Mike Bydalek <[email protected]> wrote on 02/19/2010 11:28:25 AM:
> Thanks for all the input. I'm starting to fully understand how > BackupPC scheduling is working now. My apologies for not stating that > I was/am using rsync as it is the only choice that makes sense =) In which case, after your first (potentially very long) full backup, the rest of the system should work very well. Caveats: how big are the files that are changing (given an equal number of files changing per day, small files are easier than large files), and how much total data changes on a daily basis. If you're making gigabytes of changes per day, nothing will help you: you'll be limited by the bandwidth. If you're making small changes but to very large files, you will have to hash the entire file of each of these files, and disk performance on *both* ends will be the limiting factor. Also, your incrementals will likely be almost as long as your fulls. But if you're making a relatively small number of changes to a relatively small number of relatively small files (such as your typical office file server), BackupPC will work outstandingly. This is not to seem that BackupPC is somehow limited. It's not: I run it on all *kinds* of servers. But you have to be aware of the limitations. *Lots* of files (such as a large mail server that stores each e-mail in its own file), very large files that change every day (such as mail servers with a monolithic datastore (yes, Exchange, I'm looking at *you*)), or simply lots of new data generated daily (things like HPC clusters that create *gigabytes* of new data daily) will require special attention, design and tuning. Tim Massey ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
