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Emergency Recovery of the DSN Catalog
4-8 BIM-EPIC Installation and System Guide
Emergency Recovery of the DSN Catalog
Use the procedure below to recreate the DSN Catalog after it has been accidentally destroyed.
The RECOVER1 (or RECOVER2) SAMPJOB procedure contains all of the steps necessary
to recover the DSN Catalog. The RECOVERn SAMPJOB procedures are supplied on the
BIM-EPIC distribution tape.
Step Action
1 Using TSIDOFF, deactivate BIM-EPIC in all machines which share the DSN
Catalog to be recovered.
2 Deactivate all Recorder systems.
3
Reactivate BIM-EPIC in the VSE machine being used to perform the recovery.
Use the EPICON procedure normally used to bring up the machine. Ensure that
no other processing takes place except the recovery.
4 Restore the DSN Catalog in the reactivated machine using the RESTORE function
of TSIDUTL.
5 Back up the Recorder File(s) using the MAINT function of TSIDRFS. Use tapes
that are uncontrolled (not listed in the DSN Catalog).
6
Perform forward recovery of the BIM-EPIC DSN Catalog using the specified
datasets. To recover the DSN Catalog, set the UPSI switches to indicate the which
Recorder Files to use as input.
Do not execute TSIDBLD from the VSE operator console.
7
Close the backup dataset with the CLOSE function of Online Manager or
TSIDMNT.
8
Back up the recovered DSN Catalog using the BACKUP function of TSIDUTL.
9 Reactivate BIM-EPIC in all machines which share the DSN Catalog.
10
Rerun TSIDVLT if it has been run since the last DSN Catalog backup was
performed. TSIDVLT updates are not reflected after an emergency recovery.
The USPI switches are set as follows:
Switch Description
UPSI 1xx BIM-EPIC Recorder File (SYS005 = VSEBKUP)
UPSI x1x CA-EPIC/CMS Recorder File (SYS006 = CMSBKUP)
If the DSN Catalog is used by a single VSE system, the following is used:
// UPSI 100 (VSE ONLY)
Introduction
Procedure
UPSI Settings
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