Checkpoint names starting with "SYN"" are reserved for the Adabas nucleus and utilities, as described in:
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), ADADBS, or the nucleus. The table below identifies the source. 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 data set 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 the Adabas nucleus or utilities:
| Type | Name | Originator | Description |
|---|---|---|---|
| 01 | SYNC | ADANUC | Written by nucleus at start of nucleus session. |
| 01 | SYNF | User/Utility | User/utility session OPEN with files used in EXF (exclusive use) mode. |
| 01 | SYNS | ADANUC | Written by the starting of a second or subsequent Parallel Services or Cluster Services nucleus. |
| 01 | SYNX | EXU user | EXU user open. |
| 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 | SYN4 | ADASAV | SAVE file(s)-start of operation with nucleus active. |
| 05 | SYN5 | ADASAV | SAVE file(s)-end of operation with nucleus active. |
| 05 | SYNP | ADASAV | SAVE file(s)-start of operation |
| 06 | SYN1 | ADASAV | SAVE database-start of operation with nucleus active. |
| 06 | SYN2 | ADASAV | SAVE database-end of operation with nucleus active. |
| 06 | SYNP | ADASAV | SAVE database-start of operation |
| 07 | SYNP | ADASAV | RESTORE file(s)-end of operation |
| 08 | SYNP | ADASAV | RESTPLOG-end of operation |
| 09 | SYNV | ADASAV | SAVE file(s), VOLSER entry. Written at volume change on DD/SAVE and at SAVE-operation end. |
| 0A | SYNV | ADASAV | SAVE database, VOLSER entry. Written at volume switch on DD/SAVE and at SAVE-operation end. |
| 0B | SYN1 | ADASAV | SAVE DELTA-start of operation with nucleus active |
| 0B | SYN2 | ADASAV | SAVE DELTA-end of operation with nucleus active |
| 0B | SYNP | ADASAV | SAVE DELTA-end of operation |
| 0C | SYNP | ADASAV | RESTORE DELTA-end of operation |
| 0D | SYNP | ADASAV | MERGE-end of 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, timezone) |
| 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 | SYNP | ADARES | COPY function sucessfully completed |
| 27 | SYNV | ADARES | COPY sequential protection log |
| 28 | SYNP | ADARES | PLCOPY function successfully completed |
| 28 | SYNV | ADARES | PLCOPY dual or multiple protection log |
| 29 | SYNP | ADARES | ADARES CLCOPY function successfully completed. |
| 29 | SYNV | ADARES | CLCOPY dual or multiple command log |
| 2A | SYNP | ADARES | PLCOPY MERGE function successfully completed |
| 2A | SYNV | ADARES | PLCOPY MERGE dual or multiple protection log |
| 2B | SYNP | ADARES | CLOG MERGE function successfully completed |
| 2B | SYNV | ADARES | CLOG MERGE dual or multiple command log |
| 30 | SYNP | ADALOD | LOAD file |
| 31 | SYNP | ADALOD | Mass update |
| 35 | SYNX | ADAULD | Unload file |
| 3F | SYNP | ADAZAP | Successful VERIFY - REPLACE |
| 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 files |
| 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 |
| 5C | SYNS | SYSAOS | CHANGE default field format |
| 5D | SYNS | SYSAOS | Change file encoding |
| 5E | SYNS | ADADBS | ADADBS REPTOR function (refer to your Event Replicator for Adabas documentation) |
| 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 |
| 67 | SYNS | NUCLEUS | Session start with IGNDIB=YES |
| 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 |
| 6D | SYNS | ADANUC | NUC-ZAP was used |
| 6E | SYNS | ADADBS | ADADBS REPLICATION function (refer to your Event Replicator for Adabas documentation) |
| 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 |
| 7A | SYNS | ADADBS | Delete field from the FDT |
| 7B | SYNS | ADANUC | Logically delete a descriptor |
| 7C | SYNS | SYSAOS | Set file status: READONLY mode |
| 7D | SYNS | ADADBS | Add or delete CLOG |
| 7E | SYNS | ADADBS | Add or delete PLOG |
| 7F | SYNS | ADANUC | Change fields |
| 81 | SYNS | ADANUC | Modify FCB |
| 82 | SYNS | ADANUC | Online add or increase of an ASSO or DATA data set |
| 83 | SYNS | ADANUC | Autoincrease of an ASSO or DATA data set |
| 84 | SYNS | SYSAOS | AOSLOG information with user ID |