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- Biosfw1.img IBM BIOS and Firmware Update (1 of 3) for the ServeRAID-5i controller biosfw2.img IBM BIOS and Firmware Update (2 of 3) for the ServeRAID-4H, ServeRAID-II, ServeRAID on-board, and the ServeRAID controllers. Install two ServeRAID device drivers. The following groups of ServeRAID controllers use two different device drivers.
- IBM's technical support resource for all IBM products and services including downloads, fixes, drivers, APARs, product documentation, Redbooks, whitepapers and technotes. IBM ServeRAID software matrix - IBM Support.
The ServeRAID-MR10M SAS/SATA Controller is a high performance PCIe RAID Controller for external direct-attached storage, including IBM System Storage EXP3000. This RAID adapter provides investment protection by supporting SAS and SATA hard drive configurations, and providing performance enhancements enabled by a standard battery.
We have an IBM xSeries 345 server with a ServeRAID-5i controller which is starting to report problems. We also have a couple of 'retired' x345s with ServeRAID-6i or 6i+ controllers in them.
Is it feasible/safe (re existing data) to move the drives from the x345 with the failing 5i to a x345 with a 6i(+) in it? Are these controllers sufficiently compatible to do that without data loss?
Michael Hampton♦
2 Answers
Both controllers are based on LSI 1030 chipset and there will be 100% HW compatibility. Metadata is stored across the members of the array. You will need to activate RAID volumes from controller BIOS during bootup. Controller won't erase anything unless you want to do that or you set it up so, but anyway, there is no 100% guarantee for data loss prevention. I'm sure disks are low-capacity disks, so it's easy to backup them if you can get couple hours for maintenance window.
Will it boot OS? Some guys are reporting problems booting Windows after this procedure.
What are reported problems? Disks must be very old already, and failing... Got SMART status?
Update:Also, there are Adaptec-based ServeRAID-6i controllers (CARDS). This one is incompatible with LSI metadata format.
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LSI1030 is a SCSI chip on planar. 5i and 6i are zero-channel RAID cards on top of it. Both have i960 series chips on them, hence the driver name nfrd960.sys.Metadata is compatible, 6i can import RAID config from 5i. But cards have different PCI ID values, so Windows may not be able to cope with the change, as it ties the boot volume with controller PCI ID. Chances are better when Windows already knows 6i and has driver configured for it (6i may be present in another PCI slot, it just cannot communicate with onboard SCSI from there).