This document is organized as follows:
To review the checkpoints for an Adabas
database:
Select an Adabas database in tree-view and expand it.
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'. |
| Date | The date and time the checkpoint was taken. |
| PLOG No. | The PLOG that the nucleus is currently writing. |
| Extended Information |
For mainframe databases, the additional information is available:
| Column | Explanation |
|---|---|
| Type | The checkpoint number. For checkpoint names starting with 'SYN', the checkpoint numbers are provided in the section Checkpoint Numbers for 'SYN' Names. |
| 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. |
For more information about checkpoints, see the section ADAREP in the Adabas Utilities documentation.
To delete the checkpoints:
Right-click Checkpoints in tree-view.
Select on the drop-down menu.
The Delete Checkpoints panel appears in detail-view.
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 "n" 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 to confirm.
The Delete Checkpoints Success panel is displayed.
Click to return to the Checkpoints display panel.
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 (mainframe only) | Online ADASAV SAVE file (privileged user) |
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 (mainframe only) | 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 (mainframe only) | 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 (mainframe only) | A checkpoint made at the beginning of online ADASAV execution (SAVE database function). |
| SYN2 (mainframe only) | A checkpoint made at the end of online ADASAV execution (SAVE database function). |
| SYN4 (mainframe only) | A checkpoint made at the beginning of online ADASAV execution (SAVE files operation). |
| SYN5 (mainframe only) | A checkpoint made at the end of online ADASAV execution (SAVE files operation). |
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 |
