Ed Gould wrote:
on 5/18/05 8:12 AM, Darby, Mark at [EMAIL PROTECTED] wrote:
You'll find it in the "Managing Catalogs" manual. For z/OS 1.6, SC26-7409 (I have the -03 level).
Here's an excerpt from that manual...
Catalog aliases are defined in the master catalog, which contains an entry for the user catalog. The number of aliases a catalog can have is limited by the maximum record size for the master catalog. If the master catalog is defined with the default record sizes, there is a practical maximum of 3000 aliases per catalog, assuming the aliases are only for high-level qualifiers. If you use multilevel aliases, fewer aliases per catalog can be defined.
Regards, Mark
Mark,
3000 seems small (to me). Is this *REALLY* saying 3000 per usercat?
A 3000 gross number seems just to way low, IMO.
The limit is per system.
More exactly: aliases are defined in MCAT, which is one per system. It is possible to define aliases in UCAT, but these aliases are unusable.
As Larry pointed, number of aliases depends on the length of them. The shorter aliases the biggest limit.
The limit for single-qualifier aliases is approx. 3200 (I tested it).
IMHO it is not too much, so - in very large installations - it can be a constraint. For each installation it is worth to remember, to keep proper naming convention.
Just my $0.02 -- Radoslaw Skorupka Lodz, Poland
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