Linux on 390 Port <[email protected]> wrote on 17.07.2008 16:30:27:
> I hope the zipl command will also be enhanced to work with a multipathed
> LUN ala the multipath-tools package.
There are technical requirements(*) that need to be met by a lv setup
to be supported without completely redoing the current disk IPL
mechanism used for Linux on System z. The aim of any zipl enhancement
into that direction should of course be to include as many of the most
common setups as possible.
> Or by making it support LVM (which relies on device mapper) will it
> automatically support multipathed LUN since multipath-tools also relies
> on device mapper?
That would of course be the preferred solution. Whether all of the
required logic needs to end up in zipl itself or possibly in a wrapper
program is a matter of detail to be investigated.
> zipl -V
> Using config file '/etc/zipl.conf'
> Error: Unsupported device driver 'device-mapper'
That's the safety check I mentioned in my previous post.
Regards,
Peter
* = write access to block 0+, all additional IPL data must reside on a
single disk (or identical clones)
--
Peter Oberparleiter
Linux on System z Development
IBM Deutschland Research & Development GmbH
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