<div dir="ltr"><div>My dual dock can do 42GB in 25 minutes to a single drive.<br><br>The drive is a WD Green 3TB, using the dump utility (which is specific to the ext file system), and there is compression 1.4:1<br><br>This comes to 45MB/sec (or is it 31.5MB/sec?)<br>
<br>See the output below:<br><br> DUMP: Date of this level 0 dump: Sun Aug 3 03:01:01 2014<br> DUMP: Dumping /dev/sda1 (/) to /backup/.../backup-2014-08-03.dump<br> DUMP: Label: none<br> DUMP: Writing 64 Kilobyte records<br>
DUMP: Compressing output at compression level 2 (zlib)<br> DUMP: mapping (Pass I) [regular files]<br> DUMP: mapping (Pass II) [directories]<br> DUMP: estimated 60199515 blocks.<br> DUMP: Volume 1 started with block 1 at: Sun Aug 3 03:04:06 2014<br>
DUMP: dumping (Pass III) [directories]<br> DUMP: dumping (Pass IV) [regular files]<br> DUMP: 20.06% done at 40129 kB/s, finished in 0:19<br> DUMP: 46.15% done at 46223 kB/s, finished in 0:11<br> DUMP: 71.78% done at 47962 kB/s, finished in 0:05<br>
DUMP: 96.13% done at 48183 kB/s, finished in 0:00<br> DUMP: Closing /backup/0/backup-2014-08-03.dump<br> DUMP: Volume 1 completed at: Sun Aug 3 03:25:50 2014<br> DUMP: Volume 1 took 0:21:44<br> DUMP: Volume 1 transfer rate: 32333 kB/s<br>
DUMP: Volume 1 60104832kB uncompressed, 42162637kB compressed, 1.426:1<br> DUMP: 60104832 blocks (58696.12MB) on 1 volume(s)<br> DUMP: finished in 1303 seconds, throughput 46128 kBytes/sec<br> DUMP: Date of this level 0 dump: Sun Aug 3 03:01:01 2014<br>
DUMP: Date this dump completed: Sun Aug 3 03:25:50 2014<br> DUMP: Average transfer rate: 32333 kB/s<br> DUMP: Wrote 60104832kB uncompressed, 42162637kB compressed, 1.426:1<br> DUMP: DUMP IS DONE<br></div><div><div>
<div><div><div class="gmail_extra"><br>-- <br>Khalid M. Baheyeldin<br><a href="http://2bits.com" target="_blank">2bits.com</a>, Inc.<br>Fast Reliable Drupal<br>Drupal optimization, development, customization and consulting.<br>
Simplicity is prerequisite for reliability. -- Edsger W.Dijkstra<br>Simplicity is the ultimate sophistication. -- Leonardo da Vinci<br>For every complex problem, there is an answer that is clear, simple, and wrong." -- H.L. Mencken<br>
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