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Full Discussion: Releasing the swap space Solaris
Operating Systems Solaris Releasing the swap space Solaris Post 302406397 by jlliagre on Monday 22nd of March 2010 07:01:07 PM
Old 03-22-2010
Quote:
Originally Posted by TonyFullerMalv
Stopping as many process as possible?
Which is conceptually similar to rebooting the OS.
Quote:
The other option is to add some swap space either by adding more raw disk space or else using the swapon(1m) command to make a swapfile in a volume with spare space although that is not as quick as real swapfs swap space.
Unlike most if not all Unix/Unix like variants, swapon isn't the Solaris way. Use instead:
Code:
swap -a <file or device>

Anyway, I'm confused as I already replied to that very same question here but it seems these postings have vanished ...

Just found you posted again the very same question in a new thread, this is pointless and unconstructive. Please follow up in the original one:
Releasing the swap space Solaris
Last edited by jlliagre; 03-22-2010 at 08:17 PM..
 

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LEARN ABOUT HPUX

swapmem_on

swapmem_on(5)							     OBSOLETE							     swapmem_on(5)

NAME

       swapmem_on - OBSOLETE kernel tunable parameter

DESCRIPTION

       The tunable is obsolete.  Processes will always be allowed to use pseudo-swap space if it is available.

       In previous versions of HP-UX, system configuration required sufficient physical swap space for the maximum possible number of processes on
       the system.  This is because HP-UX reserves swap space for a process when it is created, to ensure that a running process never needs to be
       killed due to insufficient swap.

       This  was difficult, however, for systems needing gigabytes of swap space with gigabytes of physical memory, and those with workloads where
       the entire load would always be in core.  This tunable was created to allow system swap space to be less than core memory.   To	accomplish
       this,  a  portion  of  physical	memory	is  set aside as "pseudo-swap" space.  While actual swap space is still available, processes still
       reserve all the swap they will need at fork or execute time from the physical device or file system swap.  Once	this  swap  is	completely
       used,  new  processes  do  not  reserve	swap, and each page which would have been swapped to the physical device or file system is instead
       locked in memory and counted as part of the pseudo-swap space.

WARNINGS

       Installation of optional kernel software, from HP or other vendors, may cause changes to tunable  parameter  values.   After  installation,
       some  tunable  parameters may no longer be at the default or recommended values.  For information about the effects of installation on tun-
       able values, consult the documentation for the kernel software being installed.	For information about optional kernel  software  that  was
       factory installed on your system, see at

AUTHOR

       was developed by HP.

							     Tunable Kernel Parameters						     swapmem_on(5)
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