[Dirvish] slow file transfers

madworm_de.dirvish at spitzenpfeil.org madworm_de.dirvish at spitzenpfeil.org
Tue Feb 22 19:25:10 UTC 2011

On 02/22/2011 06:39 PM, Paul Slootman wrote:
> On Tue 22 Feb 2011, Dave Howorth wrote:
>> Some basic parameters for the two filesystems and two others that are
>> involved in my tests are:
>> data    2.0 TB, xfs,      part of 4 disk md RAID10
>> backup  1.2 TB, reiserfs, part of 3 disk 3ware 9650SE RAID5
> 3ware, there's your problem...
Well... I had a 8506-8 running for several years in a backup server. Configured as Raid-5 and plugged into a simple 33MHz PCI slot, and not the 
desired 66MHz 64bit wide one. Granted, the transfer rates were not anywhere near the raw disk speed, but 11MB/s is definitely waaay too slow for this 


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