topic Re: raid in Operating System - HP-UX

raid

Jeff Hagstrom — Wed, 01 Mar 2006 16:11:19 GMT

How can I see if there is any raid setup on this box? 9000/460 running HPUX 11.00.

Re: raid

Mark Greene_1 — Wed, 01 Mar 2006 16:14:50 GMT

Try vgdisplay -v This will show you all the physical disks associated with a volume group. If you have HP-MirrorDisk on the system, you have the potential for software RAID. Do swlist to see if MirrorDisk is in the list.

For hardware RAID, you will have to consider the capabilities of the disk array(s) conneted. Do ioscan to see what's attached.

mark

Re: raid

Sandman! — Wed, 01 Mar 2006 17:31:17 GMT

Jeff,

Would help if you tell the kind of storage device your server's connected to.

cheers!

Re: raid

Rick Garland — Wed, 01 Mar 2006 17:35:26 GMT

Investigation of the storage appliance is use will reveal the information. Example, on an EVA you would like at the properties of the virtual disk.

Re: raid

rayche — Wed, 01 Mar 2006 21:03:08 GMT

You can use ioscan -funC disk command to find all disk, you will find if you have external RAID disk from disk type, or you can use ioscan to find all io path

Re: raid

Alzhy — Wed, 01 Mar 2006 23:02:52 GMT

What RAID setup? Do you mean if there are any Host Based RAID set up? RAID can be RAID5 (stripe w/ rotating parity as protection), RAID0 - stripes (performance), RAID1 (redundancy/mirroring) or RAID10 or 0+1 (striping+mirroring).

Iff you want to find out if any software RAID is setup,

If system is running LVM:

vgdisplay -v (and observe the output for any RAID objects)

If system is running VxVM:

vxprint -Aht (output should be self explanatory).

If you want to maonitor HW Raid configuration -- I believe this is all dependent on the array and whether the OS has agents or subsystems that allow it to be "looked" at and configured through the OS. One such array is the HP AutoRAID - where va SAM, you can look at the RAID config.

HTH.