Mirroring Proxmox Install Disk

[bengrech]

Hi All,

I have just discovered the marvels of using proxmox, which I must say is great!

I have a question regarding my current installation. I have installed it on a single disk and it works great but I do not have hardware RAID. I have managed to get hold of an additional identical disk and would like to implement RAID 1 for some basic mirroring?

I have seen that proxmox is installed on an LVM called pve, but can this LVM be mirrored? Is there some other approach or resiliency strategy which can be used?

Thanks in advance

 

[udo]

Hi All,

I have just discovered the marvels of using proxmox, which I must say is great!

I have a question regarding my current installation. I have installed it on a single disk and it works great but I do not have hardware RAID. I have managed to get hold of an additional identical disk and would like to implement RAID 1 for some basic mirroring?

I have seen that proxmox is installed on an LVM called pve, but can this LVM be mirrored? Is there some other approach or resiliency strategy which can be used?

Thanks in advance

Hi,
proxmox don't support software-raids. But some people in this forum use this - search for software raid and i think you will find a lot of posts.
The lvm is in this case ontop of the software-raid.

But the speed on an good hw-raid-controller can be important for virtualisation - depends on your usecase.

Udo

 

[bengrech]

Dear Udo,

Would like to thank you for your prompt reply. As an alternative what solution would you recommend to take a full system state backup to the second disk?

All my KVM VMs are on an NFS store as well as all backups of OpenVZ VMs. Is there any way I can take a backup of the config of the proxmox server so that if the hard disk fails, I can reinstall plainly and then restore the configuration?

Any recommendations / approaches would be appreciated obviosly

 

[udo]

Dear Udo,

Would like to thank you for your prompt reply. As an alternative what solution would you recommend to take a full system state backup to the second disk?

All my KVM VMs are on an NFS store as well as all backups of OpenVZ VMs. Is there any way I can take a backup of the config of the proxmox server so that if the hard disk fails, I can reinstall plainly and then restore the configuration?

Any recommendations / approaches would be appreciated obviosly

Hi,
if you can live with a "short" downtime you need only a few saved things:
/etc/qemu-server # the kvm-configs
/etc/vz/conf # the openvz-conf
/etc/network/interfaces # your network configuration
/etc/pve # node-configuration (storage...)
/root/.forward # email-address

If you have special settings (mounts: fstab, drbd, ...) you need perhaps more.

Udo