Signed-off-by: Aaron Lauterer <a.laute...@proxmox.com> --- changes since v1: * incorporated suggested changes in phrasing to fix grammar and distinguish the steps on how to power down the nodes better
pveceph.adoc | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/pveceph.adoc b/pveceph.adoc index 089ac80..04bf462 100644 --- a/pveceph.adoc +++ b/pveceph.adoc @@ -1080,6 +1080,56 @@ scrubs footnote:[Ceph scrubbing {cephdocs-url}/rados/configuration/osd-config-re are executed. +[[pveceph_shutdown]] +Shutdown {pve} + Ceph HCI cluster +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +To shut down the whole {pve} + Ceph cluster, first stop all Ceph clients. This +will mainly be VMs and containers. If you have additional clients that might +access a Ceph FS or an installed RADOS GW, stop these as well. +Highly available guests will switch their state to 'stopped' when powered down +via the {pve} tooling. + +Once all clients, VMs and containers are off or not accessing the Ceph cluster +anymore, verify that the Ceph cluster is in a healthy state. Either via the Web UI +or the CLI: + +---- +ceph -s +---- + +Then enable the following OSD flags in the Ceph -> OSD panel or the CLI: + +---- +ceph osd set noout +ceph osd set norecover +ceph osd set norebalance +ceph osd set nobackfill +ceph osd set nodown +ceph osd set pause +---- + +This will halt all self-healing actions for Ceph and the 'pause' will stop any client IO. + +Start powering down your nodes without a monitor (MON). After these nodes are +down, continue shutting down hosts with monitors on them. + +When powering on the cluster, start the nodes with Monitors (MONs) first. Once +all nodes are up and running, confirm that all Ceph services are up and running +before you unset the OSD flags: + +---- +ceph osd unset noout +ceph osd unset norecover +ceph osd unset norebalance +ceph osd unset nobackfill +ceph osd unset nodown +ceph osd unset pause +---- + +You can now start up the guests. Highly available guests will change their state +to 'started' when they power on. + Ceph Monitoring and Troubleshooting ----------------------------------- -- 2.39.2 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel