Ceph failed OSD disk replace

Hai

Member
Feb 17, 2021
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Hello,

We have a failed OSD disk to replace on a production server. We have to hot replace it using remote hands in data center.

Are theese steps correct?

1.Set global OSD flags: noout/norebalance/nobackfill
2.Out and destroy failed disk
3.Wipe failed disk under Disks /dev/sdx
4.Physically remove failed disk.
5.Insert new disk
6.Create OSD with new disk
7. Remove global OSD flags.

Please advise, thank you!
 
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Sounds okay.

3.Wipe failed disk under Disks /dev/sdx
Depending on how thorough you need to wipe the disk, the "Cleanup" option migh be enough. But IIRC it will only wipe the partition and LVM settings and won't zero out the disk. If it is an SSD, you want to issue a "secure erase" command anyway instead of zeroing it out manually.
 
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Sounds okay.


Depending on how thorough you need to wipe the disk, the "Cleanup" option migh be enough. But IIRC it will only wipe the partition and LVM settings and won't zero out the disk. If it is an SSD, you want to issue a "secure erase" command anyway instead of zeroing it out manually.
Thank you, aaron!
 
Good to hear :)
 

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