Increase Disk size on RAID 1 (ML370)

[KarveR]

Hi All

OK, I have a Proliant ML 370, it has 3 x 18.2Gig drives configured as Raid 1 (1 logical 18.2gig drive , mirrored with online spare) and runs Redhat linux 7.3.

I need to increase the disk size considerably, so I have me 3 x 76gig replacement drives.

What is the best way of :
1) adding the drives.
a)power off, swap, rebuild rinse and repeat; or
b)whip one out and rebuild a new drive , rinse and repeat.

2) what is teh best method for allocating the addidtional space under Redhat:
a) new partition
b) extend existing partition

3) what are the risks to the data in these processes?

I have read other threads of a similar nature in this forum, but none seemed to cover redhat as the OS, and there seemed not to be a favoured way of changing the disks.

Also will the raid controller config need changing (via smart start) if the size of teh drives changes?

thanks in advance,

karvmonkee


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There's no present like the time, they say. - Henry's Cat.

 

[terry712]

never does this on linux

on netware i would just swap one disk at a time until it has rebuild and then run cpqonlin and this would automatically increase the space and then i would just need to increase the volume sizes

on ms - similar to above except you would need to reboot server to acknowledge new space then use partition magic or such like

no smart start involvement for any