Mark Post wrote:
>>> On Tue, Feb 27, 2007 at 9:47 AM, in message
<[EMAIL PROTECTED]>, "Levy,
Alan" <[EMAIL PROTECTED]> wrote:
-snip-
I have about 30 linux servers, each with about 1G swap on physical dasd.
Can I use Vdisk for each of them ?
Others have answered the questions you asked. I'm going to ask questions of my
own...
Why do you have 1GB of swap defined for each guest? That sounds far too high for most uses. Are
you following the rule of thumb to use "twice the amount of physical RAM?" If so, you
shouldn't be doing that. It's not even valid in the midrange world any more, although a lot of
people supporting those kinds of systems haven't gotten the memo yet. In the last major Intel
deployment I was involved with, the consultants from the third-party intermediary insisted that we
do that for systems with 8GB, 16GB, etc., even though the amount of swap space actually being used
on the systems was *zero*. "This is what Oracle recommends, so we want you to do that."
I fought it, but the account manager caved, finally.
IMV it's always been nonsense. I could never comprehend why, if my
Pentium (i586) system was running will with 64 Mbyte RAM and (say) 64
Mbyte swap, and I add another 64 Mbyte RAM (alright, it was an AMD-K6) I
suddenly needed more swap.
I recently bought a Thinkpad R40 with 256 Mbytes of RAM. I added 1 Gb.
Why do I need swap?
(I might, when I figure out this Xen virtual networking and start
running a dozen baby penguins, but that's a while off).
--
Cheers
John
-- spambait
[EMAIL PROTECTED] [EMAIL PROTECTED]
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