topic Re: decrease swap size in Operating System - HP-UX

decrease swap size

Tina Waitherwerch — Wed, 11 Sep 2002 17:41:47 GMT

I reread the rules for setting up swap. I have 2 swap areas on 2 diff physical disks, but the 2 are not of similar size. I would like to decrease the size of one swap and create another swap of equal value on another physical disk. The swap I want to decrease is type device swap. I removing the LV and and creating a new LV swap the only way?

Also, does it hurt to have bad block relocation set on LV swap if this option is ignored?

Re: decrease swap size

Martin Johnson — Wed, 11 Sep 2002 17:45:45 GMT

You have to reboot the system to remove swap. Delete or comment out any references to the swap area you want to remove in /etc/fstab, then reboot.

After the reboot you can delete the LV and recreate it in the size you want.

HTH
MArty

Re: decrease swap size

Deshpande Prashant — Wed, 11 Sep 2002 17:46:06 GMT

Hi
Removing swap will need rebooting the system.
Just coment out the swap entry in /etc/fstab file and reboot the machine.
Then you can delete the swap lvol. Addition of new swap can be done online.

Thanks.
Prashant.

Re: decrease swap size

steven Burgess_2 — Wed, 11 Sep 2002 17:47:36 GMT

Hi

With HPUX you have to reboot the system to get rid of the swap space. reduce the lv then remount

HTH

Steve

Re: decrease swap size

Sandip Ghosh — Wed, 11 Sep 2002 17:49:37 GMT

By the way, there is no necessity to make the swap of same size, but there is a necessity to have the swap of the same priority.

Sandip

Re: decrease swap size

Sean OB_1 — Wed, 11 Sep 2002 17:59:32 GMT

To decrease the size of swap you'll need to comment or remove the entry from /etc/fstab.

Then reboot the system.

After that you can lvremove the volume and recreate it with the size that you want.

HTH

Sean