IBM OS/390 User Manual

The following describes the methods and utilities used in OS/390 as compared to
VSE VSAM Backup/Restore procedures.

There are several tools that can be used in an OS/390 system to back up and
restore VSAM files. Considerations for which tool you may want to use can be
found in Chapter 4 of 

DFSMS/MVS Using Data Sets, SC26-4922. A brief

description of these tools follows:

•

DFSMSdfp

DFSMSdfp provides the IDCAMS commands, EXPORT/IMPORT, for backup
and restore of VSAM files. These commands are documented in the
DFSMS/MVS Access Methods Services for ICF SC26-4906.

•

DFSMShsm

DFSMShsm can be used to back up and restore VSAM files. For more
information see 

DFSMShsm Managing Your Own Data. In addition, backup of

data can be done automatically with DFSMShsm in a non-SMS or SMS
environment.

•

DFSMSdss

DFSMSdss can be used for VSAM backup/restore. See the manual
DFSMSdss Storage Administration Reference, SC26-4929, for command
syntax as well as hints and tips.

•

RVA/SnapShot V1R2

With RVA and SnapShot V1R2, you can SNAP a VSAM data set to disk and
offload it to tape at a later time.

You can use the VSE/VSAM Backup/Restore feature to back up VSE/VSAM files
to magnetic tape or disk devices, and restore the files again to VSE/VSAM data
sets. You can use the two IDCAMS commands BACKUP and RESTORE.

Use this feature to write and read data sets as follows:

•

Copy VSAM disk files to magnetic tape or disk (BACKUP).

•

Copy from magnetic tape or disk to VSAM disk files (RESTORE).

The operations listed below can be done for the following VSE/VSAM objects:

•

KSDS files

•

ESDS files

•

RRDS files

•

VRDS files

•

Alternate indexes

•

SAM ESDS files in CI format

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 Copyright IBM Corp. 1998