02-28-2015
Check vmstat looking at PI column if actual swapping is occurring at a certain moment.
If not, you are fine at this moment (probably not due to free memory available on the machine from your post)
What should worry you that sometime in past swapping occurred and was used by a process(es) which is no longer running.
You might want to consider putting vmstat in cron to monitor your machine to pinpoint the time when swapping occurs, then identify what is being ran to cause such high memory usage.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
All,
I am using SOLARIS 7. I have formated my hard drive to consist of only 150MB of swap space. This isn't enough considering I am running Oracle. How do I create additional swap space?
Please list sources or commands.
PS mkswap doesn't work on my machine. ( I have swap and... (5 Replies)
Discussion started by: SmartJuniorUnix
5 Replies
2. UNIX for Dummies Questions & Answers
Hello,
I would like to know if there is any difference between the pageing space and the swap space.
Thank you in advance. (1 Reply)
Discussion started by: VeroL
1 Replies
3. AIX
how do you get the paging space reduced without rebooting the machine ? the os is aix (2 Replies)
Discussion started by: aaronh
2 Replies
4. UNIX for Dummies Questions & Answers
Plz I need to know how much swap mem free and used i have.
I'm using Compaq Tru64 UNIX V5.1A (rev 1885)
Thanx (1 Reply)
Discussion started by: Lestat
1 Replies
5. Solaris
Can you help. My server sunning solaris 9 on x86 platform pretty much hung for a few hours... I could not use telnet or ssh to the box - it kept refusing connection. A few hours later - I was able to log in again.
The server has not rebooted but here are the first errors in the messages log... (5 Replies)
Discussion started by: frustrated1
5 Replies
6. Linux
Hi,
I want to know how can i free the swap space if it is completely full,
0 mb remaining, (1 Reply)
Discussion started by: manoj.solaris
1 Replies
7. Linux
Hi,
i have done a blunder here, i increased the swap space on Xen5.6 server machine using below steps :-
1056 dd if=/dev/zero of=/root/myswapfile bs=1M count=1024
1057 ls -l /root/myswapfile
1058 chmod 600 /root/myswapfile
1059 mkswap /root/myswapfile
1060 swapon /root/myswapfile
... (1 Reply)
Discussion started by: apm
1 Replies
8. Solaris
Dear All,
I have a swap space of 16G available in Sol 10. I have allocated it as a seperate file system. But when the RAM Is full used , the system gets rebooted and the swap is not being used,.
Any reasons for this.
Rgds
Rj (5 Replies)
Discussion started by: jegaraman
5 Replies
9. Solaris
Hello all,
The issue is
# df -h /tmp
Filesystem size used avail capacity Mounted on
swap 4.0G 4.0G 8.7M 100% /tmp
# du -sh /tmp/
87M /tmp
By now you probably will say that this is open file destriptor issue.
Well no, nothing... (2 Replies)
Discussion started by: click
2 Replies
10. Solaris
hi all
I am having a t5240 server in that zone is there in /var/adm/messages i am getting the following warning
WARNING: /zoneroot/zonename-zone/root/tmp: File system full, swap
space limit exceeded
if a swap is getting full what can i do.
Please use code tags next time for your... (2 Replies)
Discussion started by: nikhil kasar
2 Replies
LEARN ABOUT REDHAT
swapon
SWAPON(8) Linux Programmer's Manual SWAPON(8)
NAME
swapon, swapoff - enable/disable devices and files for paging and swapping
SYNOPSIS
/sbin/swapon [-h -V]
/sbin/swapon -a [-v] [-e]
/sbin/swapon [-v] [-p priority] specialfile ...
/sbin/swapon [-s]
/sbin/swapoff [-h -V]
/sbin/swapoff -a
/sbin/swapoff specialfile ...
DESCRIPTION
Swapon is used to specify devices on which paging and swapping are to take place. Calls to swapon normally occur in the system multi-user
initialization file /etc/rc making all swap devices available, so that the paging and swapping activity is interleaved across several
devices and files.
Normally, the first form is used:
-h Provide help
-V Display version
-s Display swap usage summary by device. Equivalent to "cat /proc/swaps". Not available before Linux 2.1.25.
-a All devices marked as ``swap'' swap devices in /etc/fstab are made available. Devices that are already running as swap are silently
skipped.
-e When -a is used with swapon, -e makes swapon silently skip devices that do not exist.
-p priority
Specify priority for swapon. This option is only available if swapon was compiled under and is used under a 1.3.2 or later kernel.
priority is a value between 0 and 32767. See swapon(2) for a full description of swap priorities. Add pri=value to the option field
of /etc/fstab for use with swapon -a.
Swapoff disables swapping on the specified devices and files. When the -a flag is given, swapping is disabled on all known swap devices
and files (as found in /proc/swaps or /etc/fstab).
NOTE
You should not use swapon on a file with holes. Swap over NFS may not work.
SEE ALSO
swapon(2), swapoff(2), fstab(5), init(8), mkswap(8), rc(8), mount(8)
FILES
/dev/hd?? standard paging devices
/dev/sd?? standard (SCSI) paging devices
/etc/fstab ascii filesystem description table
HISTORY
The swapon command appeared in 4.0BSD.
Linux 1.x 25 September 1995 SWAPON(8)