[Beowulf] Booting fom a SAN disk using FC-over-Iinfiniband

ctierney at hypermall.net ctierney at hypermall.net
Tue Nov 1 19:02:37 EST 2005


Quoting Chris Samuel <csamuel at vpac.org>:

> On Fri, 28 Oct 2005 08:34 pm, Paulo Afonso Lopes wrote:
> 
> > a) Does anybody have any experience on booting an OS (e.g. Linux, AIX)
> > that is installed on a LUN in a disk array and the is on a Fibre Channel
> > SAN?
> 
> I'm booting Ubuntu AMD64 (5.04) on a Dell box from a directly connected Apple
> 
> XServe RAID using the Apple (rebadged LSI) FC copper card successfully.  It's
> 
> a standalone machine rather than anything to do with a cluster though.
> 
> The disks appear as normal SCSI devices and it all just works.
> 
> > b) And what if the host (an IBM JS20 blade) we want to boot is not
> > directly FC-attached to the SAN, but is Infiniband attached to a IB
> > gateway (a TopSpin 90 with the FC gateway module) and the IB switch is
> > connected to an FC switch (8 port Brocade)? Is it still possible to
> > "remote" boot it?
> 

Did you purchase the firmware update to support boot-over-IB?  As of 6 months
ago, Topspin charged for this feature.  

Craig

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