Drstic Reduction in Swap Memory Free
 

Hi,

In one of the V210 server we are facing drastic Swap Memory reduction by 1/2 in the short duration of 5 minutes, which causes to reboot the server.

I have checked below points in the server but did not found any abnormailities.

/var/adm/messages
prtdiag
fmadm faulty


Any idea what need to do to resolve this issue ?

Please find herewith some of the real time sar data.
Case I

00:10:01 32941 973744
00:20:00 27665 474382
00:30:00 24255 431115

Case II

02:30:00 37985 1477047
02:40:00 36108 1226702
02:50:00 31989 694052
03:00:01 31593 687700


Thanks
Rajan

Swap memory use shouldn't trigger a reboot. You should monitor the process memory usage to figure out which one is causing the issue:

Update
 

Hi

Yes, you are right, but in my case none of the process related commands were responding in this case, until I reboot.

Only command like ls/date use to work.

But command like ps/top/iostat/prstat is not responding at all.

Thanks
Rajan

Hi proc-sz
 

While checking in sar I found abnormalities in proc-sz value.

02:40:00 88/30000 0 275766/1000000 0 1376/1376 0 0/0
02:50:00 102/30000 0 275766/1000000 0 1472/1472 0 0/0
03:00:01 110/30000 0 275766/1000000 0 1419/1419 0 0/0
03:10:00 122/30000 0 275766/1000000 0 1430/1430 0 0/0
03:20:00 137/30000 0 275766/1000000 0 1474/1474 0 0/0
03:30:00 146/30000 0 275766/1000000 0 1516/1516 0 0/0
03:40:00 154/30000 0 275766/1000000 0 1536/1536 0 0/0
03:50:00 162/30000 0 275766/1000000 0 1592/1592 0 0/0
04:00:00 183/30000 0 275766/1000000 0 1580/1580 0 0/0
04:10:00 189/30000 0 275766/1000000 0 1599/1599 0 0/0
04:20:00 200/30000 0 275766/1000000 0 1604/1604 0 0/0
04:30:00 212/30000 0 275766/1000000 0 1646/1646 0 0/0
04:40:00 220/30000 0 275766/1000000 0 1669/1669 0 0/0
04:50:00 230/30000 0 275766/1000000 0 1703/1703 0 0/0
05:00:00 245/30000 0 275766/1000000 0 1732/1732 0 0/0
05:10:00 252/30000 0 275766/1000000 0 1797/1797 0 0/0
05:20:00 266/30000 0 275766/1000000 0 1792/1792 0 0/0
05:30:00 278/30000 0 275766/1000000 0 1816/1816 0 0/0
05:40:00 286/30000 0 275766/1000000 0 1895/1895 0 0/0
05:50:00 300/30000 0 275766/1000000 0 1883/1883 0 0/0
06:00:00 312/30000 0 275766/1000000 0 1950/1950 0 0/0
06:10:00 327/30000 0 275766/1000000 0 1994/1994 0 0/0
06:20:00 338/30000 0 275766/1000000 0 1995/1995 0 0/0
06:30:01 353/30000 0 275767/1000000 0 2065/2065 0 0/0
06:40:00 359/30000 0 275767/1000000 0 2040/2040 0 0/0
06:50:00 374/30000 0 275767/1000000 0 2065/2065 0 0/0
07:00:00 403/30000 0 275767/1000000 0 2149/2149 0 0/0
07:10:00 411/30000 0 275767/1000000 0 2142/2142 0 0/0
07:40:00 68/30000 0 5170/1000000 0 539/539 0 0/0

Any idea how we can change the default value.

Thanks
Rajan