i'm using smb xfermethod, where do i set backuppc to set the checksum to 1?
Il 15/01/2016 16:26, Johan Ehnberg ha scritto:
On 2016-01-15 17:15, Gandalf Corvotempesta wrote:
2016-01-15 14:41 GMT+01:00 Nicola Scattolin <[email protected]>:
now i'm copying my old pools on the new drive but i got a lot of I/O
errors on old drive, there is a way to force backuppc to check if the
files are still ok? Because i know that if a file is alredy been copy by
backuppc it will not copy it again, but i don't want to lose files when
backuppc think a file is already in the pool, but it's corrupted.
I think BPC is smart enough to detect differences.
AFAIK , BPC check file checksum between backupped file and "fresh" file.
If different, file would be transfered.
When using checksum caching, the detection of corrupt files on the
backuppc server is only the set percentage probability. Corrupt files
may go unnoticed for quite a while. Setting checksum probability to 1
for a complete round of full backups will check every file to be extra sure.
The script I mentioned use goes through tar, so checksums are not
carried over. I had some issues (duplicated files that would cause an
error on each transfer) that backuppcc was unable to solve in the
corrupt pool even after the pool was moved to a good drive. They went
away when pre-seeding the new pool.
/johan
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