Wiebe Cazemier wrote: > Carsten Lorenz wrote: > >> I started the first backup to an empty directory on a second server. >> I'm wandering about the low speed of ca. 1.6MB/s >> >> Both servers are DL380 with dual PIII 833MHz running debian, python2.3, >> librsync 0.9.7-1 and rdiff-backup 1.0.0-0.cvs20050819 (thanks to Dean >> Gaudet for the debian package). >> They are directly connected by gigabit. >> >> I started rdiff-backup this way: >> rdiff-backup -v5 --terminal-verbosity=4 --ssh-no-compression >> /mnt/files/ 192.168.0.1::/mnt/raid/backup/fileserver2/ >> >> Everything looks fine: >> CPU-usage on the source-server is ca.15% for ssh and ca. 6% for >> rdiff-backup >> CPU-usage on the destination is ca. 18% for sshd and ca. 12% for >> rdiff-backup >> No swap-space is used. >> >> rdiff-backup needs 132s to transfer a 140MB file (1.1MB/s). >> While rdiff-backup works on the next file scp transfers the same file >> in 15s (9.3MB/s)! >> >> Since we want to backup one tera-byte of data this would last more >> than a week. >> >> Has anyone hints how to speedup rdiff-backup? >> >> Carsten > > > What filesystems are your source and destinatin partition? What are > the mount options? Could you give me the output of "mount" of both > machines?
I don't think that the file system interferes here. Both file systems are xfs on raid5 systems. This is the actual output from mount: source: /dev/sde1 on /mnt/files type xfs (rw,noatime,nodiratime,logbufs=8) destination (4 partitions through LVM2): /dev/mapper/VG1-LOGVOL1 on /mnt/raid type xfs (rw,noatime,nodiratime,logbufs=8) We added the additional options for testing, but they don't change anything. Both can of cause transfer more than 1.6MB/s. Reading or writing files. ;-> Copying local to an identical raid-system transfers ca. 100MB/s > Also, when copying with SCP, do you copy to the same target partition > as you would with rdiff-backup? Yes and i used the same file and a different file with identical results. Carsten _______________________________________________ rdiff-backup-users mailing list at [email protected] http://lists.nongnu.org/mailman/listinfo/rdiff-backup-users Wiki URL: http://rdiff-backup.solutionsfirst.com.au/index.php/RdiffBackupWiki
