What make/model of NL-SAS disk drive? The 4TB/7200RPM drives are pushing
sequential media rates of >150MB/sec.
On 1/20/14, 1:23 PM, grant wrote:
Hello,
I’ve got a HWRAID with 10 NL-SAS HDDs.
All of them used in logical volume RAID6.
I’ve tried to benchmark created volume with FIO v2.1.4:
# cat seqwrite.fio
[write]
blocksize=512k
filename=/dev/sda
rw=write
direct=1
buffered=0
ioengine=libaio
iodepth=1
runtime=10m
numjobs=16
#./fio seqwrite.fio
FIO returns:
...
Run status group 0 (all jobs):
WRITE: io=127958MB, aggrb=2132.5MB/s, minb=56530KB/s, maxb=229141KB/s..
2132 / 10 ~ 200 MB/s per HDD, is that possible???
--
------------------------------
Jeff Johnson
Co-Founder
Aeon Computing
jeff.johnson "at" aeoncomputing dot com
www.aeoncomputing.com
t: 858-412-3810 x1001 f: 858-412-3845
4170 Morena Boulevard, Suite D - San Diego, CA 92117
High-performance Computing / Lustre Filesystems / Scale-out Storage
--
To unsubscribe from this list: send the line "unsubscribe fio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
