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Anybody can help? How to configure MSA2050 on another nodes? It works only on first :( Disk view on first node (working) And on second (mulitipath -ll shows nothing)

Something wrong again. I've configured 2 nodes and it worked (even with working vm with storage on msa). Today I've noticed that msa storage on second node has question mark. I totally don't know why - pve shows nothing on `multipath -ll` command, there is no volume group on node 2, too. I have...

Thanx

I've connected MSA2050 to Proxmox, it works, I can create vms but I've got error while migrating disk from another node: TASK ERROR: storage migration failed: target storage is known to cause issues with aio=io_uring (used by current drive) What to do to fix it?

Ok, thanx. Now it's completely clear for me.

Can you explain me how to set up 3 nodes with working live migration? Every node has own storage but live migration needs the same name storage on all nodes. It's not possible to add the same name storage more than once.

ok, I got it. It was easy.

1. I've done it 2. I've installed multipath-tools and multipath-tools-boot and lsscsi shows such state: [1:0:0:0] enclosu HPE MSA 2050 SAS V270 - [1:0:0:1] disk HPE MSA 2050 SAS V270 /dev/sdd [1:0:1:0] enclosu HPE MSA 2050 SAS V270 - [1:0:1:1] disk...

Hello, you told that's pretty much plug and play. But not for me, I think. Could you explain it to me shortly?

Lvm is not shared storage "by design". But sas is shared, why?

Thanks a lot for your very comprehensive answers.

I need shared storage but network independent. That's why I have chosen sas array.

Ok, thanks. Indeed, I have to read about SAS. I thought it's simple as NFS attaching

Is SAS connected as ISCSI?

So I can create lvm and attach it to 4 nodes?

Only feature I need is one shared volume for qcow/raw images. And simple configuration

I would like to buy a HP MSA2050 SAS Array. Is there any simple solution to attach it to 4 nodes Proxmox cluster without any issues?

I've created another topic about 8 months ago and didn't get help, too : https://forum.proxmox.com/threads/backup-restore-low-speed-what-is-wrong.124426/

I didn't find solution, I'm still working on it. With iperf, I get about 8Gbit, but when I try to copy file between nodes, I get about 120-160MB/s , This is very much under storage performance.

I've got a question - I'm creating 4 nodes cluster, storage will be directory on every node, can I use the same name of storage on every node? Will it work? How to do it properly to migrate vms with local storage disks?