Unterschiede zwischen den Revisionen 7 und 8
Revision 7 vom 2009-02-04 12:31:42
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Revision 8 vom 2011-11-05 08:39:28
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= Hints =
* set fixed amount of mem for dom0 appending following to kernel parameter:
 * {{{
dom0_mem=512M
}}}
 * also: "''The next step is to configure xend to make sure dom0 memory is never ballooned down while starting new guests.

This can be done by editing /etc/xen/xend-config.sxp and modifying the "dom0-min-mem" option to (dom0-min-mem 512) and also change the "enable-dom0-ballooning" option to (enable-dom0-ballooning no). These options will make sure xend never takes any memory away from dom0.''"
  * http://wiki.xen.org/xenwiki/XenBestPractices
* give dom0 more CPU weight (needed for IO requests -otherwise all domU equal dom0)
 * {{{
xm sched-credit -d Domain-0 -w 512
}}}
 * http://wiki.xen.org/xenwiki/CreditScheduler

TableOfContents

Neue Domain anlegen

Schritte die für eine neue virtuelle Instanz notwendig sind. Ausgehend von unserem derzeitigen Setup.

  • siehe: [wiki:senselab/systemausfall/ThoraxNeuesDomu]

Upgrade-Beschreibugen

Hints

* set fixed amount of mem for dom0 appending following to kernel parameter:

  • dom0_mem=512M
  • also: "The next step is to configure xend to make sure dom0 memory is never ballooned down while starting new guests.

This can be done by editing /etc/xen/xend-config.sxp and modifying the "dom0-min-mem" option to (dom0-min-mem 512) and also change the "enable-dom0-ballooning" option to (enable-dom0-ballooning no). These options will make sure xend never takes any memory away from dom0."

* give dom0 more CPU weight (needed for IO requests -otherwise all domU equal dom0)


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