Hi,
A client has just bought a new POWER6 520, with 4 internal SAS disks (140 GB).
The server was already installed, with rootvg on a single disk (hdisk0).
They didn't want to make mirror, because they don't want to use two 140 GB disks only for rootvg, so they decided to make a raid5 with all 4 disks, using rootvg for OS and for apps and data.
What they've done is:
- create a raid 5 array with 3 disks --> this created hdisk1 (266 GB)
- mirror rootvg from hdisk0 hdisk1, and then break the mirror removing hdisk0 from rootvg
- add hdisk0 to the array, leaving hdisk1 only
The problem is that AIX is still seeing hdisk1 as 266GB big, but if we go to smit menus (SAS array), we see that hdisk1 is composed of 4 disks, and should be bigger.
Is there a way to tell AIX that this disk is bigger?
We've seen in smit menus the "Recreate raid array" option. Can we do this on this array, having rootvg on it?
If there is no other option, we're thinking about reinstalling. Now the 4 disks raid array is created, so we think the installation should see it (or not?), so it should install rootvg on the 4 disks.
What are my options?
Thanks.
A client has just bought a new POWER6 520, with 4 internal SAS disks (140 GB).
The server was already installed, with rootvg on a single disk (hdisk0).
They didn't want to make mirror, because they don't want to use two 140 GB disks only for rootvg, so they decided to make a raid5 with all 4 disks, using rootvg for OS and for apps and data.
What they've done is:
- create a raid 5 array with 3 disks --> this created hdisk1 (266 GB)
- mirror rootvg from hdisk0 hdisk1, and then break the mirror removing hdisk0 from rootvg
- add hdisk0 to the array, leaving hdisk1 only
The problem is that AIX is still seeing hdisk1 as 266GB big, but if we go to smit menus (SAS array), we see that hdisk1 is composed of 4 disks, and should be bigger.
Is there a way to tell AIX that this disk is bigger?
We've seen in smit menus the "Recreate raid array" option. Can we do this on this array, having rootvg on it?
If there is no other option, we're thinking about reinstalling. Now the 4 disks raid array is created, so we think the installation should see it (or not?), so it should install rootvg on the 4 disks.
What are my options?
Thanks.