If a library contains an object, you can use the Display Object
Description (DSPOBJD) command to find out when the server saved the object.
If the QSYS library contains an object, you can use the DSPOBJD command to
display the appropriate data area that is shown in Data areas that contain
save history.
You can also use the DSPOBJD command to obtain the save
history for document library objects (DLO) in libraries. Use the Display Document
Library Object Name (DSPDLONAM) command to find the system object name and
the ASP ID of the DLO. On the DSPOBJD command, specify the system object name
on the OBJ parameter. In the library name field, specify
QDOCxxxx where
xxxx is
the ASP ID. For example, for auxiliary storage pool (ASP) 2 the library name
would be
QDOC0002.
Note: For ASP 1, the system ASP, the library
name is QDOC, not QDOC0001.
For objects that
you store in directories, you can use the output from the SAV command to maintain
save history information. To use the output, you must elect to keep the save
history information when you issue the SAV command. To keep the save history
information, specify either *PRINT or a stream file or user space path name
on the OUTPUT parameter of the SAV command.
Note: The output from the SAV
command does not store the last saved data for objects in directories. See
Save changed objects in directories for instructions to save only changed
objects.
The following commands do not update the save history
information for the individual objects that the server saves:
- Save System (SAVSYS)
- Save Security (SAVSECDTA)
- Save Configuration (SAVCFG)
- Save Save File Data (SAVSAVFDTA)
- Save System Information (SAVSYSINF)
For some save operations, the server updates history information in
a data area. In some cases, the server updates the data area instead of updating
the individual objects. In other cases, the server updates the data area in
addition to the individual objects.
Beginning with V5R1, when you install
the operating system, the server will update the data areas. However, the
data areas will appear as if you used RSTOBJ to restore them. The server does
not support the QSAVDLOALL data area.
The following table shows these
commands and the associated data areas:
Table 1. Data areas that contain save history| Command |
Associated Data Area |
Individual Objects Updated? |
|---|
| SAVCFG |
QSAVCFG |
No |
| SAVLIB *ALLUSR |
QSAVALLUSR |
Yes1 |
| SAVLIB *IBM |
QSAVIBM |
Yes1 |
| SAVLIB *NONSYS |
QSAVLIBALL |
Yes1 |
| SAVSECDTA |
QSAVUSRPRF |
No |
| SAVSTG |
QSAVSTG |
No |
| SAVSYS |
QSAVSYS, QSAVUSRPRF, QSAVCFG |
No |
| SAVSYSINF |
QSYSINF |
No |
- 1
- If you specify UPDHST(*NO), the server does not update the Date last
saved field in either the object or the data area.
|
The server uses the save history information when you save objects
that have changed since the last save operation.