If that is supported, then you need to get your HP engineer to update their installation document:
https://support.hpe.com/hpsc/doc/public ... =c03606625Bottom of page 39:
Quote:
Guidelines for Allocating and Loading Order (2.5 inch SFF disk drive)
For a node or M6710 Drive Enclosure, drives must be added in identical pairs, starting from slot
0 on the left and filling to the right, leaving no empty slots between drives.
Back to the issue there doesn't seem to be any active errors.... I would probably log a case for this ... could be something "stuck" requiring a restart of sysmgr or similar or it could be something under the covers that isn't displayed.