Decrace swap

[Claude Lanouette_1]

Hi,

HP-UX 11i v31

I need help for decrase the swap/dump from 8192 to 4096 in /dev/vg00/lvol2

If a go to sigle user mode the swap steel active or not

Were i can find the step for.

Tanks

Claude

[James R. Ferguson · Accepted solution]

Hi Claude:

This is your primary swap and you can't decrease it --- it's always "in use".

If the issue is that you want more free space on vg00 for non-operating-system (OS) logical volumes, resist that temptation! Volume group zero (vg00) should only have the standard logical volumes belonging to HP-UX. This makes potential server recoveries, server OS upgrades, and server cloning cleaner and easier than if you add non-OS logical volumes to volume group vg00.

Regards!

...JRF...

[TY 007]

Hello,

Assisted my colleague last month on similar action.

1. Boot to LVM Maintenance Mode

2. # vgchange -a y /dev/vg00

3. # lvreduce -L 4096 /dev/vg00/lvol2

4. # lvdisplay /dev/vg00/lvol2

5. # lvdisplay -v /dev/vg00/lvol2

Thanks

[Claude Lanouette_1]

Hi,

How can i boot to LVM Maintenance Mode!

Thanks.

[Steven E. Protter]

Shalom,

All swap changes require a reboot to take effect.

You can use sam to decrease it but it won't change anything until you boot.

SEP

[Geoff Wild]

LVM Maintenance mode - Reboot system.

On console:

Interact with IPL> Y

IPL> hpux -lm


Rgds...Geoff

[DCE]

Claude,

Please be aware that you may affect your systems performance by decreasing the swap on vg00 without either activating psudo-swap, or adding swap in a different vg - especially if you have more than 4GB of memory.

[Claude Lanouette_1]

Thanks all.