: Two mini SAS 4x
- Form Factor: Short, full-height
- FRU: 46K4735, 44V8581 (examples)
Compatibility
The IBM 5903 PCIe SAS RAID Adapter is compatible with:
- Systems: IBM Power6, Power7, and select Power8 servers with PCIe slots
- Operating Systems: AIX 5.3 with Technology Level 5300-07 and Service Pack 9 or later, AIX 6.1 or later, IBM i at supported levels, SUSE Linux Enterprise Server and Red Hat Enterprise Linux at supported levels
- Storage: SAS HDDs and SSDs in EXP 12S, EXP24S, or PCIe 12X I/O Drawer; internal drives via split backplane
- Limitations: Must be installed in pairs. Write cache is disabled if pairing is broken. 4K sector drives are not supported. Confirm cable and enclosure requirements
Warranty
This product comes with a 60-day warranty covering parts and functionality.
