Software RAID: Difference between revisions
m (btrfs is a tech preview now + some typos and slight rewording) |
|||
| Line 12: | Line 12: | ||
See the [[ZFS on Linux]] article for more information. | See the [[ZFS on Linux]] article for more information. | ||
== | == Technology Preview == | ||
=== btrfs === | === btrfs === | ||
btrfs can actually be a | btrfs can actually be a safe and functional choice, it is supported as technology preview since Proxmox VE 7. | ||
== Unsupported Technologies == | |||
=== mdraid === | === mdraid === | ||
mdraid has zero checks for | mdraid has zero checks for bit-rot, data integrity, and file systems commonly used on top do not provide that either. | ||
That means, if some data gets corrupted, which happens on any long-running system sooner or later, and you normally do not notice until it's too late. | That means, if some data gets corrupted, which happens on any long-running system sooner or later, and you normally do not notice until it's too late. | ||
So, Proxmox projects do '''not''' support it to avoid that users run into these problems! | So, Proxmox projects do '''not''' support it to avoid that users run into these problems! | ||
For non-production/unsupported setups, where you still want to use mdraid (please don't!), you can create the required RAID level during Debian installation and then install Proxmox VE or create RAID after install Proxmox VE. | For non-production/unsupported setups, where you still want to use mdraid (please don't!), you can create the required RAID level during Debian installation and then install Proxmox VE or create RAID after install Proxmox VE. See [[Install Proxmox VE on Debian 12 Bookworm]]. | ||
If you need further assistance for md-raid, it's another good sign that you do not want to choose that technology. | If you need further assistance for md-raid, it's another good sign that you do not want to choose that technology. | ||
[[Category: HOWTO]] | [[Category: HOWTO]] | ||
Revision as of 06:43, 21 October 2024
Introduction
Software RAID is an alternative for using hardware-RAID controller for local storage. Please note that Proxmox VE currently only supports one technology for local software defined RAID storage: ZFS
Supported Technologies
ZFS
If you want to run a supported configuration, using a proven enterprise storage technology, with data integrity checks and auto-repair capabilities ZFS is the right choice.
See the ZFS on Linux article for more information.
Technology Preview
btrfs
btrfs can actually be a safe and functional choice, it is supported as technology preview since Proxmox VE 7.
Unsupported Technologies
mdraid
mdraid has zero checks for bit-rot, data integrity, and file systems commonly used on top do not provide that either.
That means, if some data gets corrupted, which happens on any long-running system sooner or later, and you normally do not notice until it's too late. So, Proxmox projects do not support it to avoid that users run into these problems!
For non-production/unsupported setups, where you still want to use mdraid (please don't!), you can create the required RAID level during Debian installation and then install Proxmox VE or create RAID after install Proxmox VE. See Install Proxmox VE on Debian 12 Bookworm.
If you need further assistance for md-raid, it's another good sign that you do not want to choose that technology.