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08-10-2017 07:17 AM
08-10-2017 07:17 AM
HPUX 11.11 How to add disk to Volume
Dear Gurus,
One of our SAN switches has failed. We managed to get the redundant switch online and has reestablished connection to the disk again. The problem we are now facing is that the disk have a new path IDs and our HPUX 11.11 has a problem seeing the "New Pathes". How Do I remove the old disks path from the volume group & add the newly establish paths?
Thank you in advance.
Regards,
Michael R Louw Aka Dippenchunks
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08-12-2017 08:47 AM
08-12-2017 08:47 AM
Re: HPUX 11.11 How to add disk to Volume
If you can see the new disk paths using ioscan -fnCdisk then these are just different paths to the same disks, so no changes are needed to extend the VG with the new paths. All you need to do is run vgextend and specify all the new paths:
vgextend vg123 /dev/dsk/c2t3d4 /dev/dsk/c1t3d4
where: vg123 is the volume group needing the new disk paths
and
/dev/dsk/c2t3d4... are the paths to be added.
You can then use vgreduce to remove the dead links as in:
vgreduce vg123 /dev/dsk/c5t3d4 /dev/dsk/61t3d4
Again, change the VG name and the disk path names to match your system.
Bill Hassell, sysadmin