Dynamically building on spare device / boot device.

AndrewJohnson@xxxxxxxxxxx · Fri, 27 Aug 2010 15:10:59 +0100

Hi, 

I'm trying to 
identify the best approach to dynamically identify whether a client has a spare 
disk to build Logical Volumes against or whether I need to deploy them onto the 
rootdisk. At present i've built the post script that deliveries  the 
following:

Validate Volume 
Groups,
If no additional 
Volume Groups available Built on RootVG
Validate Available 
Space and Add LV's

However I'm 
wondering on how to accuratly identify which disk is free and what approach 
should be taken to build a VG on it with removing  the wrong disk, i'm new 
to this so any help would be greatly appreciated, i've tried a couple of %pre 
scripts but assuming rootvg is always going to be on sda isn't always 
true.

Kind 
Regards

Andy

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