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Hi,
This may also be
applicable to MySQL etc..
I have an MS-SQL
database that dumps out a backup that's around 700MB in size. BackupPC brought
this over to its server via ADSL/VPN/Rsyncd (422mins!) and when I did another
data dump about 4 hours later, around 16Mb of changes to the file were
transferred very quickly. However, every single backup since then has gone back
to 422 minutes. I could imagine that the database and dump will change over
time, but it seems strange that the entire file needs copying every time - as if
its structure is always 100% different from the previous.
I wondered if I was
missing anything obvious (being a BackupPC noob) like file time stamping causing
a complete file transfer every day, or are database dumps likely to be
completely different every time?
I will keep some
copies of the dumps and do some comparisons but in the meantime any tips,
thoughts etc.?
Thanks
Nigel
Kendrick
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