On 08/04/15 07:05, Chris Bannister wrote:
On Tue, Aug 04, 2015 at 10:49:52AM +0100, Ian Clark wrote:
On 28 July 2015 at 23:52, William A. Mahaffey III <w...@hiwaay.net> wrote:
[anip]
The RAID in question has 4 active drives, 1 parity drive & 1 spare, created
from identical ~900 GiB partitions on each of 6 7200 RPM 1 TB SATA3 HDD's.
What are your partition values (for the underlying drives), it sounds
like these aren't aligned correctly.
(I have a 3x2TB SATA HDs in raid5 and your above command runs in 3 seconds.
grrr, there is no 'above command' it's been snipped. :(
Here it is:
time dd if=/dev/zero of=./testfile bs=16k count=32768
executed while sitting in my home directory on the RAID5 /home partition.
--
William A. Mahaffey III
----------------------------------------------------------------------
"The M1 Garand is without doubt the finest implement of war
ever devised by man."
-- Gen. George S. Patton Jr.