On 05/01/07, Robert Fitzpatrick <[EMAIL PROTECTED]> wrote:
I am backing up a big home partition that results in 46GB tar.gz file directly to another FreeBSD machine via NFS and it is taking from 9:30pm until almost 7am the next morning. The source home partition is on a geom mirrored slice, could this be the reason for such a slow backup? The destination server is using RAID, but from the BIOS, not geom. Both servers are using gigabit cards through a gigabit switch.
Lots of potential reasons for it being slow, but on a guess, unless a majority of what you are backing up are text files you will not save very much space by compressing (video and music (or .mp3, .ogg, .avi, .mpg, etc.) are already compressed much better than gzip can) but will incur huge time penalties for redundant and redundant compres- sion. A mirror should result in little or no slowdown in reads (if it is not faster, I cannot recall). The bottleneck may be your network, which would require expertise beyond me to diagnose. As an aside, on a live system many things can cause wild fluctuations in backup speed. -- -- _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
