Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Wed, 04 Apr 2012 14:12:02 +0200, Pascal BERTON <pascal.berton3 at free.fr> wrote: > Dirk, > > Isn't there an error in your numbers ? > You say that with you non-custered system you transfer 500GB in 400 > seconds, which means more than a GB per second, and I can't figure out > how you can achieve that with 100Mb link that can't run faster than > roughly 10MB/s. Or did I miss something ? > yes, _rsync_ does not transfer all 500G of data > Regards, > > Pascal. > > > Le 04/04/2012 12:15, Dirk Bonenkamp - ProActive a écrit : >> Hi, >> >> First off all: I posted a similar thread on the OCFS2 mailing list, but >> I didn't receive a lot of response. This list seems to be busier, maybe >> more luck over here... >> >> I'm having trouble backing up a OCFS2 file system. I'm using rsync and I >> find this way, way slower than rsyncing a 'traditional' file system. >> >> The OCFS2 filesytem lives on a double primary DRBD setup. DRBD runs on >> hardware RAID6, dedicated bonded gigabyte NICs, I get a 160 Mb/s syncer >> speed. Read and write speeds are OK on the file system. >> >> Some figures: >> >> My OCFS2 filesystem is 3.7 Tb in size, 200 Gb is used, has about 1.5 >> million files on it in 95 directories. About 3000 new files are added >> each day, few files are changed. >> >> Rsyncing (directlty to the rsync daemon, no ssh shell overhead) this >> filesystem over a Gb connection takes 70 minutes: >> >> Number of files: 1495981 >> Number of files transferred: 2944 >> Total file size: 201701039047 bytes >> Total transferred file size: 613318155<tel:613318155> bytes >> Literal data: 613292255<tel:613292255> bytes >> Matched data: 25900 bytes >> File list size: 24705311 >> File list generation time: 0.001 seconds >> File list transfer time: 0.000 seconds >> Total bytes sent: 118692 >> Total bytes received: 638195567<tel:638195567> >> >> sent 118692 bytes received 638195567<tel:638195567> bytes 154163.57 >> bytes/sec >> total size is 201701039047 speedup is 315.99 >> >> To compare this, I have a similar system (the old, non-HA system doing >> the exact same thing), with an ext3 filesystem. This one holds 6.5 >> million files, 500 Gb, about 10.000 new files a day. Backup done with >> rsync through ssh on a 100 Mbit line takes 400 seconds. >> >> I'd like to know if somebody has encountered similar problems and maybe >> has some tips / insights for me? >> >> Kind regards, >> >> Dirk >> >> >> >> >> _______________________________________________ >> drbd-user mailing list >> drbd-user at lists.linbit.com >> http://lists.linbit.com/mailman/listinfo/drbd-user > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user