We use /dev/disk/by-path for this reason, but we confirmed that is stable for our HBAs. Maybe /dev/disk/by-something is consistent with your controller.
Cheers, Dan
-- Dan van der Ster || Data & Storage Services || CERN IT Department --
-------- Original Message --------
From: Sidharta Mukerjee <smukerjee99@xxxxxxxxx>
Sent: Wednesday, March 12, 2014 07:51 PM
To: ceph-users@xxxxxxxx
Subject: if partition name changes, will ceph get corrupted?
If a partition name such as "/dev/sdd" changes to "/dev/sde" and ceph was already mapped to the old "/dev/sdd", how will CEPH react? For example, would it get corrupted, or notice a problem and fail remove that one OSD from cluster or somehow
automatically re-adapt?
FYI: I ask because we added a new hard disk (disk #3) in the middle of a 8-disk server and I'm not sure if the PERC RAID controller and/or the Centos 6.5 OS will rename the original parititions so that the partitions are names alphabetically or just add a new paritition (/dev/sdh) for this 3rd disk.
FYI: I ask because we added a new hard disk (disk #3) in the middle of a 8-disk server and I'm not sure if the PERC RAID controller and/or the Centos 6.5 OS will rename the original parititions so that the partitions are names alphabetically or just add a new paritition (/dev/sdh) for this 3rd disk.
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