Author: enrico-sorichetti
Subject: Reply to: Redefine SYS1.PROCLIB
Posted: Tue May 23, 2017 9:12 pm (GMT 5.5)
so that the same number of directory blocks will be able to handle 3 times the number of members
generally a directory entry is
8 bytes for the member name
3 bytes for the TTR ( 2 bytes for the track 1 byte for the record ) offset
1 byte for flags and the length of the user data
for load dataset is a bit more complicated
( some load module related info is contained in the user data part of the directory entry)
for fb/vb datasets the entry size depends on the ispf statistics being there or not
each entry will be
12 bytes without statistics
42 bytes with statistics
the ispf statistics are 15 halfords, 30 bytes
so each directory block will contain ..
21 entries without statistics
6 entries with statistics
anything between for the mixed case
_________________
cheers
enrico
When I tell somebody to RTFM or STFW I usually have the page open in another tab/window of my browser,
so that I am sure that the information requested can be reached with a very small effort![icon_cool.gif]()
Subject: Reply to: Redefine SYS1.PROCLIB
Posted: Tue May 23, 2017 9:12 pm (GMT 5.5)
| Quote: |
| Could you please explain me why I must to delete statistics of SYS1.PROCLIB members ? |
so that the same number of directory blocks will be able to handle 3 times the number of members
generally a directory entry is
8 bytes for the member name
3 bytes for the TTR ( 2 bytes for the track 1 byte for the record ) offset
1 byte for flags and the length of the user data
for load dataset is a bit more complicated
( some load module related info is contained in the user data part of the directory entry)
for fb/vb datasets the entry size depends on the ispf statistics being there or not
each entry will be
12 bytes without statistics
42 bytes with statistics
the ispf statistics are 15 halfords, 30 bytes
so each directory block will contain ..
21 entries without statistics
6 entries with statistics
anything between for the mixed case
_________________
cheers
enrico
When I tell somebody to RTFM or STFW I usually have the page open in another tab/window of my browser,
so that I am sure that the information requested can be reached with a very small effort
