Changing swap on hpux 11i

[David Cassin]

I've got an rp4440 running HP-UX11i and VxVM, and need to alter the swap size on the volume /dev/vx/dsk/rootdg/swapvol.

What is the best way of doing this?

[Patrick Wallek]

Are you trying to increase it or decrease it? If you are trying to increase, it would be much much easier to create a new swap volume and then just do a 'swapon' to activate.

If you are trying to decrease it, I think you may have to use an ignite tape and reinstall the server.

[Geoff Wild]

If you want to change it - then you need to re-ignite the server - and modify the disk sizes...

If you want to add more - then just create another swap volume.

http://docs.hp.com/en/5991-0607/ch05s09.html

Rgds...Geoff

[David Cassin]

i'm trying to increase swap, but i want to have one contiguous swap volume.

so if i create a new volume, swapvol2 for example, and run swapon to add it, is it possible to remove the original swap volume, swapvol, without re-igniting the box?

[Deoncia Grayson_1]

You can remove the other swap space without having to re-igniting but you will have to reboot the box after doing so.

[Victor Fridyev]

Hi,

If the swap is not on the system disk, you can create a new contigious volume for it. Don't create two swap volumes on the same physical disk.
Theoretically you can extend the existing swap volume, if the extended one is contigious

HTH

[David Cassin]

Deoncia,

what command do i use to remove the original swapvol? leaving swapvol2 as the primary swap?
i havent been able to find one so far.

[Deoncia Grayson_1]

David,

comment it out from fstab, reboot, then lvremove - or just use SAM

[David Cassin]

I'm using VxVM not LVM, so i can't do this.

Anyhow, i've taken the option of re-igniting the box and configuring the swap at build time.

Thankyou for all the comments.

[David Cassin]

I'm going to re-ignite the box, and set the swap at buld time.

Thank you for all the comments.