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Re: Problem identified: WAPL/RAIDframe performance problems

On Fri, Nov 30, 2012 at 08:00:51AM +0000, Michael van Elst wrote:
> (David Laight) writes:
> >I must look at how to determine that disks have 4k sectors and to
> >ensure filesystesm have 4k fragments - regardless of the fs size.
> newfs should already ensure that fragment >= sector.

These disks lie about their actual sector size.
The disk's own software does RMW cycles for 512 byte writes.


David Laight:

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