Re: Continue backup

Denis Corbin <[email protected]> Thu, 13 Jul 2023 16:44:04 +0200
Newsgroups gmane.comp.sysutils.backup.dar.support
Message-ID <[email protected]>

On 13/07/2023 16:05, Siddharth Manthan wrote:
> Assuming we are making 20GB slices. What happens when a file of, say 
> 100GB is being backed up and it is interrupted at 50GB. We have 2 valid 
> slice and 1 invalid. I delete the invalid slice. Will the data in first 
> two slices be used or will it be discarded ?

such 50GB file is not recorded as part of the backup, no slice is 
invalid but you get wasted data. This can be prune either by a merging 
operation as explained in my previous email.

If you delete the last slice(s) of a backup, you will lose the catalogue 
at end of the backup and content of those deleted slices. But you will 
be able to repair (-y option) to recreate this catalogue from what 
remains on the first slices (repairing does not touch the original 
backup but creates a new one beside the original and corrupted one). 
Without repairing, you are stuck only using the --sequential-read 
mode,which is slower than normal reading mode (direct access mode)

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