Improper mirrored disks. 1

[jxfish2]

I just took over a system, where the internal system disks have been mirrored, but the mirrors are on the same controllers, instead of separate controllers, as they should be for redundancy.

I have never "swapped" mirrored disks to alternate controllers before.

I'm guessing that there could be more than one way to do this, but would like input or suggestions from the experts on this forum.

I could:

1) break the mirrors
2) format the alternate disks
3) vgcfgrestore to the alternate disk
4) activate the volume group - vgchange
5) mkboot - ( In the case of the boot disk )
6) lvlnboot - ( In the case of the boot disk )
7) vgsync

Would I really need to format the alternate disks, before attempting a vgcfgrestore to the alternate disks?

Does anyone know of another way to move the alternate disks to the secondary controller?

TIA

Joe

 

[bi]

I would think you could bring the unused disk that is on the other controller into vg00 as a boot disk, make a third copy, break the second copy away, remove it from the volume group and then do the commands to tell the OS that it has a new alternate boot disk.

I don't know if that would be faster or better than what you are suggesting, but it would at least keep the disks mirrored during the entire process.

 

[jxfish2]

Unfortunately, all of the internal disks are mirrored. They're just mirrored across the wrong controllers...

Joe

 

[cakonnor]

jxfish2

I think your steps will work perfectly.