>>> On 1/2/2013 at 03:41 AM, Rob van der Heij <[email protected]> wrote: 
> So it's only for FBA devices (that is VDISK and EDEV for
> most of us) and it requires that the mod_diag driver is loaded.

It can be used for ECKD devices, but they must be in the LDL format, not CDL, 
or they can be CMS FORMATted and RESERVEd.  In either case, that means a single 
partition only.  I don't know if using that single partition for an LVM PV 
would retain the performance benefits of DIAG 250 or not.


Mark Post

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