Best Practice for Installation

[cdaher]

Hello guys,

I have to reinstall my Proxmox due to power failure at my infrastructure and lost all my Vm's (no backup, super block corruption, metadata full, etc). Tried lot of procedures (forum reading, git codes, other posts with same issues) with no success.

Now, as we provided a new electrical installation and infrastructure, I need to deploy from the beginning. My server has now a 2x6TB RAID 1 virtual disk and 4x1TB RAID 10.
I'd like to have a installation with enough space for Iso's, backup and some snapshots without issues with medatada or pve/sda3 to be full and mapped on the same VG.

What should be a good scenario in terms of disk space to deploy a LVM and LVM-Thin with good amount of space to run at max 6VM's?

I'd appreciate some suggestions.

Kind Regards,

 

[wolfgang]

Hi,

LVM does not support snapshots but is faster then Thin-LVM and has not the metadata topic.
Thin-LVM is thin allocated images support snapshots and overprovision, but as you know you have to monitor the metadata usage.

If you like to use thin-LVM do not extend the volumes. This is the major reason why the metadata pool is too small.
In the current version of Proxmox VE we have increased the metadata pool so if you do not extend the pool you are on the save side.

I personally would use the Raid 1 for root and backup/iso storage.
On this LUN I would remove the default created thin-pool and make lv witch is used as FS (ext4/xfs).
And the raid 10 use for the VM's.