Increase storage

[Alessandro 123]

Hi to all
Current env: PVE 5.2-2 with 4 SSDs in RAIDZ-2

I would like to increase the available space by adding 4 disks more.
What do you suggest ? Creating a new standalone RAIDZ-2 pool or grow the existing one to a new RAIDZ2 ?

Is this something I can do from the web interface ? If not, as I'm not a ZFS expert (and I don't like that at all), any suggestion on how to do this without loosing redundancy ?

 

[LnxBil]

What do you suggest ? Creating a new standalone RAIDZ-2 pool or grow the existing one to a new RAIDZ2 ?

Add a new vdev with 4 drives of course. You will not only increase the space, but also the performance. You need to rebalance your pool to get the performance boot via send/receive.

Is this something I can do from the web interface ? If not, as I'm not a ZFS expert (and I don't like that at all), any suggestion on how to do this without loosing redundancy ?

I don't know about the GUI, but CLI is just fine. Play around with it if you do not feel comfortable enough. I recently wrote a little cli howto for another thread: https://forum.proxmox.com/threads/how-to-organise-drives-passthrough-snapraid-etc.58397/post-269254

 

[Alessandro 123]

Add a new vdev with 4 drives of course. You will not only increase the space, but also the performance. You need to rebalance your pool to get the performance boot via send/receive.

I don't need a performance boost, this server is SSD only and it's already fast, so no need to run send/receive, right ?

Are you saying to add a new vdev to the existing pool ? Or should I create a brand new pool with it's RAIDZ-2 vdev ?

 

[LnxBil]

I don't need a performance boost, this server is SSD only and it's already fast, so no need to run send/receive, right ?

Are you saying to add a new vdev to the existing pool ? Or should I create a brand new pool with it's RAIDZ-2 vdev ?

Yes, and example is in the thread I posted earlier.

I don't need a performance boost, this server is SSD only and it's already fast, so no need to run send/receive, right ?

At least in my world, there is no "fast enough" if you haven't turned every stone, and the rebalancing is a big stone.