From: Evren Y. <yur...@is...> - 2007-03-26 18:18:17
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John Pettitt wrote: > Evren Yurtesen wrote: >> I am using backuppc but it is extremely slow. I narrowed it down to disk >> bottleneck. (ad2 being the backup disk). Also checked the archives of >> the mailing list and it is mentioned that this is happening because of >> too many hard links. >> >> > [snip] > > The basic problem is backuppc is using the file system as a database - > specifically using the hard link capability to store multiple references > to an object and the link count to manage garbage collection. Many > (all?) filesystems seem to get slow when you get into the millios of > files with thousands of links range. Changing the way is works (say to > use a real database) looks like a very non trivial task. Adding disk > spindles will help (particularly if you have multiple backups going at > once) but in the end it's still not going to be blazingly fast. > > John > Well, so there are no plans to fix this problem? I found forum threads that in certain cases backups take over 24hours! Goodbye to daily incremental backups :) Do you know any alternatives to backuppc with web gui? which probably works faster? :P I wonder what is the mechanical stress this poses on the hard drive when it has to work 24/7 moving it's head like crazy. Thanks, Evren |