A Dimecres 28 Maig 2008, Dave Howorth va escriure: > Leopold Palomo-Avellaneda wrote: > > A Dimecres 28 Maig 2008, Leopold Palomo Avellaneda va escriure: > >> A Dimarts 27 Maig 2008, Shawn (Red Mop) va escriure: > >>> Paul pretty much covered everything I would say. Don't do the > >>> compression settings, as they won't help enough to be worth it in this > >>> situation. > >>> > >>> "whole-file: 1" is how you tell dirvish to use --whole-file, it's in > >>> the dirvish.conf man page. > >>> > >>> Let us know if this helps, and good luck. > >> > >> Thanks for all. Tomorrow I will see how it would be done. > >> > >> Regards, > > > > still doing the backup. :-( > > since 1am. > > Your configuration is not a good one for rsync. Best is if there is any > possibility to change it as others have suggested so either: > > (a) the backup disks are mounted locally (not via NFS) to your main > server, or > (b) the machine with the backup disks is able to have rsync installed on > it, and enough memory for rsync to run sensibly.
The icy box _only_ offer network connection. So, maybe one option should be use another box (with a Linux) and this external hd connected via nfs. Then I could have a bot with ram and cpu to run rsync. But, by now, I couldn't. > As it is, it looks like most time is spent transferring files, since > your logs say "File list generation time: 882.634 seconds" and "File > list generation time: 927.970 seconds" which is only 15 mins if my > arithmetic is correct. Even the total bytes transferred is only 90 MB or > so. Which points to NFS speed as the main suspect, IMHO. yes, I agree, but let me show you some numbers. I have a directory with dumps of svn. The directory has a size of: ris:/opt/backup# du -sh /srv/seg/repositori/ 3,5G /srv/seg/repositori/ ris:/opt/backup# du -s /srv/seg/repositori/ 3590972 /srv/seg/repositori/ if I do I simple copy of the whole directory to the nfs unit, I got: ris:/opt/backup# time cp -r /srv/seg/repositori /opt/backup/test/ real 18m26.502s user 0m0.148s sys 0m6.532s so, it has needed 18m and 26.502 s to copy 3.5G. So, making some division: 3590972/(18*60 + 27) = 3243.8 ~ 3.5 Mb/s > As far as I can see, you haven't posted your NFS export and mount > settings, nor any measurement of actual network transmission rates. the server mounts the nfs unit with: ulises:/mnt/md1/backup /opt/backup nfs rsize=32k,wsize=32k,intr,rw,nfsvers=3,retrans=10 0 0 and the icy box export the unit: /mnt/md1/backup X.Y.Z.K(rw,no_root_squash,sync) > Those would be useful to help diagnosis further. It may be possible to > speed up NFS but your backups will never be as fast as they could be > while you continue to use it. Thanks for all. Leo _______________________________________________ Dirvish mailing list [email protected] http://www.dirvish.org/mailman/listinfo/dirvish
