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Full Discussion: swap space confusions
Operating Systems Solaris swap space confusions Post 302332526 by cromohawk on Thursday 9th of July 2009 10:39:14 AM
Old 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 BSD

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)
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