07-09-2009
swap space confusions
hi,
i am a little bit confused over swap space issues on solaris.
what i know is that mostly all solaris swap space is configured on /tmp as a tmpfs.
but i do receive alerts from my monitoring server that one of my server has exceeded 95% treshold. when checked at tmp, it shows only 12%.
see my outputs.
#df -k /tmp
Thu Jul 9 16:24:24 MEST 2009
Filesystem kbytes used avail capacity Mounted on
swap 651664 77288 574376 12% /tmp
#more /etc/vfstab
...
...
swap - /tmp tmpfs - yes size=9003m
#swap -s
total: 17640232k bytes allocated + 131200k reserved = 17771432k used, 575368k available
#top
..
70 processes: 62 sleeping, 4 running, 2 zombie, 2 on cpu
CPU states: % idle, % user, % kernel, % iowait, % swap
Memory: 8192M real, 136M free, 17G swap in use, 561M swap free
So, my question is how do i calculate the real swap usage?
and does my output shows any increase above 95% treshold on swap.
please guide me...thanks guys
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LEARN ABOUT DEBIAN
install-solaris
install-solaris(1M) install-solaris(1M)
NAME
install-solaris - install the Solaris operating system
SYNOPSIS
install-solaris
install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation,
install-solaris invokes either a text-based installer or a graphical installer.
The following minimum requirements for physical memory dictate which features are available during installation:
For SPARC machines:
128 MB
Minimum physical memory for all installation types
128 MB
Minimum physical memory required for windowing system
384 MB
Minimum physical memory required for graphical-based installation
For x86 machines:
256 MB
Minimum physical memory for all installation types
256 MB
Minimum physical memory required for windowing system
512 MB
Minimum physical memory required for graphical-based installation
In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea-
tures available.
install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more
details.
install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
installation media. Refer to the for disk space requirements.
Refer to the for more information on the various menus and selections.
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcdrom (Solaris instal- |
| |lation media) |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
pkginfo(1), install(1M), pkgadd(1M), attributes(5)
It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.
23 Sep 2005 install-solaris(1M)