Peter Jeremy writes: > > > $DUMP_LEVEL -D $DUMPDATES_FILE -Lau -f > > > > > > gets me 2 +/- 0.2 mbytes/sec. > > > Is this a reasonable value? (I.e. is dump the limiting > > > factor?) Do I need to reconfigure something, or is my hardware just > > > lame? > > I presume you are dumping an internal SCSI disk onto a USB disk. Dump > is slow but shouldn't be that slow. Doing a dump of root, I get > 10MB/s on one system and 15MB/s on another. Even my P-120 firewall > gets 2.7MB/s and it is actually CPU limited, not disk limited. What > do you get if you do the dump to /dev/null? huff_at_>>dump 0 -D /tmp/DF -Lau -f /dev/null /usr >& /tmp/null_dump huff_at_>>cat /tmp/null_dump DUMP: Date of this level 0 dump: Mon Jan 29 10:26:38 2007 DUMP: Date of last level 0 dump: the epoch DUMP: Dumping snapshot of /dev/da1s1d (/usr) to /dev/null DUMP: mapping (Pass I) [regular files] DUMP: mapping (Pass II) [directories] DUMP: estimated 27192344 tape blocks. DUMP: dumping (Pass III) [directories] DUMP: dumping (Pass IV) [regular files] DUMP: 0.75% done, finished in 11:01 at Mon Jan 29 21:33:18 2007 DUMP: 3.10% done, finished in 5:12 at Mon Jan 29 15:49:28 2007 DUMP: 5.74% done, finished in 4:06 at Mon Jan 29 14:48:31 2007 etc. DUMP: 95.56% done, finished in 0:10 at Mon Jan 29 14:12:07 2007 DUMP: 97.56% done, finished in 0:05 at Mon Jan 29 14:12:37 2007 DUMP: 99.22% done, finished in 0:01 at Mon Jan 29 14:13:52 2007 DUMP: 99.99% done, finished soon DUMP: DUMP: 27485576 tape blocks on 1 volume DUMP: finished in 13818 seconds, throughput 1989 KBytes/sec DUMP: level 0 dump on Mon Jan 29 10:26:38 2007 DUMP: Closing /dev/null DUMP: DUMP IS DONE It would seem the USB connection is not the bottleneck. :-) The last possibility would be a local misconfiguration that limits the speed. Ideas for what that might be are appreciated, But assuming it really is dump - what next? Robert HuffReceived on Mon Jan 29 2007 - 20:48:54 UTC
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:39:05 UTC