My problem is aligning reads/writes properly on a 3 disk RAID-5 volume with stripe size of 16384. Since my measurements all show the same relatively low read/write performance on the volume matter which offset i choose on the disklabel "partition" (i've tried with the granularity of a single sector and the results are the same).

In FreeBSD 7.0-RELEASE, is there any way to find out a absolute read/write sector location for the beginning of filesystem within a disklabel "partition"?


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Sten Daniel Soersdal
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