Use RAID1 to try new system on one disk
Posted: 2020/01/22 21:08:03
Hello
I have a workstation at home working as RAID1 virtual disk (not RAID1+0, but just two mirrored disks)
I'd like to test a new nvidia driver installation (using nouveau now) but last time i tryed i spent days just to recover my GNOME.
So, I'd like to use one of my physical disks to perform all operations on it, and leave the other one just as "backup" so I can rebuild my RAID1 virtual disk in case a failure happens (It will happen,I'm sure... )
My RAID controller is a PERC H310 on a Dell T7600. I have the OS tools (MegaCli and perccli,and also the BIOS configuration tool at boot) for this controller, but my doubt is how to proceed.
I think,I should take one physical disk A from the RAID so only disk B is left, do the tests on A, and then rebuild B using A disk if all goes well (reverse if not). But i don't know how to do that exactly, and how to say which disk must be used as "master" for the rebuild process, so its data are written to the other disk and not to the wrong one.
-In case of failure in new system on A disk: Will the RAID be automatically rebuilt if after taking out a disk A I just add it again?
-In case of success: How can i say RAID now use A disk to "refresh" the left B disk?
Any help is welcome.
I have a workstation at home working as RAID1 virtual disk (not RAID1+0, but just two mirrored disks)
I'd like to test a new nvidia driver installation (using nouveau now) but last time i tryed i spent days just to recover my GNOME.
So, I'd like to use one of my physical disks to perform all operations on it, and leave the other one just as "backup" so I can rebuild my RAID1 virtual disk in case a failure happens (It will happen,I'm sure... )
My RAID controller is a PERC H310 on a Dell T7600. I have the OS tools (MegaCli and perccli,and also the BIOS configuration tool at boot) for this controller, but my doubt is how to proceed.
I think,I should take one physical disk A from the RAID so only disk B is left, do the tests on A, and then rebuild B using A disk if all goes well (reverse if not). But i don't know how to do that exactly, and how to say which disk must be used as "master" for the rebuild process, so its data are written to the other disk and not to the wrong one.
-In case of failure in new system on A disk: Will the RAID be automatically rebuilt if after taking out a disk A I just add it again?
-In case of success: How can i say RAID now use A disk to "refresh" the left B disk?
Any help is welcome.