Migrate proxmox os to annother hard with dfferent size and raid configuration

mm580486

New Member
May 2, 2020
11
2
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Hi
I want migrate my proxmox os from raid 0 hard to another hard with raid 5 , i cant find any solution in your documentationn , what is best safe way for migrate os to another hard

thanks
 

wolfgang

Proxmox Staff Member
Oct 1, 2014
6,496
491
103
Hi,

there is more than one way to do this.
And it depends much on your setup.
Please describe a bit more.
Have you got an NFS where you can backup your VM? Is downtime a problem? ...
 

mm580486

New Member
May 2, 2020
11
2
3
24
I use latest proxmox version
i have 3 type of hard
1- Hp SSD 800GB raid 0 (my proxmox os and 6 VM)
2- Nvme 1TB raid 4( empty )
3- Toshiba 8TB raid 5 (for backup)

i want move my os to raid 4 hards
 

wolfgang

Proxmox Staff Member
Oct 1, 2014
6,496
491
103
Install Proxmox VE on the new server and configure it.
Stop your guests.
Then make a backup of all your VM to the Backup server and restore it on the new server.

This way you can always start over and the guest is completely safe.
 

Alexander Pytlev

Active Member
Apr 14, 2016
64
12
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Simply way:
Boot from live CD/USB, dd from "Hp SSD 800GB raid 0" to "Nvme 1TB raid 4", shutdown server.
Disconnect or remove "Hp SSD 800GB raid 0", power on, goto BIOS setup and set boot from "Nvme 1TB raid 4"
Try to boot Proxmox from "Nvme 1TB raid 4"
If all ok, reboot from live CD/USB and grow data volume.

But, safest way - what Wolfgang said.
Backup all VMs, backup pve settings, reinstall Proxmox VE on new disk, configure it and restore VMs.
 

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