Don't feel too bad...space reservations takes time to
digest.
Space reservations don't affect your ability to mount
snapshots. Doing fractional reserves is one way
to handle snapshots on LUN volumes. Doing so carries
some risk in that the volume can run out of space
before the LUN does. But if you know your change
rate, you can use fractional reserve if it fits your needs.
Another method you will find customers on 7.1 and later
using is to not use space reservations at all, leaving a
reasonable amount of free space in the volume, then setting
up policies for autogrow and/or auto snapshot delete
in case you run over.
-- Adam Fox
NGS Tools Developer
adamfox@netapp.com
Hello,
I am having the hardest time understanding fractional
space reservations for volumes and lun space reservations.
If I reduce
fractional space reservations to a volume that contain luns, what happens to lun
space reservations? Is there a way to throttle lun space reservations -- as far
as I can tell it's just a check box in Filerview....
The main question I
have is --- does setting fractional space reservation affect my ability to mount
snapshots. I assume that mounting snapshots does not take any space since it's
all read-only.... or am i wrong in assuming this?
My assumption right
now is that fractional space reserve is there if I ever need to mount a snapshot
to be read/write --- am I dead wrong?
Thanks,
Steve