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pvextend

 
Steven Boyer
Advisor

pvextend

I have a one for one mapping of a LUN on my storage system that is one disk in PV which is the only disk in a VG. We have done the mkdir and mknode but no lvgreate.

The question is if we grow the size of the LUN on the storage system can we use pvextend on the PV to show the increased size.
4 REPLIES
Ivan Ferreira
Honored Contributor

Re: pvextend

In linux, the command is pvresize.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Steven Boyer
Advisor

Re: pvextend

its HPUX 11.11
skt_skt
Honored Contributor

Re: pvextend

there are steps avaialble for increase the LUN size online . But not tested myself so far. Check with you storage support people to get the right document
Steven E. Protter
Exalted Contributor

Re: pvextend

Shalom,

This is a very problematic area of HP-UX.

The only possible, reliable means of making this happen on HP-UX is to reboot the system.

It is possible though after a reboot that the system will still not recognize its new size. With HP storage this is easier. With other vendors it is sometimes impossible to make happen.

The critical part of process of recognizing larger space is pvcreate, which can be a little destructive and should not be used on a physical volume that is already part of a volume group.

With HP-UX, in general, the storage group would present me with new storage at a larger size, which could be recognized after a reboot. Then I had to copy the data across from the old volume to the new, after setting up the logical volume structure and needed file systems.

SEP
Steven E Protter
Owner of ISN Corporation
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