At 19:20 -0600 on 12/24/2011, Paul Gilmartin wrote about Re:
Eight-character TSO Userid Support:
Hmmm. How many upper-case alphanumeric characters would be needed
to provide unique identifiers for all the files an enterprise would ever need?
By that metric, 44(8) is more than sufficient.
A dataset name is up to 44 characters long but that is based on a set
of 36 characters (26 letters and 10 numbers) CURRENTLY broken up
into 1-8 character blocks separated by periods. The 8 character
blocks are composed, if I remember correctly of 1 Alpha (A-Z)
followed by 0-7 Alpha (A-Z) and Numeric (0-9) characters. There may
also be some special characters in addition to the 36 (I forget).
For GDG Datasets, the limit is 39(8) since the last 9 are required
for the ".GxxxxVyy" suffix to the GDG File Base Name. What do you
mean by 44(8) anyway?
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