topic Changing Primary swap priority in Operating System - HP-UX

Changing Primary swap priority

Jayesh shah — Wed, 23 Jan 2002 15:55:34 GMT

How can I change the priority of primary swap?
through command line?

Thanks,
shah

Re: Changing Primary swap priority

Christopher McCray_1 — Wed, 23 Jan 2002 16:03:20 GMT

I think it's :

# lvlnboot -s /dev/vg??/

Hope this helps

Chris

Re: Changing Primary swap priority

Vladislav Demidov — Wed, 23 Jan 2002 16:03:51 GMT

Hello Jayesh,
You can add that device to /etc/fstab file and modify pri parameter.

Re: Changing Primary swap priority

Kevin Wright — Wed, 23 Jan 2002 16:29:14 GMT

I could be wrong, but I am not sure you can change the priority of primary swap. you can change what device is used for primary swap with lvlnboot, and change th pri for secondary swap in /etc/fstab, and rebooting.

Re: Changing Primary swap priority

Christopher McCray_1 — Wed, 23 Jan 2002 16:31:04 GMT

Here is the -s exerpt from lvlnboot:

-s swap_lv Define swap_lv to be the primary swap volume
the next time the system is booted on the
volume group. swap_lv must be a contiguous
logical volume, and a root logical volume
must have been previously defined with this
command.

The command updates the Boot Data Reserved
Area of each bootable physical volume in the
volume group (see pvcreate(1M)). Any
existing swap area previously defined must be
removed via lvrmboot(1M).

Good luck

Chris

Re: Changing Primary swap priority

Sridhar Bhaskarla — Wed, 23 Jan 2002 16:36:07 GMT

HI Jayesh,

The priority of the primary swap is set to 1 and is not changeable as it is defined through lvlnboot command.

The idea is to give high or equal priority to other swap devices once the system boots. It is also helpful for the diskless clients.

In a nut shell, you would be adjusting the priorities of the additional swap devices.

-Sri

Re: Changing Primary swap priority

A. Clay Stephenson — Wed, 23 Jan 2002 16:42:04 GMT

Hi:

Sridhar is correct; primary swap priority is 1. If you need to swap to other devices at higher priority then set them to 0. Of course, the best scenario is not to swap at all.