Will RAID5 from old install be detected in a fresh OMV6 install

vishnumrao · 23. Juni 2022

I have data on a RAID5 on 4x2TB SATA drives for a single 6TB data server. I need change my boot drive to a new device and I want to do a fresh start.

If I install OMV6 on new boot device and then connect my SATA drives (to same SATA ports), will my RAID0 be detected by the new install?

macom · 23. Juni 2022

Yes, the RAID should be detected when booting. Make sure to install without data drives connected to avoid installing to the wrong place.

As you will still have your old OS drive, you can always go back if it should unexpectedly not work.

vishnumrao · 23. Juni 2022

Thank you for confirming it should be detected.

The installation notes do note that all other drive should be disconnected before installation. Nice of you to reiterate this.

vishnumrao · 27. Juni 2022

macom I did a fresh install and the RAID5 from the previous installation was recognized and mountable as well.

In the long term, is it ok to keep using this RAID5 or should I rebuild since this RAID5 was originally created on another installation?

macom · 27. Juni 2022

I do not see a need to set up the RAID5 from scratch.

OMV is using standard tools from Debian. mdadm in the case of RAID.

But be aware "RAID is no backup"

vishnumrao · 27. Juni 2022

Got it. I use the RAID5 for the convenience of large single filesystem shared on my local network with some fail protection. All of my data is rsynced periodically to a 10 TB USB hard drive.

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