Re: [squid-users] Re: False disk full errors

This is a known Solaris2.6 bug and the larger filesystem the worse it gets.
The problem is that newfs is passes a to large number for "cylinders per cylinder group" as a parameter to mkfs.
The newfs manual states:

         -c cgize The number of cylinders per cylinder
                         group (ranging from 1 to 32). The
                         default is 16.

But newfs passes values much larger than 32 to mkfs. I have seen 256!
I solved the problem by using a value <= 32 like:

newfs -v -c 16 /dev/....

Without the "-c 16" I couldn't fill more than 80% on a 4GB fs (as root and regardless of the minfree value)
and 90% on a 2GB fs.

An easy test is:
# df -k
# cat </dev/zero > /mountpoint/foo
cat: output error (..... characters written)
No space left on device
# df -k
# rm /mountpoint/foo

If you are root you should be able to fill up every byte (capacity 110% with 10% minfree)
("kbytes" and "used" should be equal (or at least very close))

Pål

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Addr: Pål Baltzersen, ElTele Øst AS, Sandakervn. 114B, N-0483 Oslo.
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mail: pb@ost.eltele.no pal.baltzersen@ost.eltele.no
Received on Wed Oct 07 1998 - 10:55:36 MDT