adding memory to Vaxstation II/RC: do I need to rebuild Ultrix?
Alan's Home for Wayward Notes File.
alan at shodha.enet.dec.com
Sun May 5 12:46:56 AEST 1991
In article <1991May4.140144.22763 at athena.mit.edu>, mlevin at jade.tufts.edu writes:
>
> Please reply to mlevin at jade.tufts.edu.
I'll try.
> I have a VaxStation II/RC, with two 4 Meg memory boards. I want to
> replace one of these with an 8 Meg memory board. Once I do, do I
> need to rebuild Ultrix again, or can I simply turn it on after
> that?
At least for ULTRIX V4.x and V3.x there was only interesting
value for physmem in the configuration file; 64 MB. Under
64 MB the system page table would be sized one way and above
that it would be sized another. I think that was the only
place it would be used.
For documentation purposes it probably wouldn't be a bad
idea to update the configuration file, but there's no
need to rebuild the kernel.
> And, what about the swap space - do I need to make that bigger
> to match the bigger memory? If so, how? I would greatly appreciate
> any help on the matter.
IF your memory usage habits don't change and you're not
running out of page/swap space now, it's unlikely you'll
run out of page/swap space after adding memory. Hopefully
you'll just page less. The problem is that "IF". Once
you discover you have the memory to spare, you'll probably
find a way to use more. At that point you may find your-
self with an "out of core" message and you'll need to config-
ure more page/swap space.
>
> Mike Levin
"Applications will expand to consume all available resources."
--
Alan Rollow alan at nabeth.cxn.dec.com
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