[Users] Migration after kernel upgrade
Scott Dowdle
dowdle at montanalinux.org
Wed Jun 9 22:34:26 EDT 2010
Greetings,
----- Original Message -----
> Hello,
>
> I'm wondering about the kernel version requirements when migrating a
> container from one HN to another HN.
>
> Suppose I have 2 HN's with the exact same kernel. I have one
> container, running on one of these HN's which I don't want to bring
> down. Some time
> later a kernel update comes out. I upgrade the HN which is idle.
>
> Will it be possible to migrate the container online to the idle HN
> after the kernel upgrade?
>
> If not, how am I supposed to prevent downtime to this container
> without missing critical kernel upgrades?
>
> Thanks for helping!
Generally I haven't had a problem migrating from one machine to another of the same branch (ie RHEL4 to RHEL4, or RHEL5 to RHEL5). Others might work but I haven't tried them. For the last couple of years all of my machines have usually been only one minor release behind each other as I practice the scenario where there is an upgrade released, I migrate the containers, upgrade, reboot, migrate back. Works for me.
TYL,
--
Scott Dowdle
704 Church Street
Belgrade, MT 59714
(406)388-0827 [home]
(406)994-3931 [work]
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