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If you have HA 3-node cluster is working automaticaly. If you have 2-node backup cluster, and main (pve1) node id dead, this is procedure to wake up all vms and containers on second node (pve2) replicated earlier by corosync via ZFS incemental snapshots...

7.4 work fine, 8.1 does not. One machine, one USB stick. So there are something wrong with prepare instalation from ISO. unfortunelly I'had choice 7.4 for production, because 8.1 instalation did not start. I prepared multi iso stick by ventoy

I think good idea to launch urbackup server in VM. I had several problems with TurnkeyDomainControler launched in LXC. Maybe is any idea to launch urbackup inside VM, but with for .VHD backups on network share. Turnkey File Server LXC works well for example. I know, it's look so complicated for...

Ok. Sorry. I understood, that problem is in no support after installation and working MSSQL under the Linux atall. Right. Microsoft documentation says only about operating system. Nothing about running in container or VM. Important thing is, that ZFS file system is not supported for MSSQL in...

I think it's supported, because instructions are on microsoft webpages: https://docs.microsoft.com/pl-pl/sql/linux/sql-server-linux-overview?view=sql-server-ver16

Best solution is running MSSQL Server in Linux in full VM, againts LXC container. WIN 10 is the worst option, because of updates, and problems with stability in long work period without shutdown. (I had inaccesible boot devices in monday morning, so....) MSSQL in unprivileged container works...

Ok. So conclusion is, that we have no guarantee, that after failed one of nodes, VMs or LXCs will be consistent on another node after last replication. Better way is making snapshots of VM with --vmstate 1 option, and replicate this snapshot to the others node. (And if VM will be non consistent...

Yes, I know that corosync does't make snapshots. However in module replication we can set period of synchronize data between nodes in cluster. For example every 5 minutes. I asked about this process. When LXC and VMS are snaphooted and sent to another node - is it only state of disks sent (ZFS)...

Yes I understand this. But is any differences between LXC and VM snapshooted by corosync ? Are the VM more safety, than LXC for situation like this? Does corosync make period snapshot of VM with memory state or only disk state before sends a snapshot to other node?

My question is what will happen with LXc containers with MySQL or MSSQL servers working inside , if all containers and other VMs are working in Proxmox cluster HA or backup cluster. What is happened if one of node will die, and corosync starts them from other node. Will databases (or other...

I've not tested moving of Virtual machines, but I've tested moving LXC containers, and it works in 50%: Migration LXC containers from 6.4 to 7.2 works fine, but migration back the same LXC container ( turnkey openVPNServer, which doesn't work on 7.2 host ) from 7.2 to 6.4 failed with...

1. What about VM with SQL server working inside. Normally if we want take a coherent snapshot of VM like this, we have to use qm --vmstate 1 for dump memory of VM (beacause of opened buffers by SQL engine and qm agent inside VM). How works replication by corosync between two nodes VMs - Only...

I found solution to resolve problems with "MEDIA BOOT IS INACCESIBLE"after implementation of this procedure. The full procedure should be: " 1 Created EFI disk as a quick way to make a dummy disk. 2 Set controller to vmware (As this came from vmware so driver already on it) 3 Added dummy disk...

In proxmox 6.4 I've made transfer hard Disk (which I have created from virtualise phisical server by VmWare Converter) from IDE to Virtio Block succefully in your way. When I tried to do that from IDE into SCSI, I have "boot media is not accesible". Transfer works only from IDE into Virtio Block...

Try for testing other software for backup. "Duplicati" inside VM - it's also uses vss. You have to start this like a service from cmd, and before that, install vc_redist.x64.exe. Duplicati is doing diffirential backup od working databases, opened .pst outlook files succesfully in my VMs under...

I have similar problem in version 6.0 I have scripts running in cron, is doing live snapshot of VM with command "qm snapshot ID --vmstate 1" every 3 hours and deletes olds from last day. After few days, this command hangs a VM, and I have kill -9 the process. After this, and starting machine...

The best way to create a fully consistent backup of workinkg sql server inside VM, use the command qm snapshot --vmstate 1 with enabled and running qemu agent inside a VM. First: after command qm, agent will flush the buffers, before starting snapshot of disks (by command zfs snapshot create)...