Hi, folks. Just started using Rockstor and it’s really hitting the mark with my storage needs, but I’ve moved from a Linux machine where I had a software RAID1 mirror for the OS, and I wondered what would be the best way to achieve this now in Rockstor?
I know that the previous guide for CentOS was recently removed (Remove legacy "Mirroring Rockstor OS using Linux Raid" · Issue #466 · rockstor/rockstor-doc · GitHub) but I wondered if there were any plans for a new How-To or any guidance? I’m not particularly familiar with the way that SUSE sets things up.
Thanks,
Iain.
@iainhallam welcome to the Rockstor community. While I probably don’t have an answer for you, I am curious why you feel you need a RAID1 mirror for the OS? I always thought that one of the benefits of Rockstor was that the OS and the data are completely separated. Since the installation of the base OS on a separate disk takes about 5 minutes and when using the configuration backup to restore the previous settings that adds another 5 minutes (granted, it requires to keep a backup of the configuration some place else), so in case of having to restore the appliance one is back in business very quickly. I don’t believe that the RAID1 read speed improvement for the OS disk makes much of a difference in the overall performance of the appliance. That’s more noticable for the data disk RAID decisions one makes.
It’s for redundancy. I’m going to be putting one of these systems in a remote location where I don’t want to have to do a reinstall in a hurry if the OS disk fails - I’d prefer to run degraded for a day or so to schedule a visit. Would converting the partitions on /dev/sda to md RAID 1 under their file systems be a potential strategy?