IBM 5903

  • Part Number: 5903
  • Category: SCSI/RAID Controllers
  • Manufacturer: IBM Corporation
  • Quantity: 11

The PCI Express (PCIe) Dual - x4 3Gb SAS RAID Adapter supports the attachment of Serial attached SCSI (SAS) disk and SAS solid-state drives using a pair of mini SAS 4x connectors. The 5903 has a 380 MB write cache and a concurrently replaceable cache battery pack. The adapter must always be installed in pairs and is always to be used in a high availability, multi-initiator RAID configuration using two adapters in dual-controller mode. Two 5903 adapters provide mirrored write-cache data and mirrored RAID parity footprints between the adapters. If the 5903 pairing is broken, then write cache is disabled.

Technical Information

Host Interface: PCI Express x8
RAID Supported: Yes
RAID Levels: 0
RAID Levels: 5
RAID Levels: 6
RAID Levels: 10

Interfaces/Ports

Total Number of SAS Ports: 2
Number of SAS Ports (Internal): 2

Physical Characteristics

Form Factor: Plug-in Card

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