R.S. wrote:
>3 for loadlibs (minimum)
>6 for "text" members with ISPF stats
>21 for "text" members without ISPF stats (max.)
>I swear I read the numbers in some IBM documentation, but it was looong
time ago (OS/390 2.6 times).
No need to swear. You are correct of course! ;-D
Source:
Interactive System Productivity Facility (ISPF)
User's Guide Volume II
z/OS Version 1 Release 10.0
Document Number SC34-4823-08
"Directory blocks Enter one of these:
- For partitioned data sets, you must specify the number of directory blocks.
Each 256-byte block accommodates these number of directory entries:
- Data sets with ISPF statistics: 6
- Data sets without ISPF statistics: 21
- Load module data sets: 4-7, depending on attributes"
Another Source:
DFSMS Using Data Sets
z/OS Version 1 Release 10.0
Document Number SC26-7410-08
"Each member in a data set and each alias need one directory entry apiece. If
you expect to have 10 members (10 directory entries) and an average of 3
aliases for each member (30 directory entries), allocate space for at least 40
directory entries.
Space for the directory is expressed in 256-byte blocks. Each block contains
from 3 to 21 entries, depending on the length of the user data field. If you
expect 200 directory entries, request at least 10 blocks."
HTH!
Groete / Greetings
Elardus Engelbrecht
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
