topic Re: enlarge RAMDISK in Operating System - HP-UX

enlarge RAMDISK

Alessandro Pilati — Fri, 22 Jul 2005 01:40:49 GMT

Hi to all,
in a situation of a HP Integrity rx2600 hpux 11.23 booting from CD with a temporary shell,
is it possible enlarge the RAMDISK ( only 26 Mb, fulfilled soon with many "loadfile" ), or create it larger than default?

Thank you to all.
Alessandro

Re: enlarge RAMDISK

Devesh Pant_1 — Sat, 23 Jul 2005 12:12:01 GMT

Alessandro,

How are you creating the ramdisk ?
Do you have online JFS installed ??
if not that maybe somethig to consider
How much memory do you have on this rx2600 ?

thanks
DP

Re: enlarge RAMDISK

Florian Heigl (new acc) — Sat, 23 Jul 2005 14:28:52 GMT

I think I remember it's possible.

There a various threads on creating HP-UX boot cd's and from what I remember the ramdisk image size set's the size the image will have.
Enlarging it at runtime is not possible.

I would recommend You to either search the forums or wait for some of the people more experienced in this topic to drop in.

Re: enlarge RAMDISK

Alessandro Pilati — Mon, 25 Jul 2005 02:48:26 GMT

I'm starting with a recovery shell from CD, and I have 2 Gigabytes of RAM...

I think that can be a way by passing some parameters to the vmunix in the EFI phase ( the first argument auto-setted is :IINSTALL ), but I'm not shure of this, I didn't find any clear document about this problem...

Re: enlarge RAMDISK

Florian Heigl (new acc) — Mon, 25 Jul 2005 07:44:59 GMT

hmmm, it might be different on IPF, but i quite strongly recall 'ramdisk image' sets 'ramdisk size' :))

Re: enlarge RAMDISK

Alessandro Pilati — Mon, 25 Jul 2005 08:10:17 GMT

Florian,
can you be more exhaustive?

Thank you!

Re: enlarge RAMDISK

Ted Buis — Mon, 25 Jul 2005 14:07:06 GMT

I don't think ramdisk is generally supported on Integrity. Googling on "hp-ux ram disk" will get you this: http://www.faqs.org/faqs/hp/hpux-faq/section-81.html

I know Tom Lanahan has been working on ramdisk for Integrity servers, but I don't know the current status.
<>

Re: enlarge RAMDISK

John Scheller — Mon, 17 Nov 2008 01:17:29 GMT

The link above that Ted posted for RamDisc no longer works. Here is an updated link:

http://www.ramdisc.com/ramdsk.html

Best Regards,
John