Here are the steps to STOP HADR DB2 database:

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1. Deactivate HADR on standby database:

db2 deactivate db MAXDB76

DB20000I  The DEACTIVATE DATABASE command completed successfully.

2. Stop HADR on standby database:

db2 STOP HADR ON DB MAXDB76

DB20000I  The STOP HADR ON DATABASE command completed successfully.

Similar scripts you would need to run on primary database as well:

1. Deactivate HADR on Primary  database:

db2 deactivate db MAXDB76

DB20000I  The DEACTIVATE DATABASE command completed successfully

2. Stop HADR on Primary database:

db2 stop HADR on database MAXDB76 as primary

DB20000I  The STOP HADR ON DATABASE command completed successfully.

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1. Start HADR on the standby database:

      

 db2 START HADR ON DB MAXDB76 AS STANDBY

 DB20000I  The START HADR ON DATABASE command completed successfully.

Similar scripts you would need to run on primary database as well:

1. Activate HADR on Primary database:

db2 activate db MAXDB76

DB20000I  The ACTIVATE DATABASE command completed successfully.

2. Start HADR on Primary database:

db2 start HADR on database MAXDB76 as primary

DB20000I  The START HADR ON DATABASE command completed successfully.