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Re: [Xen-users] ISCSI SAN n Local Swap n Live migration
| To: | Ramon Moreno <rammor1@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] ISCSI SAN n Local Swap n Live migration |
| From: | Javier Guerra <javier@xxxxxxxxxxx> |
| Date: | Thu, 19 Mar 2009 09:42:36 -0500 |
| Cc: | xen-users@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 19 Mar 2009 07:43:17 -0700 |
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On Thu, Mar 19, 2009 at 4:16 AM, Ramon Moreno <rammor1@xxxxxxxxx> wrote: > Has anyone perfected this? :-) > > End goal - > > Have my domUs on ISCSI > Point to swap files on local disk > Be able to perform live migrations. hum... you could move swap temporarily to shared block device, while migrating, and back to local device on the new box: before: - storage: on shared block devices (as /dev/xda) - swap: on local device (/dev/xdb) - one extra unused volume on shared block device (/dev/xdd) to migrate: - mkswap /dev/xdd - swapon /dev/xdd - swapoff /dev/xdb (slow...) - detach /dev/xdb from DomU --- migrate - attach /dev/xdb to DomU - mkswap /dev/xdb - swapon /dev/xdb - swapoff /dev/xdd (slow...) you could skip the mkswap steps if you're reusing the partitions, but it's usually quite fast. -- Javier _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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