As I know 3TB/7200RPM drive used. I suppose sustained data transfer for it <= 150 MB/s. On 21 янв. 2014 г., at 1:28, Jeff Johnson <jeff.johnson@xxxxxxxxxxxxxxxxx> wrote: > 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 -- 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
