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Replaying idb transaction logs – HP B6960-90078 User Manual

Page 460

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Managing the Data Protector Internal Database

Recovering the IDB

Chapter 9

430

Replaying IDB Transaction Logs

In a successful

omnidbrestore -autorecover

, transaction logs are

already replayed. Use this procedure only if you need to retry replaying
of transaction logs or you postponed it before.

Replaying transaction logs after the IDB restore is completed recovers
the IDB to the same state as before the crash, except that binary files are
not updated and changes to binary files are lost.

The following are not available for the backups that were running from
the last IDB backup until the IDB corruption:

• Session messages.

• Browsing of file versions (restores of complete objects are possible).

Perform the import catalog on the media used by the backups, to
recover the changes.

• SIBF updates. Export and import the media used by the backups to

recover the changes.

Limitation

Replay of the transaction logs can only be done if archiving of the
transaction logs is enabled. (The archiving parameter in the

velocis.ini

file must be set to 1.)

Prerequisites

• Transaction logs must be available. For more information on

transaction logs, refer to “Preparing for IDB Recovery” on page 390.
You can verify that the transaction logs are available by listing the
directory:

/db40/logfiles/syslog

If transaction logs are not available, refer to “Updating the IDB by
Importing Media” on page 433.

• If the IDB is installed on MC/ServiceGuard, run the

cmhaltpkg

command on the active node before running the

omnidbrestore

command in the procedure below, to stop the Data

Protector package. Before running the

omnidbcheck

command in the

procedure below, run the

cmrunpkg

command on the

active node to start the Data Protector package, where

is the name of the Data Protector cluster package.

• If the IDB is installed on Microsoft Cluster Server, take the

OBVS_VELOCIS

cluster group offline using the Cluster Administrator

utility on the active node before running the omnidbrestore command
in the procedure below. Before running the omnidbcheck command in