Recovering a Lost Mirrored Chunk Online (SAP Library - SAP Database Guide: Informix (BC-DB-INF-DBA))

Recovering a Lost Mirrored Chunk Online

Use

This procedure is the final step in the recovery of a lost mirrored chunk with an Informix database.

Prerequisites

You have completed Creating a New Link for a Lost Mirrored Chunk.

You have fixed the cause of the error (for example, you have repaired the disk hardware).

Procedure

Use the onspaces tool to recover the chunk online. For more information about onspaces , see the Informix documentation. Enter a command like the following:

$ onspaces -s logdbs -p /.../data3 -o 17112 -0

You get a message in the message log indicating that the chunk has been restored and is available online. For example:

15:47:28 Chunk Number 6 - '/.../data3' — Recovery

Begins(-2131622640)

15:47:33 Chunk Number 6 - '/.../data3' — Online

15:47:35 Checkpoint Completed: duration was 2 seconds

15:47:36 Chunk Number 6 - '/.../data3' — Recovery

Complete(-2131622640)

Result

The lost mirror chunk is back online and its data can be accessed by R/3 applications.

See also:

Informix documentation