Update ceph Quincy

D

DEZERTIR

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Aug 28, 2025
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Hello. Can you tell me how to upgrade Ceph Quincy from 17.2.7 to 17.2.8 on Proxmox VE 8.4.1 without downtime? Is there a comprehensive guide on upgrading a minor version?
 
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Hi. A normal package update and restarting of services afterwards should suffice. Most of the instructions below have been taken from https://pve.proxmox.com/wiki/Ceph_Quincy_to_Reef and adapted, see that for more details on specifics.

After each operation wait until ceph -s reports HEALTH_OK or HEALTH_WARN noout flag(s) set.

(optional, but recommended) set noout. this prevents CRUSH from rebalancing the cluster during maintenance

Code: 
ceph osd set noout

Upgrade the ceph version

Upgrade ceph on all nodes to the latest version, for Proxmox VE 8 this is 17.2.8 currently, after the upgrade you will still be running the old version.

Code: 
apt update
apt full-upgrade

Restart the monitor daemon

Do that one node at a time

Code: 
systemctl restart ceph-mon.target

Restart the manager daemons on all nodes

Code: 
systemctl restart ceph-mgr.target

Restart the OSD daemon on all nodes

Restart all OSDs. Only restart OSDs on one node at a time to avoid loss of data redundancy. To restart all OSDs on a node, run the following command:

Code: 
systemct restart ceph-osd.target

Unset the noout flag

Once the upgrade process is finished, don't forget to unset the noout flag.

Code: 
ceph osd unset noout

Notes
 
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mfederanko said:
Hi. A normal package update and restarting of services afterwards should suffice. Most of the instructions below have been taken from https://pve.proxmox.com/wiki/Ceph_Quincy_to_Reef and adapted, see that for more details on specifics.

After each operation wait until ceph -s reports HEALTH_OK or HEALTH_WARN noout flag(s) set.

(optional, but recommended) set noout. this prevents CRUSH from rebalancing the cluster during maintenance

Code: 
ceph osd set noout

Upgrade the ceph version

Upgrade ceph on all nodes to the latest version, for Proxmox VE 8 this is 17.2.8 currently, after the upgrade you will still be running the old version.

Code: 
apt update
apt upgrade

Restart the monitor daemon

Do that one node at a time

Code: 
systemctl restart ceph-mon.target

Restart the manager daemons on all nodes

Code: 
systemctl restart ceph-mgr.target

Restart the OSD daemon on all nodes

Restart all OSDs. Only restart OSDs on one node at a time to avoid loss of data redundancy. To restart all OSDs on a node, run the following command:

Code: 
systemct restart ceph-osd.target

Unset the noout flag

Once the upgrade process is finished, don't forget to unset the noout flag.

Code: 
ceph osd unset noout

Notes
Click to expand...
Thank you very much for the advice
 
mfederanko said:
Code:
Code: 
apt update
apt upgrade
Click to expand...
Never ever use apt upgrade on PVE: always use apt dist-upgrade or it's synonym apt full-upgrade, as detailed in the docs you linked.
That said, if you follow those steps apt will update all packages, not just Ceph one's, which isn't what OP asked for. An apt install ceph-common should be enough to upgrade Ceph packages only.
 
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VictorSTS said:
Never ever use apt upgrade on PVE: always use apt dist-upgrade or it's synonym apt full-upgrade, as detailed in the docs you linked.
That said, if you follow those steps apt will update all packages, not just Ceph one's, which isn't what OP asked for. An apt install ceph-common should be enough to upgrade Ceph packages only.
Click to expand...
You are right, I'll fix the original answer.
 
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