Component Report - Database Journaling Summary

The Database Journaling Summary section of the Component report provides information about the journal activity on the system.

This information is helpful in understanding the trade-offs between the following:

The Database Journaling section summarizes the journaling activity resulting from user-initiated activities and from system-managed access-path protection (SMAPP) support. This includes the following information:

The Extended Database Journaling Summary subsection shows information about counters in the QAPMJOBMI file during the specified collection interval.

Example

                                                          Component Report                                        10/02/03 17:12:15
                                                    Database Journaling Summary                                           Page 351
                                               Perf data from 14:00 o 16:00 at 1 min
Member  . . . : Q275140000 Model/Serial  . : 890/10-3907F       
Main storage . . :   56.4  GB Started . . . . :  10/02/03 14:00:00
  Library . . : PTLIBV5R3  System name . . :ABSYSTEM            
Version/Release  :    5/ 3.0  Stopped . . . . :  10/02/03 16:00:00
Partition ID  : 003        Feature Code  . :7427-2498-7427      
Int Threshold  . :    .00 %
Virtual Processors:   4    Processor Units :   4.0
       ------- Journal Operations ------   --- Journal Deposits ---   Bundle   Bundle   --Exposed AP --   --Est Exposr --
 Itv   User     User     System   System   User     System   System   Writes   Writes   System   Not      Curr     AP Not   SMAPP
 End   Starts   Stops    Starts   Stops    Total    Total    ToUser   User     System   Jrnld    Jrnld    System   Jrnld    ReTune
-----  ------   ------   ------   ------  -------- -------  -------  -------  --------  ------   ------   ------   ------   ------
14:00       0        0        0        0      1143     179      168      176         0       6       52       57    4,372        0
14:01      11        1        0        0      1757     251       54      355        64       6       51       39    4,309        0
14:02       8        0        0        0      2418     217       57      426        52       9       57       57    6,193        0
14:03       1        1        0        0      2726     136      130      549         0       6       54       39    4,310        0
14:04       0        0        0        0      2346     425      353      325        20      10       57       57    6,799        0
14:05       6        0        0        0       534     197        6       67        56      10       57       57    6,799        0
14:06       3        2        2        0       579     231       60       98        38       8       52       27    4,310        1
14:07       7        0        0        0      1635     511      156      252        80       8       55       37    4,373        0
14:08       0        0        0        0      1161     252       70      233        28       8       55       27    4,310        0
14:09       8        1        0        0      3425     682      152      641       141      12       47       27    6,736        0
14:10       4        0        0        0      3861     329       73      697        42      12       50       37    6,799        0
14:11       1        0        0        0      5626     359      106     1017        42       8       50       37    4,373        1
14:12       0        1        0        0      3718     282       50      680        42      12       50       37    6,799        0
14:13       0        0        0        0      5590     296       59      980        44       8       47       27    4,310        0
14:14       0        0        0        0      4581     168      122      914        10       8       47       27    4,310        0
14:15       1        1        0        0      3320     162      161      549         0      12       50       37    6,799        0
14:16       0        0        0        0      5741      33       28     1743         0      12       64       37    6,800        0
14:17       1        1        0        0      6735      22       16     2565         0       8       50       27    4,310        0
Itv End                 --  Interval end time (hour and minute)
User Starts             --  Start journal operations initiated by user
User Stops              --  Stop journal operations initiated by user
System Starts           --  Start journal operations initiated by system
System Stops            --  Stop journal operations initiated by system
User Total              --  Journal deposits resulting from user journaled
                              objects
System Total            --  Journal deposits resulting from system journaled
                              objects (total)
System ToUser           --  Journal deposits resulting from system journaled
                              objects to user created journals
Bundle Writes User      --  Bundle writes to user created journals
Bundle Writes System    --  Bundle writes to internal system journals
Exposed AP System Jrnld --  Exposed access paths currently being journaled
                              by the system
Exposed AP Not Jrnld    --  Exposed access paths currently not being journaled
Est Exposr Curr System  --  System estimated access path recovery time
                              exposure in minutes
Est Exposr AP Not Jrnld --  System estimated access path recovery time
                              exposure in minutes if no access
                              paths were being journaled by the system
SMAPP ReTune            --  System Managed Access Path Protection tuning
                              adjustments
.
.
.
                                                      Component Report                                        10/02/03 17:12:15
                                                Extended Database Journaling Summary                                      Page  355
                                               Perf data from 14:00 to 16:00 at 1 min
Member  . . . : Q275140000 Model/Serial  . : 890/10-3907F       
Main storage . . :   56.4  GB Started . . . . :  10/02/03 14:00:00
  Library . . : PTLIBV5R3  System name . . :ABSYSTEM            
Version/Release  :    5/ 3.0  Stopped . . . . :  10/02/03 16:00:00
Partition ID  : 003        Feature Code  . :7427-2498-7427      
Int Threshold  . :    .00 %
Virtual Processors:   4    Processor Units :   4.0
       --------- Journal Operations --------   ---------- Journal Deposits ---------                             Bundle  Bundle
 Itv   Commit       Decommit     Physical      Non          SMAPP        SMAPP         Perm         Transient    Wait    Wait
 End   Ops          Ops          Writes        SMAPP        User         System        Size         Size         Pct     Count
-----  -----------  -----------  -----------   -----------  -----------  -----------   -----------  -----------  ------  ---------
14:00          316            0          292          1142          168           11          5843         7971     .00        157
14:01          382            0          452          1757           54          197          4054         3120     .00        427
14:02          546            1          515          2418           57          160          5050         3436     .00        531
14:03          655            0          637          2726          130            6          7143         6626     .00        575
14:04          643            2          577          2346          353           72          8488        17153     .00        361
14:05           68            0          127           542            6          191          2872          719     .00        112
14:06          123            0          177           579           60          171          2656         2552     .00        127
Itv End                 --  Interval end time (hour and minute)
Commit Ops              --  Commit operations performed.  Includes application
                              and system-provided referential integrity commits
Decommit Ops            --  Decommit operations performed. Includes
                              application and system-provided referential
                              integrity decommits
Physical Writes         --  Physical journal write operations to disk
Non SMAPP               --  Journal deposits not directly related to SMAPP
                              (System Managed Access Path Protection)
SMAPP User              --  SMAPP-induced journal entries deposited in
                              user-provided journals
SMAPP System            --  SMAPP-induced journal entries deposited in
                              system-provided (default) journals
Perm Size               --  Kilobytes  placed  within the permanent area; these
                              are  traditional  journal  entries which
                              can be retrieved and displayed
Transient Size          --  Kilobytes placed within the journal transient area;
                              these are hidden journal entries produced by the
                              system
Bundle Wait Pct         --  Percentage of time (relative to the interval elapsed
                              time) spent waiting for journal bundles to be
                              written to disk
Bundle Wait Count       --  Total number of times the tasks and jobs waited for
                              journal bundles to be written to disk
                                                      
Related information
Performance Tools PDF
Performance data files: QAPMJOBMI