I have never dealt with a 7137, but generally speaking if you are adding
new drives, you cannot simply make them a part of the existing RAID array if
it is a RAID5 array. If you wanted to maintain a single Logical drive
(hdisk1) then you would have to backup all the data on hdisk1, blow it away
and recreate it with the three additional disks as part of it. Then you
would have to restore the data to hdisk1. Not a task I would want to do.
I would suggest just creating another Logical disk (hdisk2??) that would
consist of the three new drives. If this is a RAID5 araay, then you will not
gain the total capacity of the 3 disks, but rather only the capacity of 2 of
the disks. The third disk will contain information such that if any of the
other disks were to fail, no information would be lost.
i.e. 3 - 4.5GB disks in a RAID5 array = 9GB of usable space
There should be a section in smitty to help you configure the RAID array.
Try something along the lines of
smitty disk_array to see if that doesn't take you into a menu for
configuring the raid array.
> We have an IBM 7137 RAID that we want to add 3 additional drives to. I
> the instructions on how to physically add the drives to the RAID, but I'm
> not sure what to do on AIX (ver 188.8.131.52) to make the new space recognized
> and usable. Our RAID is setup as a single drive (hdisk1) with multiple
> logical volumes none of which are in the rootvg. Will I have to restore
> data to hdisk1 after adding the new drives and is there anything special I
> have to do on AIX to make the additional drives usable?
> Michael McLeod
> Randolph County Computer Services
> Asheboro, NC