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copy-on-write mechanism & tech'l details


dulnuan

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Hi!

I am interested in the Open File Option of Retrospect. However, I can't find any detailed documentation on the technical details how Retrospect does it's "copy-on-write" backup mechanism. Does anyone know where I can get a technical documentation of Retrospect with regards to this backup method? or could anyone explain the technical details?

Thank you very much.

 

 

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Hi

 

The short answer is that the open file takes an "image" of sorts of the drive at the start of the backup and then tracks changes from there. The important thing to note is that Retrospect allows writes to happen to the disk during the backup as they would normally. It just keeps tabs on what has changed. There is no caching of changes going on that could cause a data loss due to a power outage.

 

Nate

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