On 4/24/2014 1:24 AM, Guilherme Cunha wrote:
Hi !
How do I run only incremental backup?
You don't. Full backups are necessary at some reasonable interval for a
couple of reasons.
1) Incrementals are based on the last full backup. So your incremental
backups will keep getting bigger and bigger until you run another full
backup. And, even with rsync, the network usage will also continue to grow.
2) Incrementals decide what to back up based on timestamps. This can
lead to files being missed in some circumstances. For example, files
that were moved to a different location without changing timestamps, or
files that were moved/restored from elsewhere while maintaining an older
timestamp. An occasional full backup will make sure these files get
backed up.
3) If you are using rsync, then a full backup will not take any more
network bandwidth than an incremental. It will take longer because of
the need to actually compare each file, but only the changes will be
transferred across the network.
4) Due to the pooling features of BackupPC, a full backup does not take
up any more hard drive space on the server than an incremental.
What are you trying to accomplish by only running incrementals?
--
Bowie
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