Volume Activity Summary

This panel shows activity information of volumes that contain DB2 objects that are currently allocated and available for use by the Db2 being monitored. Use this information to evaluate the DASD performance by volume.

 
________________ ZOJVS    VTM     O2       V540.#P SE12 11/06/13 10:24:33   2 
> Help PF1      Back PF3      Up PF7      Down PF8     Sort PF10     Zoom PF11 
> O.C                                                                          
>       OBJECT ANALYSIS:  Enter a selection letter on the top line.            
>                                                                              
> A-OBJECT ALLOCATIONS         B-OBJECT ACTIVITY            *-VOLUME ACTIVITY  
> D-EXTEND ACTIVITY            E-DISPLAY OPTIONS            F-COLLECTOR CONTROL
===============================================================================
>                           VOLUME ACTIVITY SUMMARY                            
 OJVS                                                                          
+ Interval Time   = 00:05:00                      Interval Elapsed   = 00:04:48
+ *                                                                            
+             Vol     Vol     Total    DB2       % DB2   Alloc   Alloc   Exts/ 
+ Volume Unit Util%   Serv    I/O      I/O       I/O     DSNs    Exts    DSN   
+ ------ ---- ------  ------  -------  -------   ------  ------  ------  ------
+ PMOSDA 4C2E    .0%      .5        0        0      .0%       1       1     1.0
+ PMOSDB 4C2F    .0%      .4       13       13    22.4%      35      49     1.4
+ PMOSD1 4C09    .0%      .3       14       14    24.1%      51      60     1.1
+ PMOSD2 4C0A    .0%      .0        1        1     1.7%       0       0      .0
+ PMOSD3 4C0B    .0%      .3        3        3     5.1%       1       2     2.0
+ PMOSD4 4C0C    .0%      .3        2        2     3.4%       2       6     3.0
+ PMOSD5 4C0D    .0%      .3       10       10    17.2%      39      60     1.5
+ PMOSD6 4C0E    .0%      .4        5        5     8.6%      44      49     1.1
+ PMOSD7 4C0F    .0%      .5        0        0      .0%      31      38     1.2
+ PMOSD8 4C28    .0%      .3        8        8    13.7%      46      72     1.5
+ PMOSD9 4C29    .0%      .3        2        2     3.4%       1       3     3.0
===============================================================================

If you move the cursor to any entry in a column and press F10, OMEGAMON® XE for Db2 PE will sort on that column.

Navigation

For additional information about

a particular volume, move the cursor to the volume line and press F11 (Zoom). For more information, see the description of panel Volume Database Activity.
related display options, select option E-Display Options. For more information, see the description of panel Display Options For Volume Activity Summary Display.
related topics, select one of the options on the top of the panel.
other topics, use the PF keys.

Fields

Interval Time: The collection interval currently in use by the object analysis collector. At the end of this time interval, the collector resets its collection statistics.
Interval Elapsed: The elapsed time within the current collection interval. It is the period of time for which the displayed information is applicable.
Volume: The name of a volume that contains DB2 objects.
Unit: The address of the volume.
Vol Util%: The volume utilization percentage. This value represents the percentage of time the volume is actually in use.
Vol Serv: The average service time for the volume since the beginning of the collection interval. This field is the sum of the average IOS pending time, the average IOS connect time, and the average IOS disconnect time for the volume. It does not include IOS queue time.
Total I/O: The total number of I/Os for this volume. This value is from an MVS perspective. If the volume is shared by multiple MVS systems, this value might not reflect all I/O activity to the volume.
Db2 I/O: The total number of I/Os (for this volume) originating from the Db2 subsystem being monitored. This is a subset of total I/Os per second if I/O to the volume is also occurring from address spaces other than the DB2 subsystem being monitored.
% Db2 I/O: The percentage of total DB2 I/O that is attributable to the volume. This value is derived by dividing the volume Db2 I/O count by the total Db2 I/O count.
Alloc DSNs: The number of physical Db2 data sets currently allocated as a result of the DB2 spaces residing on the volume.
Alloc Exts: The number of data set extents currently allocated as a result of the Db2 data sets residing on the volume.
Exts/DSN: The average number of allocated extents per allocated data set on the volume.