disk recommendations

[joec22]

I have a server with a RAID1 where pve is installed. There is another RAID10 6TB volume where all data can go. What is the best way to make this available to pve?

I added the disk /dev/sdb with pvcreate, then created a big vg. I then enabled that with the lvm group in the pve web app. But I just want to make sure there is not a better way.

Thanks
Joe

 

[udo]

I have a server with a RAID1 where pve is installed. There is another RAID10 6TB volume where all data can go. What is the best way to make this available to pve?

I added the disk /dev/sdb with pvcreate, then created a big vg. I then enabled that with the lvm group in the pve web app. But I just want to make sure there is not a better way.

Thanks
Joe

Hi Joe,
you can use the raid10 only for kvm-guests. If you don't use openvz-guests your way is right.
With both clients you can extend the volumegroup pve with sdb and put the logical volume data on the raid10 - the space on the raid1 is possible usable for a backup-lv.

Udo

 

[joec22]

Would it make more sense to create lv's for each vm instead of using one large lv?

I also notice that since the lv is not mounted, it's not available in the cli. So I can't really work with the actual files if I want to copy or do anything else.

If I want to use part of this huge array for backups, I need to have it mounted so the webapp can see it as a directory?

If I mount the whole array and create directories for backups and vm storage, does this method degrade performance compared to the method of just using the lvm group for vms?