>>> "Lentes, Bernd" <bernd.len...@helmholtz-muenchen.de> schrieb am 07.02.2022 um 14:24 in Nachricht <1490802403.168299850.1644240284175.javamail.zim...@helmholtz-muenchen.de>: > Hi, > > i'm currently changing a bit in my cluster because i realized the my > configuration for a power outtage didn't work as i expected. > My idea is currently: > - first stop about 20 VirtualDomains, which are my services. This will > surely takes some minutes. > I'm thinking of stopping each with a time difference of about 20 seconds for
> not getting to much IO load. > and then ... > - how to stop the other resources ? > - put the nodes into standby or offline ? > - do a systemctl stop pacemaker ? > - or do a crm cluster stop ? Bernd, what if you set the node affected to standby, or shut down the cluster services? Or all all nodes powered by the same UPS? > > And what is if both nodes are running ? Can i do that simultaneously on both > nodes ? I guess that should work. > My OS is SLES 12 SP5, pacemaker is 1.1.23, corosync is 2.3.6-9.13.1 Your action plan depends on what the VMNs are doing: basically every HA resource should survive a hard restart without much damange. So maybe an option could be: Do nothing, or do an emergency shutdown of the node without properly migrating all the VMs elsewhere. You cannot make an application HA by putting it in a VM; at least not in general. Regards, Ulrich > > Thanks for your help. > > Bernd > > -- > > Bernd Lentes > System Administrator > Institute for Metabolism and Cell Death (MCD) > Building 25 - office 122 > HelmholtzZentrum München > bernd.len...@helmholtz-muenchen.de > phone: +49 89 3187 1241 > fax: +49 89 3187 2294 > http://www.helmholtz-muenchen.de/mcd > > > Public key: > > 30 82 01 0a 02 82 01 01 00 b3 72 3e ce 2c 0a 6f 58 49 2c 92 23 c7 b9 c1 ff > 6c 3a 53 be f7 9e e9 24 b7 49 fa 3c e8 de 28 85 2c d3 ed f7 70 03 3f 4d 82 fc > cc 96 4f 18 27 1f df 25 b3 13 00 db 4b 1d ec 7f 1b cf f9 cd e8 5b 1f 11 b3 a7 > 48 f8 c8 37 ed 41 ff 18 9f d7 83 51 a9 bd 86 c2 32 b3 d6 2d 77 ff 32 83 92 67 > 9e ae ae 9c 99 ce 42 27 6f bf d8 c2 a1 54 fd 2b 6b 12 65 0e 8a 79 56 be 53 89 > 70 51 02 6a eb 76 b8 92 25 2d 88 aa 57 08 42 ef 57 fb fe 00 71 8e 90 ef b2 e3 > 22 f3 34 4f 7b f1 c4 b1 7c 2f 1d 6f bd c8 a6 a1 1f 25 f3 e4 4b 6a 23 d3 d2 fa > 27 ae 97 80 a3 f0 5a c4 50 4a 45 e3 45 4d 82 9f 8b 87 90 d0 f9 92 2d a7 d2 67 > 53 e6 ae 1e 72 3e e9 e0 c9 d3 1c 23 e0 75 78 4a 45 60 94 f8 e3 03 0b 09 85 08 > d0 6c f3 ff ce fa 50 25 d9 da 81 7b 2a dc 9e 28 8b 83 04 b4 0a 9f 37 b8 ac 58 > f1 38 43 0e 72 af 02 03 01 00 01 _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
