VSAM data sets
To display summary information for all open VSAM files, select the VSAM Datasets option (E) on the Files path or enter fast path F.E from any panel.
________________ ZVSAM VTM CICSSP31 V530./C SP22 11/23/13 15:51:03
> PF1 Help PF3 Back PF4 Main Menu PF7 Up PF8 Down PF11 Zoom
> A-Application Datasets B-CICS Datasets C-STEPLIB D-JES Datasets
> E-VSAM Datasets F-LSR Pools G-DFHRPL H-All Datasets
> I-VSAM String Waits J-Journal Datasets K-IMS Datasets L-Select FIles
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> ALL OPEN VSAM FILES
VSAM
+ Number of files selected: 93 Skipped: 0
+ File File Str Wts Str Wts Data Data Data
+ ID Status Current Total Excps CI Split CA Split
+ -------- -------- -------- -------- -------- -------- --------
+ DFHLCD No FCT n/a n/a n/a 0 0
+ DFHGCD No FCT n/a n/a n/a 456 0
+ DFHRSD No FCT n/a n/a n/a 246 1
+ APFH120 Enabled 0 0 80 0 0
+ APFL905 Enabled 0 0 3277 117 13
+ APFM100 Enabled 0 0 5315 179 25
+ CCFM100 Enabled 0 0 182 0 0
+ CCFM200 Enabled 0 0 660 8 0
+ CCFM300 Enabled 0 0 0 0 0
+ CM827 Enabled 0 0 0 0 0
+ DMCUST Enabled 0 0 654 0 0
+ DMDCF Enabled 0 0 0 0 0
+ DMINV Enabled 0 0 0 0 0
+ FCFMGMD Enabled 0 0 634 51 17
+ FCFMPOL Enabled 0 0 98 0 0
+ FCFMTMD Enabled 0 0 310 0 0
+ GLFMBUD Enabled 0 0 0 6 6
+ GLTRX1 Enabled 0 0 0 0 0
+ GMF55 Enabled 0 0 0 0 0
+ GMP11 Enabled 0 0 634 51 17
+ GMP21 Enabled 0 0 0 0 0This panel shows a summary of all open VSAM files:
- ddname or FCT entry name
- Current file status if FCT-defined
- Current number of string waits
- Total string waits since file opened
- EXCPs on the data component
- Number of control interval splits in the data component
- Number of control area splits in the data component
Frequent splits, especially CA splits, can significantly degrade the time to access the file. String waits cause tasks to wait and too many can degrade response time.
To view detailed statistics
on a particular VSAM file, position the cursor anywhere on the line
describing the file and press PF11 or enter the 1- to eight character file
ID following the VSAM statement.
For example, to view details for file APFM910, enter the following
file ID: VSAM APFM910.
The VSAM File Detail panel is displayed in the following figure:
________________ ZZVSAM VTM CICSSP31 V530./C SP22 11/23/13 15:51:03
> PF1 Help PF3 Back PF4 Main Menu PF7 Up PF8 Down
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> FILE DETAIL
VSAM APFM910
+ General Information
+ File dataset name . . . : PROD.FINAPV.APFM910
+ File organization . . . : KSDS ACB address . . . . . . : 007B5BA4
+ Open/close error code . : 0 File is NSR or LSR . . : NSR
+ ACB strings . . . . . . : 2 High water act. strings : 1
+ Active strings . . . . : 0
+
+ Data Component of KSDS Dataset
+ Data Component . . . . : PROD.FINAPV.APFM910.DATA
+ Control area splits . . : 1 Control interval splits : 18
+ Number of EXCPs . . . . : 22684 Control interval size . : 4096
+ Number of records . . . : 476630 Number of inserts . . . : 1186
+ Number of retrieves . . : 953703 Number of updates . . . : 0
+ Number of deletes . . . : 270 Freespace percentages . : 010,025
+ Available space . . . . : 29216768 Allocated extents . . . : 4
+ Volume serial number . : DBCR04 Device address . . . . : 162
+ Allocation type . . . . : Cylinder Primary allocation amt : 25
+ Secondary allocation amt: 17 Maximum record length . : 120
+ Number of I/O buffers . : 3
+ Writecheck used . . . . : No Shareoptions specified : (2,3)
+
+ Index Component of KSDS Dataset
+ Index Component . . . . : PROD.FINAPV.APFM910.INDEX
+ Control area splits . . : 0 Control interval splits : 1
+ Number of EXCPs . . . . : 5037 Control interval size . : 2048
+ Number of records . . . : 54 Number of inserts . . . : 0
+ Number of retrieves . . : 0 Number of updates . . . : 22
+ Number of deletes . . . : 0 Number of index levels : 2
+ Relative key position . : 0 Key length . . . . . . : 48
+ Available space . . . . : 61440 Allocated extents . . . : 3
+ Volume serial number . : DBCR04 Device address . . . . : 162
+ Allocation type . . . . : Track Primary Allocation Amt : 2
+ Secondary Allocation Amt: 1 Maximum Record Length . : 2041
+ Number of I/O buffers . : 2
+ Writecheck used . . . . : No Shareoptions specified : (2,3)
+ Imbed or replicate . . : Neither
+The VSAM file detail panel shows the following information:
- general information such as dsname, organization, ACB information, string information, open/close error code, active strings, and whether the file is using LSR
- data and index component information such as number and type of accesses, splits, freespace, extents, write checks, and share options
- FCT statistics if the file is FCT-defined
- temporary storage or transient data usage statistics if the file
contains TS or TD Note: Depending on the file organization or whether the file uses LSR or NSR, you may receive different data on the panel.