Release 10.1C: OpenEdge Replication:
User Guide
DSRUTIL applyextent qualifier
Allows you to apply AI extents generated by the source directly to the target database. This is useful when there is a source failure and there are AI blocks in transit between the server and agents.
Syntax
db-name
The name of the database to perform the action on. The name of the database must be the first argument and must be a valid name.
extent-name
This extent is provided by the
recovery
qualifier.The following requirements exist for using this feature:
- The agent must be in pre-transition state.
- The
transition
property must be set tomanual
.- The source must save AI extents to remote storage that is accessible to the target’s agent.
You can determine which extent to apply by using the following command:
The information shown here must be used to correctly apply source after-image extents to the target database in the event of a source database failure when the following command is executed:
In order to determine the after-image extent name using the
After-Image File Number
supplied, you must do one of the following:
- If the source database is available, use the following command to generate a list of after-image extents for the source database:
Executing this command produces the following output:
Match the
Seqno
from this output to theAfter Image File Number
provided by the DSRUTIL recovery output. Apply all BUSY and FULL extents beginning with this extent.- If the source database is unavailable but its after-image extents are available on a SAN or NAS device that the target machine has access to, you must determine the first after-image extent to apply.
Change to the directory where the source after-image extents are stored, and then execute the following command:
The command produces the following output:
Match the
aimage file number
n
from this output to theAfter-Image File Number
provided by the DSRUTIL recovery output. Apply all BUSY and FULL extents beginning with this extent.
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