yes
On Thu, Dec 17, 2009 at 12:30:46AM +0100, Robert wrote:
> Hi,
>
> I just read [1,2] that Western Digital (and probably others) will start
> to sell disks with an internal block size of 4KB instead of 512 byte.
>
> The article mentions that this might lead to a considerable performance
> impact if the logical partition alignment is not in sync with the
> physical one ("e.g. if partitions starts at sector 63 wich is not a
> multiple of 4KB" [1]):
> "If a block of 4KB should be written, which is (logically) aligned, but
> physically in fact 2 sectors, then both physical sectors will need to be
> read, partially modified and then written back which leads to a serious
> performance hit." [1]
>
> Any comments from someone who has a good knowledge of this area? Will
> this affect OpenBSD?
>
> regards,
> Robert
>
> [1] (german)
> http://www.heise.de/newsticker/meldung/Festplatten-mit-4-KByte-Sektorgroesse-887759.html
> [2] http://www.wdc.com/wdproducts/library/whitepapers/en/2579-771430.pdf
