Paging Space...............

 

Paging Space

• What is Paging Space:
• Its a secondary storage area for
• Inactive memory
• Over-committed memory
• Hold the Inactive pages on disk
• It is the substitute for real memory

Commands for Paging Space

• Checking the Paging space
• User lsps command with options -a (details information about paging) and -s (summary of paginig space)

               

• Adding a Paging Space
• We can add the pagging space by using mkps command or by using smit mkps

         Example:  mkps  [-a] [-n] [-t type] -s NumLPs Vgname [PVnames]

• Options Used:
• -s NumLPs : Set the size of the new paging in logical partitions
• -a      : Activate the aging space at next restart (adds it to /etc/swapsspaces)
• -n     : Activate the paging space immediately
• -t type : Specifies the type of paging space (lv or nfs)

                                 mkps -s 5 -n -a rootvg hdisk0



• Changing Paging Space:
• We can change the Paging space using command chps   or   smit chps

        Example :  chps [-s] [-d] [number of PP] [Paging name]

• Options Used:
• -d  : delete the logical PP from given Paging space
• -s  : add the LPS to the Paging space

                chps -d 1 paging00   ---It will delete 1 LP from Paging space

                chps  -s 1 paging00   ---It will add 1 LP to paging space

• Removing the Paging Space:  We can remove the paging space by using rmps command
• Syntax  :  rmps 
•  Example   rmps paging01