Re: [Duplicity-talk] par2 - what and when to use?

[Mark Grandi]

Its parity information so in case a couple bits get flipped in the backup files, the parity information can be used to restore the data

 

See https://en.wikipedia.org/wiki/Parchive

 

It should work on the ‘final’ output of the backup, so I feel like it should work if the backup isn’t encrypted and its just a .tar.gz file, but I have not tried it

 

~Mark

 

From: MRob via Duplicity-talk
Sent: Sunday, January 26, 2020 2:46 PM
To: address@hidden
Cc: MRob
Subject: [Duplicity-talk] par2 - what and when to use?

 

Is par2 like a tar format with extra bits added to facilitate recovering

corrupt files? Is protection against files corrupt inside the archive or

corrupt archive file itself? Is there a easy to understands overview?

 

I see to use it like "par2+gs://bucket" but I want to do some local

backups that will use --no-encryption option and transport over sftp. Is

still a good idea to do like "par2+sftp://address@hidden/path"?

 

If par2 is very powerful ability to protect against corruption, why

isn't it promoted more regular on duplicity website, manpage, mailing

list? Shouldn't it be in more of the examples?

 

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