Hal Merritt wrote:
Some performance improvements in that process are included.
Also, a (extra cost?) 'hyper PAV' that uses a 'ucb' from a pool only for
the duration of the I/O. Talk about instant gratification :-)
<snip>
HyperPAV (yes, it costs more for the DS8000 feature) generally requires
the use of fewer PAV aliases, which chew up fewer subchannels. For Big
Honkin' Volumes...er, that is, EAVs, I'd expect that having the systems
manage the PAV aliases dynamically would be a reasonably big plus,
because I'd expect most or all EAVs to have higher peak data rates than
their non-EAV counterparts on the average.
--
John Eells
z/OS Technical Marketing
IBM Poughkeepsie
[EMAIL PROTECTED]
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