Progress
Version 9
Product Update Bulletin


AIMAGE EXTRACT Qualifier

The AIMAGE EXTRACT qualifier provides you the ability to extract the active AI blocks from a specified, full after-image extent, and writes them to an output file. Extracting AI blocks from an AI extent compacts AI data into the smallest possible file. Extracting AI blocks can significantly shrink the size of an AI file, particularly if you have large fixed-size AI extents which are not filled to capacity. Extracting AI blocks is beneficial in cases where you are using after-imaging to replicate data, perhaps at a disaster recovery site, and you need to minimize file transfer size. The output file of extracted blocks is equivalent to the source AI extent. Use the file of extracted blocks with the RFUTIL utilities to roll forward a target database.

Operating System
Syntax
UNIX
Windows
rfutil db-name -C aimage extract -a ai-extent 
       -o output-file 

db-name

Specifies the database you are using.

-a ai-extent

Identifies the AI file containing the blocks to be extracted. The extent must be marked as full or locked.

-o output-file

Specifies the file to hold the extracted blocks.

NOTE: Extracting blocks from an AI extent is only beneficial for fixed length extents. There will be minimal savings of disk space when extracting blocks from a variable length extent.


Copyright © 2004 Progress Software Corporation
www.progress.com
Voice: (781) 280-4000
Fax: (781) 280-4095