Re: md faster than h/w?

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Max Waterman wrote:

Then I unmount /dev/sdb and it's back up to 155MB/s !?!?!

It's not making any sense to me :(


OK, the 'hdparm -t' numbers are always low for a device that is mounted.

i.e. an unmounted device gets 3-4 times the bandwidth of a mounted device.

Of course, bonnie++ only works on mounted devices, but gives me
reasonable (but not great) numbers (130MB/s) which don't seem to vary
too much with the kernel version.

Max.
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