> Post, Mark K wrote:
>
> >Would this be the same as the support for accessing storage arrays
> >using SCSI over FCP?  If so, what you need is the FCP driver, and the
> >native SCSI support.

Nope, different animal entirely. iSCSI is block devices over IP, not
FCP.

Scorch, the EMC iSCSI code will build under L/390, but I have not tested
it much. I've also tried the iSCSI code that IBM provides for their
iSCSI device, but again, it builds and loads, but other than saying
'gee, that seemed to work' I don't think anyone's done much with it.

Biggest issue is the relatively small bandwidth you can get out of the
390 network adapters. Typically you'd do iSCSI over Etherchannel with
multiple physical adapters in the discrete world; you don't have that
option in 390-land (unless you're using CIP/CPA adapters).

Also, using iSCSI effectively is *really* dependent on devices honoring
the TCP QoS bits.  You probably couldn't do it effectively w/o
dedicating OSA ports to guests, which gets a bit pricey.

-- db

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