Symptoms:
DB apply that won’t come up since a hard crash yesterday.

Here are the actions taken:

• After using WRKDG with Option 8 and F8, it was observed that Apply Session <x> was not active.
• An attempt was made to start the Apply Session using the command STRDG DGDFN(<dgname>) PRC(*DBAPY) APYSSN(<x>), but the session did not remain active.
• The job log for sdn_DBAPY<x> job was checked, which indicated the following error: MCH3601 Pointer not set for location referenced lsGetBeginPointer.
• This error is likely the result of corruption caused by a hard crash.

The resolution involves the following steps:

1. Use the WRKDG command with Option 8, followed by F8.
2. Take note of the Last Processed sequence number for Apply Session <x>.
3. Execute the STRDG command with the following parameters: DGDFN(<dgdfn>) PRC(*DBAPY) CLRPND(*YES) DBSEQNBR(XXXXXXXXX) APYSSN(<x>). Replace xxxxxxxxx with the sequence number obtained in the previous step incremented by 1.