Ask MetaFilter questions tagged with incremental

Automatic encrypted offsite backup

Whoop — Sun, 30 Nov 2008 05:45:41 -0800

I've two debian machines, one is onsite and one is offsite on a residential connection. I need to backup incrementally to this offsite server over SSH (or something just as secure) on a regular basis, this should require no manual intervention. I would however like a regular email to inform me of the status. The offsite machine isn't secured from burglary etc and therefore the backups need to be fully encrypted. The onsite machine is secure and thus can store encryption keys if need be. I'm aware of duplicity however that's not stable and hasn't been updated in 5 years unfortuantly and thus isn't a wise idea to use in a commercial enviroment.

Any ideas would be extremely appreciated.
Many thanks,
Whoop

How do I measure daily adds/changes to a set of data, for backup purposes?

penciltopper — Tue, 10 Jun 2008 12:41:08 -0800

How do I measure daily adds/changes to a set of data, for backup purposes? So we just added another office; each has been doing its own backups and taking them offsite. We'd like to start backing up each office to the other office (over a VPN) as the offsite backup. I back you up, you back me up. They are in different regions, so that seems better than tapes floating around.

But I don't know how much we'll be able to deliver overnight over our pipes - the upload speed on both DSL lines is only 768kbps. I know it will take a long time to do the initial full backup; but how do I measure how big the daily incrementals will be?

I'm thinking of some way to measure the size of the data on a Monday, then track how many MB/GB is changed/added each day, track that over the course of a week or two, and use that to figure out if we can do this with our existing lines or if we need to invest in fatter pipes.

Anyone know of a way to do this without being a sysadmin/engineer etc? I can figure out most things, but I'm not going to be able to write my own scripts or whatever.
Suggestions?

I am looking for specific computer backup software

curiousleo — Sat, 16 Apr 2005 12:43:34 -0800

I have True Image 8 and Norton Ghost 9.... They both do fine job in cloning hard drives.. but I can not trust incremental backup and images... I tried about a half dozen time trying to restore files using both software.. absolutely NONE of them was successful... damaged images, files... etc.. I already lost serveral pictures and data... So.. I am looking for file to file backup type software that can incrementally copy files/folders to another networked computer's harddrive without compressing or imaging.... This way... I can always have two exact copies all the time... SecondCopy was one that was suggested... Is there more popular well known.. proven software like this?