keld@xxxxxxxxxx wrote:
> > Advantage Advantage
> > vs 4 drives vs RAID0
> > Config Drives Seq write Seq read Write Read Write Read
> > ------ ------ ---------- ---------- ----- ----- ---- ----
> > RAID0 4 8.1MB/sec 9.3MB/sec 1.00 1.00 1.00 1.00
> > RAID0 8 16.8MB/sec 15.0MB/sec 2.07 1.61 1.00 1.00
> >
> > RAID1 4 2.1MB/sec 3.6MB/sec 1.00 1.00 0.25 0.38
> > RAID1 8 1.6MB/sec 3.6MB/sec 0.76 1.00 0.09 0.24
> >
> > RAID5 4 16.8MB/sec 9.1MB/sec 1.00 1.00 2.07 0.97
> > RAID5 8 17.2MB/sec 14.9MB/sec 1.02 1.63 2.12 1.60
> >
> > RAID6 4 12.6MB/sec 7.9MB/sec 1.00 1.00 1.55 0.84
> > RAID6 8 14.4MB/sec 14.5MB/sec 1.63 1.83 1.77 1.55
> >
> > RAID10 4 4.0MB/sec 7.3MB/sec 1.00 1.00 0.49 0.78
> > RAID10 8 6.3MB/sec 13.4MB/sec 1.57 1.83 0.37 0.89
> >
> What layout are you using for RAID10?
> Is it Linux MD RAID10?
# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
md1 : active raid10 sdi[7] sdh[6] sdg[5] sdf[4] sde[3] sdd[2] sdc[1] sdb[0]
2118656 blocks 64K chunks 2 near-copies [8/8] [UUUUUUUU]
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