[PVE-User] Remove 1-2 OSD from PVE Cluster

[Eneko Lacunza]

Hi,

Why not use "Remove OSD" button in PVE WUI? :-)

El 13/1/22 a las 9:13, Сергей Цаболов escribió:
> Hello to all.
>
> I have cluster with 7 node.
>
> Storage for VM disk and others pool data is on ceph version 15.2.15 
> (4b7a17f73998a0b4d9bd233cda1db482107e5908) octopus (stable)
>
> On pve-7 I have 10 OSD and for test I want to remove 2 osd from this 
> node.
>
> I write some steps command how I remove this OSD from pve-7 cluster 
> and ceph storage.
>
> 1) root at pve-7 ~ # ceph osd tree
>
> 2) ceph osd reweight
> 2.1) ceph osd reweight osd.${ID} 0.98
> 2.2) ceph osd reweight osd.${ID} 0.0 can I set the 0.0 to clean osd.X 
> before remove it?
>
> 3) When osd is clean from data can I?
> ceph osd down osd.${ID}
>
> 4) Remove the osd from cluster
> ceph osd out osd.${ID}
>
> 5) Stop the OSD and umount the osd
> systemctl stop ceph-osd@${ID}
> umount /var/lib/ceph/osd/ceph-${ID}
>
> 6) Remove the osd from CRUSH map:
> ceph osd crush remove osd.${ID}
>
> 7) Remove the user of OSD:
> ceph auth del osd.${ID}
>
> 8) And now full delete the OSD:
> ceph osd rm osd.${ID}
>
> 9) Last command
>
> ceph osd tree (removed OSD not showing
>
> Can some one suggest me my steps command is correct ?
>
> Or I need change some steps?
>
> Thanks .
>

Eneko Lacunza
Zuzendari teknikoa | Director técnico
Binovo IT Human Project

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