[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] QLogic Fibre Channel HBA Support
> On Sun, Jul 04, 2004 at 10:11:38AM +0100, Ian Pratt wrote: > > > > > Still hunting for better alternatives vs. NFS roots -- does anyone know > > > what I'd need to do to get the driver for QLogic fibre HBA's working, so > > > I can host VBD's from a SAN? > > > > If there's a driver in Linux, it should just work if you use the > > unstable-xeno tree and modify the config for the domain 0 linux > > to add the driver. > > So, how stable is unstable these days? I.E. would you trust it to host > other people's guests? I think Xen and XenLinux 2.4.26 are pretty damn stable -- at least I know of no outstanding bugs that have been posted to the list. The new control tools still have a few stability issues, but since they're restartable its typically not a show stopper. Armed with good bug reports I'm sure Mike will be able to resolve this. There are a few extra features and fixes we need to get into the tools, then I think we'll be ready for a 2.0-alpha release. I'd hope that all users of 1.2 would test it out for us. > > In the new tree, rather than using our own virtual disk code we're > > planning on using standard Linux's standard LVM2 code to enable > > physical partitions to be sliced and diced. The tool support for > > this isn't quite there yet. > > That sounds good -- you mean tools support as in python? I should be > able to help if that's the case. Having other people who understand the new xend and xm tool would be very helpful. It's all a bit to object-oriented for me to understand :-) > > An alternative to using a FCAL SAN is to use iSCSI. I've found > > that the Linux Cisco iSCSI initiator code works nicely, and can > > either talk to a hardware iSCSI target or to the Ardistech Linux > > iSCSI s/w target. I've generally configured it such that the > > domain talks iSCSI directly (using an initrd to enable root to be > > on the iSCSI volume). Others have configured iSCSI in domain 0 > > and then exported the partitions to other domains as block > > devices using the normal VBD mechanism. > > I'd need to use the iSCSI in domain 0 approach (other people's > guests...), haven't tried it due to lack of hardware targets, didn't get > warm fuzzies from Ardistech's code -- you've had no problems with it > though? I've mainly used a NetApp filer h/w target, so I haven't really got enough experience to says whether the Ardistech code is stable or not. There's always enbd, nbd, gnbd which are all simple enough to believe that they work... Ian ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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