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index based restore of a table space from backup image file

Want to restore the contents of a tablespace from a backup.

  • Avatar32.5fb70cce7410889e661286fd7f1897de Guest
  • Sep 15 2020
  • Future consideration
Who would benefit from this IDEA? DBA when recovering from either a user mistake or system failure
How should it work?

Today to restore a tablespace the entire image file must be read.

for us the image files are stored on Random access devices it will good if the entire backup doesn't have to be read. for use this is very large.

During backup each image file has N tablespaces that are concurrently written (N =Degree of parallelism of backup). Therefore it is possible to record the start and end location of each tablespace within an image file. Therefore it should be possible to restore a tablespace without having to read the entire image file.

Thus reducing the read requirements and duration of restore.

Idea Priority High
Priority Justification Our Database are very large. it is essential we bound the recovery time.
Customer Name Visa
  • Attach files

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