I ran into something odd today and I don't know why I didn't notice this
previously.
On the z/OS 3.1 volumes (DLIB and RES), when I select a dataset from the 3.4
dslist of the entire 3.1 dlib volume (in my sample the dataset is AOP.AAOPEXEC
but it happens for every dataset on the volume), I get the dataset allocation
shown in bytes
Data Set Information
Command ===>
Data Set Name . . . : AOP.AAOPEXEC
General Data Current Allocation
Management class . . : **None** Allocated bytes . . : 446,720
Storage class . . . : **None** Allocated extents . : 1
Volume serial . . . : C31DLB
Device type . . . . : 3390
Data class . . . . . : **None**
Organization . . . : PO Current Utilization
Record format . . . : FB Used bytes . . . . : 111,680
Record length . . . : 80 Used extents . . . : 1
Block size . . . . : 27920
1st extent bytes . : 446720
Secondary bytes . . : 83968 Dates
Data set name type : PDS Creation date . . . : 2024/02/08
Data set encryption : NO Referenced date . . : 2024/07/07
Expiration date . . : ***None***
If I go to a z/OS 2.5 dlib volume and display that dataset it shows in tracks:
Data Set Information
Command ===>
Data Set Name . . . : AOP.AAOPEXEC
General Data Current Allocation
Management class . . : **None** Allocated tracks . : 5
Storage class . . . : **None** Allocated extents . : 1
Volume serial . . . : L25DLB
Device type . . . . : 3390
Data class . . . . . : **None**
Organization . . . : PO Current Utilization
Record format . . . : FB Used tracks . . . . : 2
Record length . . . : 80 Used extents . . . : 1
Block size . . . . : 27920
1st extent tracks . : 5
Secondary tracks . : 1 Dates
Data set name type : PDS Creation date . . . : 2021/11/17
Data set encryption : NO Referenced date . . : 2024/07/07
Expiration date . . : ***None***
This seems to happen whether I look at it from the z/OS 2.5 system or from the
z/OS 3.1 system.
Did I miss something about z/OS 3.1 system volumes using bytes instead of
tracks or cylinders to show the data?
If I delete a dataset and reallocate it in tracks, it still shows up as bytes.
This only seems to happen on the dlib and res volumes.
Something new?
Brian
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN
