Steps To Add Swap Space In AIX

1) Run lsps -a command to retrieve all the swap space in the system. #lsps -a Page Space Physical Volume Volume Group Size %Used Active Auto Type Chksum hd6 hdisk2 rootvg 4608MB 81 yes yes lv 0 # 2) Run prtconf and look for hdisk2 physical volume. From below we noticed that there are free PPs so we are able to add more swap space. #prtconf ←-- snipped ----> ===================================================================== rootvg: PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk2 active 639 172 35..00..00..09..128 hdisk3 active 639 172 35..00..00..09..128 ===================================================================== ←-- snipped ----> 3) To check more details on rootvg volume group follow this: #lsvg rootvg VOLUME GROUP: rootvg VG IDENTIFIER: 00f619aa00004c0000000131f69ac173 VG STATE: active PP SIZE: 32 megabyte(s) VG PERMISSION: read/write TOTAL PPs: 1278 (40896 megabytes) MAX LVs: 256 FREE PPs: 344 (11008 megabytes) LVs: 11 USED PPs: 934 (29888 megabytes) OPEN LVs: 10 QUORUM: 1 (Disabled) TOTAL PVs: 2 VG DESCRIPTORS: 3 STALE PVs: 0 STALE PPs: 0 ACTIVE PVs: 2 AUTO ON: no MAX PPs per VG: 32512 MAX PPs per PV: 1016 MAX PVs: 32 LTG size (Dynamic): 256 kilobyte(s) AUTO SYNC: no HOT SPARE: no BB POLICY: relocatable PV RESTRICTION: none INFINITE RETRY: no 4) To add 250MB swap space you need to add 8 PPs(8 x 32MB). # mkps -a -n -s 8 rootvg paging00 # 5)Verify the newly added paging space: #cat /etc/swapspaces * /etc/swapspaces * * This file lists all the paging spaces that are automatically put into * service on each system restart (the 'swapon -a' command executed from * /etc/rc swaps on every device listed here). * * WARNING: Only paging space devices should be listed here. * * This file is modified by the chps, mkps and rmps commands and referenced * by the lsps and swapon commands. hd6: dev = /dev/hd6 auto = yes checksum_size = 0 paging00: dev = /dev/paging00 Check the status using lsps command. #lsps -a Page Space Physical Volume Volume Group Size %Used Active Auto Type Chksum hd6 hdisk2 rootvg 4608MB 78 yes yes lv 0 paging00 hdisk2 rootvg 250MB 0 yes yes lv 0 # Now to remove the paging space, we need to use the below commands. # swapoff /dev/paging00 # # rmps paging00 rmlv: Logical volume paging00 is removed. # #lsps -a Page Space Physical Volume Volume Group Size %Used Active Auto Type Chksum hd6 hdisk2 rootvg 4608MB 78 yes yes lv 0#