- Define and load VSAM spheres. Be sure that the VSAM sphere definitions
include a storage class that contains volumes available for full volume dumps
to tape and individual data set restores from the dump.
- Create a DFSMShsm full
volume dump on tape for the volume that the VSAM spheres reside on. A full
volume dump of an SMS-managed volume can either be started manually with the
BACKVOL command or automatically by setting the appropriate DFSMShsm parameters.
Be sure to record the date and time that the full volume dump was taken.
You can obatin this information by issuing the following DFSMShsm command:
HLIST VOLUME(volume_serial) BCDS SYSOUT(H)
- Update the VSAM spheres with CICS® applications, batch applications,
or both.
- Perform LOGOFLOGS
SCAN.
- Create log stream copies of the MVS™ log streams that contain the log records.
- Perform RCDS
EXPORT.
- Create backups of the DFSMShsm control data sets and journal periodically.
To manually create CDS backups, first issue the DFSMShsm QUERY CDSVERSIONBACKUP command.
This displays the names of the sequential data sets used to backup the DFSMShsm CDS
and journal. Record these names. To backup the DFSMShsm CDS and journal to DASD, you
must pre-allocate the listed data sets. To backup the DFSMShsm CDS and journal to TAPE, these
data sets are dynamically created.
Next, issue the DFSMShsm BACKVOL CDS command to backup
the DFSMShsm CDS.
- If you create copies of the DFSMShsm journal more often than you
backup the DFSMShsm CDS,
use the copied journal to update the CDS with the latest activity on the journal
at the remote site.
To backup the DFSMShsm journal, first stop DFSMShsm.
Then, run the ARCBJRNL utility.
- Send the following to the remote site:
- Tape that contains the DFSMShsm full volume dump
- Log stream copies
- Sequential data set that contains the exported RCDS
- DFSMShsm CDS
sequential data set backups
- DFSMShsm journal
backup
At the remote site: - Stop DFSMShsm if
it is active.
- Mount the tapes with the DFSMShsm full volume dump, log stream copies, and
exported RCDS.
- Perform RCDS
IMPORT.
- Catalog the log stream copies.
- Sort the DFSMShsm journal
backup by KEY using the EQUALS parameter.
- If DFSMSdss was
the data mover used to backup the DFSMShsm CDS:
- Restore the DFSMShsm CDS
from their backups.
- Export the restored data sets using the IDCAMS program.
- Use the ARCIMPRT utility to create the CDS at the remote site using the
exported CDS and sorted journal as input.
- Start DFSMShsm.
- Call the CICS VR
panel interface to create and submit a recovery job that restores and forward
recover the VSAM spheres. Select “Full volume dump” as the backup type, enter
the date the full volume dump was created as the backup time and forward recovery
start time, and specify QSAM copy as the log stream type.
See z/OS® DFSMShsm Storage
Administration Guide for more information about DFSMShsm and the enhanced CDS recovery
function.