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BACKUP Performance: Incremental and Delta backups should not have to read all tablespace pages.(RIMS)
Backup currently reads ALL pages in the tablespace to examine the pageLSN in order to determine if a page should be included in the image. This is poor for performance, customer want this addressed using a 21th century approach.
When making an incremental backup, DB2 does a complete scan per tablespace for changes. Even when only one row has changed in the tablespace. This makes incremental backups quite lengthy. Oracle on the other hand has the "block change tracking" fe...
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