[ILUG] Spooky dissappearence of swap space on solaris

From: Conor Daly (conor.daly at domain met.ie)
Date: Fri 22 Jun 2001 - 11:45:26 IST


Odd thing here. We have a sun box running sunOS5.7 which corresponds to
solaris something? Today at 0030 UTC, the machine suddenly stopped
processing various stuff and complained about "no space on /tmp" Its web
server kept on going but users couldn't log in. ps showed nothing unususl
while df -k gave (among others):

Filesystem kbytes used avail capacity Mounted on
swap 1905 28 1875 1% /tmp

That's only 1.9Mb of swap! After a reboot the total swap space went back up
to its expected value of about 170Mb and after about 1 hour is down to the
following...

Filesystem kbytes used avail capacity Mounted on
swap 127352 328 127024 1% /tmp

Questions are:
Why is the partition *size* changing rather than the useage?
How come the "swap" filesystem/partition is mounted on /tmp?
Is there some dynamic "sharing" of /tmp filesystem and swap space going on?
HTF do sun partitioning schemes work anyhow?

TIA

Conor

-- 
Conor Daly 
Met Eireann, Glasnevin Hill, Dublin 9, Ireland
Ph +353 1 8064276 Fax +353 1 8064275
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