Hi, Rob.
On 12/09/2009 03:28 AM, Rob van der Heij wrote:
On Tue, Dec 8, 2009 at 10:33 PM, Dave Jones<[email protected]> wrote:
A z/VM Linux guest user id might have several of these swap files
available on it's 191 CMS minidisk, allowing a user to select which
flavor of Linux they'd like resumed to meet their specific needs.
Have a good one.
Watch it, Dude! Your process virtual memory saved in swap space
should match whatever was on disk when you froze your penguin...
Absolutely true; they must match or the results when the Linux guest is
thawed out will be less that pleasant....
If you're going to do bizarre things, then why not stop the penguin
as-is without suspend and copy its primary address space, the vmdbk,
the swap disk, the I/O's in progress, the timers set to fire... and
the phone number of the local shrink in Endicott who signed an NDA
with IBM :-)
coupled with a prescription or two for some powerful psychoactive
drugs....:-)
Really, look at what you want to achieve and do your experiments to
verify the numbers.
:anecdote type=funny.
Some time ago I was sitting in a presentation where the vendor
explained about his "luke warm" servers that were running along, ready
to deploy the application that ran on a machine that died (key part of
the HA configuration). The waste of resources for all these java
agents waiting for their master was initially not understood (well,
the server has nothing else to do but wait) and then justified by the
time saved to boot Linux, so you only had to start the WebSphere
application. The chap had to sit down when the customer told him the
average server boots in 2-3 seconds to the root prompt, but WAS taking
minutes after that. He started to ask about memory test and power-on
self test, but the customer had pretty much lost interest in his
solution by then.
Rob
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Dave Jones
V/Soft
www.vsoft-software.com
Houston, TX
281.578.7544
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