Could this "Virtual San" be some modification of the Shared/Byte File System
server? With IPGATE, that could even be used across LPARs via hypersockets and
across physical machines via other TCPIP connections. 

/Tom Kern

--- Rob van der Heij <[EMAIL PROTECTED]> wrote:
> ...snipped...
> On 1/23/07, David Boyes <[EMAIL PROTECTED]> wrote:
> > One area that might be interesting would be to investigate a Linux
> > device driver using CP *BLOCKIO services for disk I/O instead of
> > directly addressing the disks. There would be a performance impact, but
> > the additional layer of isolation would effectively remove any disk
> 
> Most certainly. A high level interface offers gives much more
> flexibility for running the guest. A "Virtual SAN" that offers the
> guest "some blocks of disk" would make things much easier. VM would
> then decide if and where to put the data in the SAN.
> The current approach where intimate details about the disk device
> (like WWPN etc) are kept inside Linux configuration files makes things
> also very hard for what we talk about here.



 
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