I am playing with the tunefs command on my test server. I want to
reduce the minfree percentage from 10% to 5% as recommended in the man
pages for filesystems of large capacity. On a few filesystems I may
want to do 3%.
I tried the tunefs for minfree of 5% on 2 filesystems (RAID groups from
a SWXCR card) each about 20GB. The filesystems showed no visible change
with df -k after tuning. tunefs does tell me that the change has been
made, so why don't I see more space available?
Also, tunefs recommends changing the optimization from "-o time" to "-o
space" if you reduce the minfree setting. Do I really need to do this
for an extremely large filesystem? I am planning on making the minfree
change on some 35GB filesystems. I'd like to drop the minfree to 3%
which would leave 900 MB still reserved. I would think that 900MB would
be plenty available space to leave the optimization for time.
Any opinions or experiences?
susrod_at_hbsi.com
Received on Tue Aug 11 1998 - 20:52:03 NZST