Version 7.6.3
 —  Adabas Manager Documentation  —

Checkpoints

This document is organized as follows:

Start of instruction setTo review the checkpoints for an Adabas database:

  1. Select an Adabas database in tree-view and expand it.

  2. Select Checkpoints in tree-view.

    The checkpoints for the database are displayed in detail-view.

The table columns are described as follows:

Column Explanation
Name The checkpoint name; that is, the checkpoint identifier. In the case of a user non-synchronized checkpoint, the name is supplied by the user program. Checkpoint names starting with 'SYN' are reserved for the Adabas nucleus and utilities and are described in the section Checkpoint Names Starting with 'SYN'.
Type The checkpoint number. For checkpoint names starting with 'SYN', the checkpoint numbers are provided in the section Checkpoint Numbers for 'SYN' Names.
Date The date and time the checkpoint was taken.
PLOG No. The PLOG that the nucleus is currently writing.
BlockNo. The block number of the data protection log in which the checkpoint was written.
VOLSER Either the number of the sequential protection (DD/SIBA) log or 'DUAL' if dual logging is being used.
User The type of Adabas user that set the checkpoint. These types are described in the section Types of Adabas Users.
JobName The name of the job that created the checkpoint.
Extended Information  

For more information about checkpoints, see the section ADAREP in the Adabas Utilities documentation.

Start of instruction setTo delete the checkpoints:

  1. Right-click on Checkpoints in tree-view.

  2. Select Delete Checkpoints on the drop-down menu.

    The Delete Checkpoints panel appears in detail-view.

  3. The available options are:

    Delete Checkpoints from (and older): Remove all checkpoint file entries up to the date you specify in the field.
    Delete Checkpoints older than XX days: Remove all checkpoint file entries older than the number of days you specify in the field.

    Enter a date or a value for the number of days and click Delete to confirm.

    The Delete Checkpoints Success panel is displayed.

  4. Click OK to return to the Checkpoints display panel.


Types of Adabas Users

The following user types may appear in the list of checkpoints:

ACC Access-only user
ET ET logic user
EXF Exclusive file control user or utility (privileged user)
EXU Exclusive file update user or utility
UTI Utility update control utility (privileged user)
UTS Online ADASAV SAVE file (privileged user)

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Checkpoint Names Starting with 'SYN'

Checkpoint names starting with 'SYN' are reserved for the Adabas nucleus and utilities:

SYNC A synchronized checkpoint made during nucleus initialization, including the status of the ADARUN IGNDIB and FORCE parameters.
SYNF A checkpoint taken by a user program or utility that requires exclusive (EXF) control of one or more files.
SYNP A checkpoint from a utility that requires privileged control. Such a utility can perform updating without using the Adabas nucleus.
SYNS A checkpoint from Adabas Online System (SYSAOS) or ADADBS with three exceptions from the nucleus. The function identified by this checkpoint is implemented without user intervention during regeneration. Exceptions include a second SYNS 5B recorded at the end of a nucleus session; SYNS 60 recorded at an interval specified by the ADARUN INTNAS parameter; and SYNS 61 recorded when more space is allocated for a file.
SYNV Indicates that a volume ID changed during sequential write to a dataset that is being closed.
SYNX A checkpoint from a utility requiring exclusive control (EXU) of one or more files.
SYN1 A checkpoint made at the beginning of online ADASAV execution (SAVE database function).
SYN2 A checkpoint made at the end of online ADASAV execution (SAVE database function).
SYN4 A checkpoint made at the beginning of online ADASAV execution (SAVE files operation).
SYN5 A checkpoint made at the end of online ADASAV execution (SAVE files operation).

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Checkpoint Numbers for 'SYN' Names

The following table describes the checkpoints written by an Adabas nucleus or utility:

Type Name Origin Description
01 SYNC ADANUC Written by a nucleus at the start of a nucleus session
01 SYNF user/utility User/utility session OPEN with files used in EXF mode
01 SYNX EXU user Open checkpoint for an EXU user
02 SYNV ADANUC VOLSER entry; written at volume switch on DD/SIBA and at the end of the session if sequential logging is used
03 SYNF user/utility Close checkpoint for an EXF user
03 SYNX EXU Close checkpoint for an EXU user
05 SYNP ADASAV Start of SAVE file(s) operation
06 SYNP ADASAV Start of SAVE database operation
07 SYNP ADASAV End of RESTORE file(s) operation
08 SYNP ADASAV End of RESTPLOG operation
09 SYNV ADASAV SAVE file(s), VOLSER entry; written at volume switch on DD/SAVE or at the end of a SAVE operation
0A SYNV ADASAV SAVE database, VOLSER entry; written at volume switch on DD/SAVE and at the end of a SAVE operation
0B SYNP ADASAV End of SAVE DELTA operation
0C SYNP ADASAV End of RESTORE operation
0D SYNP ADASAV End of MERGE operation
0E SYNV ADASAV SAVE DELTA, VOLSER entry
0F SYNV ADASAV MERGE, VOLSER entry
10 SYNP ADAINV COUPLE files
11 SYNP ADAINV INVERT field(s)
15 SYNP ADAORD REORDER Associator database
16 SYNP ADAORD REORDER Data Storage database
17 SYNP ADAORD REORDER database
18 SYNP ADAORD REORDER Associator file
19 SYNP ADAORD REORDER Data Storage file
1A SYNP ADAORD REORDER file
1B SYNP ADAORD STORE
1C SYNP ADAORD RESTRUCTURE
1D SYNP ADADEF DEFINE NEWWORK
1E SYNP ADADEF MODIFY default character encodings
22 SYNX ADARES REGENERATE file
23 SYNX ADARES BACKOUT file
24 SYNX ADARES REGENERATE all; CPEXLIST lists excluded files
25 SYNX ADARES BACKOUT all; CPEXLIST lists excluded files
26 SYNP ADARES REPAIR Data Storage
27 SYNV ADARES COPY sequential protection log
28 SYNP ADARES PLCOPY function successfully completed
28 SYNV ADARES PLCOPY dual protection log
29 SYNV ADARES CLCOPY dual command log
2A SYNP ADARES PLCOPY MERGE function successfully completed
2A SYNV ADARES PLCOPY MERGE dual protection log
2B SYNP ADARES CLOG MERGE function successfully completed
2B SYNV ADARES CLOG MERGE dual command log
30 SYNP ADALOD LOAD file
31 SYNP ADALOD Mass update
35 SYNX ADAULD Unload file
3F SYNP ADAZAP VERIFY - REPLACE successfully completed
40 SYNS SYSAOS Add extent
41 SYNS SYSAOS CHANGE default field length
42 SYNS SYSAOS DECREASE database size
44 SYNS SYSAOS Delete file
45 SYNS SYSAOS INCREASE database size
47 SYNS SYSAOS RECOVER space
48 SYNS SYSAOS Refresh file
49 SYNS SYSAOS Remove component file from expanded file chain
4A SYNS SYSAOS Release descriptor
4B SYNS SYSAOS RENAME file
4C SYNS SYSAOS RENUMBER file
4D SYNS SYSAOS RESET DIB
4E SYNS SYSAOS Reuse ISN
4F SYNS SYSAOS Reuse Data Storage
50 SYNS SYSAOS UNCOUPLE file
51 SYNS SYSAOS ALLOCATE file extent
52 SYNS SYSAOS DEALLOCATE file extent
53 SYNS SYSAOS Delete checkpoint
54 SYNS SYSAOS Set user priority
55 SYNS SYSAOS Modify FCB
57 SYNS SYSAOS DEFINE file
58 SYNS SYSAOS Write FDT
59 SYNS SYSAOS DEFINE new field
5B SYNS ADADBS Write refreshed statistics (some or all per user request)
5B SYNS ADANUC Write (all) statistics at end of nucleus session
5B SYNS ADARES Write refreshed statistics (command usage, file usage, DRES, DSTAT, thread usage)
5C SYNS SYSAOS Change default field format
5D SYNS SYSAOS Change file encoding
60 SYNS ADANUC Nucleus statistic checkpoint
61 SYNS ADANUC Allocate file space
64 SYNS ADASCR Protect files
65 SYNS ADASCR Protect fields
66 SYNS SYSAOS Link component file into expanded file chain
68 SYNS SYSAOS Set USERISN on/off.
69 SYNS SYSAOS Set MIXDSDEV on/off
6A SYNS SYSAOS Install Delta Save DLOG area
6B SYNS SYSAOS Change Delta Save DLOG area
6C SYNS SYSAOS Remove Delta save DLOG area
6F SYNS SYSAOS Online process initiated
70 SYNS SYSAOS Online invert process
71 SYNS SYSAOS Online reorder process
73 SYNC ADANUC Nucleus (nuclei) successfully quiesced
74 SYNC ADANUC Nucleus (nuclei) have resumed normal processing
75 SYNS ADANUC Delete heuri-user-entry after Response 72 was detected during nucleus startup
76 SYNS ADANUC Delete heuri-user-entry after Response 72 was detected during nucleus session
77 SYNS ADADBS Enable spanned record support
78 SYNS ADADBS Enable or disable extended MU or PE fields

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