When the database is updated during an updatable backup hold, the additional amount of system log information shown by the following formula is output. For HiRDB/Single Server, add the amount of system log information found here to the amount of log information output by Single Server. For HiRDB/Parallel Server, add the corresponding amounts of log information for the back-end servers and dictionary servers that manage the RDAREAs that are being updated.
However, when HiRDB terminates abnormally or is forcibly terminated during a backup hold, the backup hold is not inherited when HiRDB restarts (unless it is a reference-possible backup hold). For this reason, the system log information calculated here is not output.
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a: Number of RDAREAs updated during the updatable backup hold
Si: Page size of RDAREAs (bytes)
Ti: Number of update pages of RDAREA updated during the updatable backup hold
Use the following procedure to find the number of RDAREA update pages.