1. Dataset Explorer Training
2014

2. Introduction
“Accounts VSAM and non-VSAM datasets accesses into historical views”

3. Data Source Record Description SMF 14 Non-VSAM close for INPUT SMF 15
Non-VSAM close for OUTPUT
SMF 42.6
VSAM and Non-VSAM dataset statistics for SMS files on DASD
SMF 61
Dataset Cataloged (DEFINE)
SMF 64
VSAM component close
SMF 65
Dataset uncataloged (DELETE)
SMF 66
Dataset renamed (ALTER)
DCOLLECT “D”
VSAM and Non-VSAM dataset characteristics on DASD

4. Historical views Target Table name Description NVSAM History dsHist
Non-VSAM usage: EXCP´s, # of closes, job, program
Tape Usage
tapeUsage
Tape dataset details: volser, file-seq
Dataset Sizes
dsSize
DASD Non-VSAM datasets: volser, # of extents, tracks, last reference, creation date
VSAM History
vsHist
VSAM usage: inserts, delete, CA-splits, RLS counters, job, sid
Inventory History
invHist
VSAM and Non-VSAM DCOLLECT information: storage group, size, volser
SMS History
smsHist
DASD dataset performance per interval: response time, cache hits
Catalog History
catHist
Dataset catalog operations: rename, delete, catalog

5. Inventory - DCOLLECT “D”
DCOLLECT “D” records:
storage groups
VSAM and non-VSAM datasets

6. Inventory – SMF 14/15
Fields
Dsname
Volser
Vol sequence
DSORG
RECFM
SMS Mngt class
SMS Data class
SMS Storage class
Device number
Creation date
Expiration date
You can get similar results from SMF 14 and 15 that you normally collect:
non-VSAM only

7. Application Inventory
Group by dataset creation date

8. SMS History Dataset Response times: VSAM and Non-VSAM (SMF 42.6)
including DB2 components: DB name, table and indexes spaces
Records on interval basis (same as SMF 30)
Fields
Dsname
SID
Volser
Jobname
Username
Storage class
WLM class
WLM Workload
Device number

9. Tape Usage
Track your tapes

10. VSAM Usage
VSAM usage grouped by application code (DSNAME substring)

11. Catalog operations Who delete the dataset?
What’s happened with the dataset?

12. Non-VSAM view Non-VSAM view: Dataset usage history;
Storage class usage;
Which jobs access certain datasets;
What datasets the job accessed?
Dsname
UCB type
SID
DSORG
Racf username
SMS management class
Job name
SMS data class
Program name
SMS storage class
Step name
Volumes

13. Non-VSAM flags Non-VSAM flags: Helps a lot; Who create this dataset?
The tape dataset that are accessed as input (read)
Tape
PDSE
Input
Dasd
Cataloged
Output
Temporary
Hiper
New
VIO
Isam
Old
GDG
Delete
Mod
PDS member
Rlse
Shr

14. VSAM view VSAM views: VSAM usage history;
Which jobs access certain datasets;
What datasets the job accessed?
Mostly used VSAM;
Datasets doing a lot of splits
SID
Cluster Name
Jobname
Situation indicator
Dsname
Component type

15. VSAM counters Counters: Use count (opens) EXCP’s Level increments
Hiperbatch SIO’s
Extent increments
Hiperbatch HIT’s
Deletes
Hiperbatch wait’s
Inserts
Physical I/O’s
Updates
CF local
Retrieves
CF xcf
CI splits
CF dasd
CA splits

16. VSAM flags Flags: Flags Description Close Normal close Catalog
ICF catalog
Abend
In Abend processing
Data
Data component
Empty
Set to empty state