Author: Wayne Walker <wwalker AT solid-constructs DOT com>
Date: Fri, 1 Oct 2010 09:39:49 -0500
BackupPC uses rsync as a transport. Does it use any of rsync's smarts to prevent downloading unchanged files? If I run 2 full backups back to back, does it pull the entire 90 GB both times? Currently
Author: Wayne Walker <wwalker AT solid-constructs DOT com>
Date: Fri, 1 Oct 2010 10:48:15 -0500
I've verified that the RAID 5 will write a sustained 75 MB/sec, -- Wayne Walker wwalker AT solid-constructs DOT com (512) 633-8076 Senior Consultant Solid Constructs, LLC -- Start uncovering the many
Make sure to turn on rsync checksum-caching. It does what you want but may not be on by default. RAID5 does suck but may or may not be your issue. Note that 75MB/sec sustained writes to large files d
Author: Les Mikesell <lesmikesell AT gmail DOT com>
Date: Thu, 07 Oct 2010 11:41:47 -0500
Checksum-caching doesn't change the amount of data transferred - which should only be the differences in any case. What it does is save uncompressing the file to re-compute the checksums on the serve