How reman backup the blocks being written from memory to disk
Hi All,
I am thinking about one case when backuping the datafiles with RMAN.
That is the rman is about to backup block A when this block is being written by DBWR from memory to disk.
Let's assume the writing is just partially done. What will RMAN do in this case?
1. Wait until the writing is done and back it up
2. Backup what RMAN sees at that time
I am just wondering whether the choice 2 will leave the block inconsistent and so be taken as corrupt when restored.
Best regards,
Leon
I am thinking about one case when backuping the datafiles with RMAN.
That is the rman is about to backup block A when this block is being written by DBWR from memory to disk.
Let's assume the writing is just partially done. What will RMAN do in this case?
1. Wait until the writing is done and back it up
2. Backup what RMAN sees at that time
I am just wondering whether the choice 2 will leave the block inconsistent and so be taken as corrupt when restored.
Best regards,
Leon
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