On Sat, 16 Jul 2011, Pol Hallen wrote:
Hi folks :-)
after assembled a new hw (xeon, ich10 controller with 5 disks of 2Tb wd -
radi5) I have slow write performance:
20Mb/s :-(((
In addition to the other comments so-far, are these drives WDC EARS
drives?
What's the output of
hdparm -i /dev/sda
If it's something like
Model=WDC WD20EARS-00MVWB0, FwRev=50.0AB50, SerialNo=WD-WMAZ20098633
^^^^
then it has 4KB sectors.
If so, then you'll have to make absolutely sure the partitions are aligned
on a 4KB boundary.
What does the output of
sfdisk -d /dev/sda
look like? (where /dev/sda is one of the disks on your array)
The start of each partition ought to be divisible by 64 evenly for optimal
results.
Gordon
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