June 6, 20224 yr My server will have completely new mobo/CPU/RAM, but my disks will stay the same and cache will switch from SSD to NVMe. Actual disks are on two PCIe SAS/SATA cards. I know what to do with the cache (mark all cache based shares to cache YES instead of PREFER, disable VMs and Docker, invoke mover, old cache should be empty). What I am not sure is what to do with the actual array when I replace the hardware. I suspect UNRAID on "new" server will see the disks in a different order maybe? I need to be careful to set the same disks (by ID and serial) in same order on "new" server? This will be enough to start array and "accept" it as healthy with no need for rebuilds? Or the order doesn't actually matter? (as parity calculation doesn't care about that normally) Help? (and yes then with new cache, set cache based shares back to PREFER, I know that part) Edited June 6, 20224 yr by NLS
June 6, 20224 yr Community Expert As long as the disk hardware reports the serial numbers for your drives in the same way then Unraid will not care where they are physically plugged in.
June 6, 20224 yr Author 11 minutes ago, itimpi said: As long as the disk hardware reports the serial numbers for your drives in the same way then Unraid will not care where they are physically plugged in. Well since the same two PCIe cards will be used, I guess they will report them the same exact way.
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