Mike,
The following is extracted from 'DFSMS Using Data sets':
Using extended addressability, the size limit for a VSAM data set is
determined by either:
t Control interval size multiplied by 4 GB
t The volume size multiplied by 59.
A control interval size of 4 KB yields a maximum data set size of 16 TB,
while a control interval size of 32 KB yields a maximum data set size of
128 TB. A control interval size of 4 KB is preferred by many applications
for performance reasons. No increase in processing time is expected for
extended format data sets that grow beyond 4 GB. To use extended
addressability, the data set must be:
t SMS-managed
t Defined as extended format.
HTH,
David O'Brien
NIH Contractor
-----Original Message-----
From: Ward, Mike S [mailto:mw...@ssfcu.org]
Sent: Wednesday, August 03, 2011 2:35 PM
To: IBM-MAIN@bama.ua.edu
Subject: Vsam Extened Adressability
Hello, all. Can someone please point me to some documentation on
Extended addressability vsam file restrictions. Or if would anyone know
what restrictions we might run into, such as it has to be less than 12
gig etc...
TIA
Mike
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