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IBM 5805 PCIe 380MB Cache Dual - x4 3Gb SAS RAID Adapter

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 Product Description

IBM 5805 PCIe 380MB Cache Dual - x4 3Gb SAS RAID Adapter

  • 380MB Cache

IBM 5805 PCIe 380 MB Cache Dual - x4 3 Gb SAS RAID Adapter is a short, full high form factor adapter that supports the attachment of SAS disk and SAS solid state drives (SSD) using a pair of mini SAS 4x connectors. 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 feature 5902 PCI-X SAS adapter and provides a high-performance connection to SAS devices. Two of feature 5805 provides for mirrored write cache data and mirrored RAID parity footprints between the adapters for superior availability. Feature 5805 is installed in pairs, allowing for redundancy of the write cache. If the feature 5805 pairing is broken, then write cache is disabled. The #5805 can also be paired with a #5903 adapter. Feature 5805 supports SAS disk drives (HDD) and SAS-bay-based SSD located in a PCIe 12X I/O Drawer or drives located in an EXP12S Disk Drawer or EXP24 Disk Drawer. AIX/Linux formatted SAS drives can be attached, and RAID 0, RAID 5, RAID 6, and RAID 10 are supported. Similarly, IBM i RAID formatted HDD and SSD can also also be attached, and RAID 5 and RAID 6 is support. AIX, IBM i and Linux also support The #5805 is electronically identical to the #5903 and both the 5903 and 5805 use CCIN number is 574E. The #5805 adapter is slightly more narrow than the #5903 due to the placement of its cache batteries. 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 #5805 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 EXP12S and/or EXP24S Disk Drawer. 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.

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