I don’t remember, search into pvecm and pve[tab][tab] related commands man pages
> On Mar 10, 2022, at 2:19 PM, Stefan Radman <[email protected]> wrote: > > Hi Sto > > Thanks for the suggestions. > > The second option is what I was looking for. > > How do I initiate “pve node maintenance mode”? > > The “Node Maintenance” paragraph in the HA documentation is quite brief and > does not refer to any command or GUI component. > > Thank you > > Stefan > > >> On Mar 10, 2022, at 14:50, [email protected] >> <mailto:[email protected]> wrote: >> >> Hi, >> >> here are two ideas: shutdown sequence -and- command sequence >> 1: shutdown sequence you may achieve when you set NUT’s on each node to only >> monitor the UPS power, then configure each node to shutdown itself on a >> different ups power levels, ex: node1 on 15% battery, node2 on 10% battery >> and so on >> 2: you can set a cmd sequence to firstly execute pve node maintenance mode >> , and then execute shutdown -> this way HA will not try to migrate vm to >> node in maintenance, and the chance all nodes to goes into maintenance in >> exactly same second seems to be not a risk at all. >> >> hope thats helpful. >> >> Regards, >> Sto. >> >>> On Mar 10, 2022, at 1:10 PM, Stefan Radman via pve-user >>> <[email protected] <mailto:[email protected]>> wrote: >>> >>> >>> From: Stefan Radman <[email protected] <mailto:[email protected]>> >>> Subject: Locking HA during UPS shutdown >>> Date: March 10, 2022 at 1:10:09 PM GMT+2 >>> To: PVE User List <[email protected] >>> <mailto:[email protected]>> >>> >>> >>> Hi >>> >>> I am configuring a 3 node PVE cluster with integrated Ceph storage. >>> >>> It is powered by 2 UPS that are monitored by NUT (Network UPS Tools). >>> >>> HA is configured with 3 groups: >>> group pve1 nodes pve1:1,pve2,pve3 >>> group pve2 nodes pve1,pve2:1,pve3 >>> group pve3 nodes pve1,pve2,pve3:1 >>> >>> That will normally place the VMs in each group on the corresponding node, >>> unless that node fails. >>> >>> The cluster is configured to migrate VMs away from a node before shutting >>> it down (Cluster=>Options=>HA Settings: shutdown_policy=migrate). >>> >>> NUT is configured to shut down the serves once the last of the two UPS is >>> running low on battery. >>> >>> My problem: >>> When NUT starts shutting down the 3 nodes, HA will first try to >>> live-migrate them to another node. >>> That live migration process gets stuck because all the nodes are shutting >>> down simultaneously. >>> It seems that the whole process runs into a timeout, finally “powers off” >>> all the VMs and shuts down the nodes. >>> >>> My question: >>> Is there a way to “lock” or temporarily de-activate HA before shutting down >>> a node to avoid that deadlock? >>> >>> Thank you >>> >>> Stefan >>> >>> >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> pve-user mailing list >>> [email protected] <mailto:[email protected]> >>> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user >>> <https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user> >> >> >> Best Regards, >> >> Stoyan Stoyanov Sto | Solutions Manager >> | Telehouse.Solutions | ICT Department >> | phone/viber: +359 894774934 <tel:+359 894774934> >> | telegram: @prostoSto >> <https://mysignature.io/redirect/skype:prosto.sto?chat> >> | skype: prosto.sto <https://mysignature.io/redirect/skype:prosto.sto?chat> >> | email: [email protected] <mailto:[email protected]> >> | website: www.telehouse.solutions <https://mysig.io/MTRmMTg> >> | address: Telepoint #2, Sofia, Bulgaria >> <https://mysignature.io/editor/?utm_source=freepixel><356841.png> >> >> <https://mysig.io/ZDNkNWY> >> Save paper. Don’t print >> >> >> >> >> >> >> >> Best Regards, >> >> Stoyan Stoyanov Sto | Solutions Manager >> | Telehouse.Solutions | ICT Department >> | phone/viber: +359 894774934 <tel:+359 894774934> >> | telegram: @prostoSto >> <https://mysignature.io/redirect/skype:prosto.sto?chat> >> | skype: prosto.sto <https://mysignature.io/redirect/skype:prosto.sto?chat> >> | email: [email protected] <mailto:[email protected]> >> | website: www.telehouse.solutions <https://mysig.io/MTRmMTg> >> | address: Telepoint #2, Sofia, Bulgaria >> <https://mysignature.io/editor/?utm_source=freepixel><356841.png> >> >> <https://mysig.io/ZDNkNWY> >> Save paper. Don’t print > Best Regards, Stoyan Stoyanov Sto | Solutions Manager | Telehouse.Solutions | ICT Department | phone/viber: +359 894774934 <tel:+359 894774934> | telegram: @prostoSto <https://mysignature.io/redirect/skype:prosto.sto?chat> | skype: prosto.sto <https://mysignature.io/redirect/skype:prosto.sto?chat> | email: [email protected] <mailto:[email protected]> | website: www.telehouse.solutions <https://mysig.io/MTRmMTg> | address: Telepoint #2, Sofia, Bulgaria <https://mysignature.io/editor/?utm_source=freepixel> <https://mysig.io/ZDNkNWY> Save paper. Don’t print _______________________________________________ pve-user mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
