[fedora-virt] handling guest-service dependencies at boot time elegantly?

Bill McGonigle bill at bfccomputing.com
Thu Jun 11 23:38:43 UTC 2009

On 06/11/2009 04:53 PM, Richard W.M. Jones wrote:
> Common problem, no good solutions.

OK, that's helpful to know I haven't missed the obvious.

> The best advice I think is to change your architecture so that virtual
> machines can cope with other services being unavailable.  Not just at
> boot time, but_any_  time, because you never know when you might need
> to restart your iscsi service.
> NFS can do this with background mounts and so on.  I'm not sure about
> iscsi though ...

NFS root is the next thing on my list to figure out. :)  I'd like to get 
it to the point of only needing /boot on iSCSI, at least until btrfs 
lands.  I should probably mount it sync too, just in case.

Does Xen deal with a device going away and coming back with the same 
name?  Either automatic or via hotplugging would be effective.  I'm 
using /dev/disk/by-path/ names so they should line up correctly at least.

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