Adding Hardware RAID

[Raymond Burns]

I initially had 6 - 2tb Disks.
I was warned against SoftRaid and FakeRaid, so I installed Proxmox on a single disk, and rotated backups to the other disks every 12 - 24 hours.
I am ready to buy my RAID Card and add RAID to this mix. How can I establish RAID when there wasn't anything before?
If I install PROXMOX on a different disk, will it recognize my backups and 1 VM?
If possible, I would like to move it to completely different hardware that has EEC Memory and RAID. Please advise.

 

[udo]

I initially had 6 - 2tb Disks.
I was warned against SoftRaid and FakeRaid, so I installed Proxmox on a single disk, and rotated backups to the other disks every 12 - 24 hours.
I am ready to buy my RAID Card and add RAID to this mix. How can I establish RAID when there wasn't anything before?

Hi,
an raid-volume is for the OS like an single disk (in case of use an real raid controller).
It's also the same, like you installed a new disk.
The easy way: backup your VMs. remove all disks (for safety). build raid-volume. install pve on the raid-volume. reconnect backup-disk and restore your VMs.

If you have linux experiences, you can also do anything on a runing system (after creating an raid-volume) (in short: copy /boot, expand volumegroup, move content from internal disk to raid-volume, remove single-disk from VG, create boot-block on raid-volume, remove non-raid-disks, reboot) In this case you need only two short reboots (short downtime).

If I install PROXMOX on a different disk, will it recognize my backups and 1 VM?

backup/restore for VM - backups -> define the right storage for backup (plus right entry in /etc/fstab).

If possible, I would like to move it to completely different hardware that has EEC Memory and RAID. Please advise.

of course - it's not windows. You need only change /etc/udev/rules.d/70-persistent-net.rules because the nic-naming changed because of new hardware; reboot and all should work.

Udo

 

[Raymond Burns]

Thanks.
Will post results.
Waiting for my ARC 1880i card to come in now. Going with 2 - 1TB in RAID1 for OS and Backup: and 6 - 2TB in RAID6 for storage, VM, and Backup. Hopefully this all can be done on the one Controller Card

 

[drott]

Thanks.
Will post results.
Waiting for my ARC 1880i card to come in now. Going with 2 - 1TB in RAID1 for OS and Backup: and 6 - 2TB in RAID6 for storage, VM, and Backup. Hopefully this all can be done on the one Controller Card

Depending on your needs and budget, get as much cache ram that device can take and get a battery back up for the cache ram module. It is worth it. with a hardware array, the os should only see te created volumes even if the encompas more than one drive.