From: Stocker, Nick (nick.stocker@logicacmg.com)
Date: Thu Jun 21 2007 - 05:36:40 EDT
I am configuring a system with lots of Swap space (eventually 130GB
swap).
Currently I have just 35GB of swap but I am already getting this message
at boot-time:
NOTE: Unable to set kernel tunable to account for all the swap space
on the
system. There will be some swap space which will not be usable
on the
final system and messages may appear on initial startup. In
order to
use all the swap space the kernel tunable swchunk will have to
be
adjusted upward post-install.
swchunk is currently set to the default value of 2048 but I have seen
something saying you shouldn't change this from the default !!
Also, what's happened to "maxswapchunks" - that doesn't appear on my
system (which is an rx8640, running HP-UX 11.23) therefore it's hard to
know what to set swchunk to?
Any ideas - is there really a downside to creating it too big?
Ideally I'd like to set it to a value large enough to be able to
accommodate 130GB of swap.
Any advice would be welcomed.
Thanks
Nick Stocker.
LogicaCMG
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