Free PP's?

Free PP's?

Post by Frederick Reynold » Fri, 25 Feb 2000 04:00:00

I am fairly green in AIX administration and have been looking at our disk
utilization.  From what I've read, I think Free PP's on a physical disk are
not allocated to any volume groups and are effectively just sitting unused
if there are any for possible future use in expanding a volume group.

But I was told by someone else that has a little more experience then me
(but still fairly green) that free PP's are not used but they are actually
already allocated.  So are free PP's kind of like the free space on a
formatted DOS partition, allocated but not currently in use?  This doesn't
seem like what AIX does with PP's from what I've read, but I could have read
it wrong.

Thanks for any clarification!

Frederick Reynolds


1. Should I keep free PP's in a volume group?

I have a volume group OTHER than rootvg which is only used to store
data.  Since it is so difficult to reduce the number of LP's allocated
to a logical volume, I have tried to keep some space free in the volume
group just in case it was needed.

We are now at the point where ideally it would be nice to use all the
space available. My question is:

Do I need to keep any free PP's in my volume group or can I allocate
them all to logical volumes without worrying about needing them later on
for something vital?


Chris Eason

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