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Also, consider booting with only one drive in at a time. If it was set up as a RAID1 (only 2 drives) then it should boot on either. It might be that you have a failed drive and somehow it isn’t proceeding in the boot process. Whenever a server, that may have been running for a long time, is shut down and moved there is a high probability of a drive failure and also that the internal components (memory, expansion boards) get loosened up. Reseat everything and, if that doesn’t work, try with one drive at a time.
I work for HPE. The comments in this post are my own and do not represent an official reply from the company. No warranty or guarantees of any kind are expressed in my reply.
@HPSDMike wrote:Also, consider booting with only one drive in at a time. If it was set up as a RAID1 (only 2 drives) then it should boot on either.
If this system is using the embedded B110i, the second disk more than likely will not be bootable. The B110i is a software defined RAID controller and the actual RAID function is controlled by a driver. For Gen9 and Gen10 servers that support UEFI, there is a tchnical paper on how to make the drives using the embedded software RAID controller boot from either disk. Not saying it can't be done on this old controller, but it is more complicated to make work. To recover this system, a rescue image will probably be needed to boot the system before data can be recoverd from the mirror drive (assuming the first disk is the failed drive)
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