StorageTek 6 manual Reasons for Running the Directory Rebuild Utility, Prerequisites, Syntax

Directory Rebuild

Directory Rebuild Utility

The Directory Rebuild utility provides a means to rebuild the database directory for all defined CDS copies.

Prerequisites

The stand-alone Directory Rebuild utility:

•runs under the control of the SLUADMIN utilities program

•may be run while the CDS-related HSCs are STOPped

•must be run using all CDS copies as input.

Reasons for Running the Directory Rebuild Utility

The major purpose of the Directory Rebuild utility is to repair a corrupted CDS database directory when the HSC is not active. Normally, the HSC corrects errors automatically.

How the Directory Rebuild Utility Functions

The utility performs the following processing to rebuild the database directory:

•opens the control data sets specified by the SLSCNTL, SLSCNTL2, and SLSSTBY DD statements

•locates invalid pointers, directory entries, and recovery data

•rewrites corrected blocks to all CDS copies.

Syntax

DIRBLD

Utility Name

DIRBLD

specifies that directory rebuild processing is to be performed and invokes the SLUDRDIR module.

Parameters

None.

JCL Requirements

The following definitions apply to the DIRBLD utility JCL:

SLSPRINT

output messages from the utility program.

236VM/HSC 6.0 System Programmer’s Guide

1st ed., 6/30/04 - 312579601