NetBase for MPE Reference Guide

Disaster Recovery Procedures for NetBase Shadowing Environments
12-5
When the old master system is available, it must be brought up to think that it is a shadow system.
Follow the steps below for restarting the failed system as a “shadow” system.
On the OLD master system:
1. Do not start the NetBase background job at system startup.
2. Check the NBM.IPC file and make sure it is empty. If it is not empty, it must be purged and
rebuilt:
PURGE NBM.IPC.NETBASE
BUILD NBM.IPC.NETBASE;REC=8187;MSG;DISC=31000,32
3. Delete any transactions in the export queue files:
PURGE EQ######.QUEUE
4. Change to a directory that says this is the shadow system:
RUN NBCTRL.PUB.NETBASE;INFO=‘CHGDIR newdir”
5. Set the SHADOW - Post on Startup........... flag to N.
RUN NBCTRL.PUB.NETBASE
∗> CONFIG
C> M SHADOW____ SHADOW - Post On Startup...... N
6. Start the NetBase background job.:
RUN NBCTRL.PUB.NETBASE;INFO=“START NETBASE”
This will allow the transactions to be sent over but not posted.
7. Start the restore that was made at the time of the failover.
8. When the restore is complete, start the posting process:
RUN NBCTRL.PUB.NETBASE;INFO=“START POST”