On Samstag, 24. Juli 2010 Eric Sandeen wrote:
> > If it really is one using -s size=4096 is the right thing to do.
> Haven't read the whole thread so maybe this is redundant, but make
> sure all partitions (if any) are 4k aligned as well (unless it has
> the secret-handshake sector 63 offset...)
Thank you Christoph for clarification, also thanks to Eric - I've been
aligning all partitions to a multiple of 512 sectors since a long time,
which fits all stripe set sizes up to 256k. Too bad that even Linux
fdisk and parted still don't do something like that, today I setup a
Novell SLES 11 with XEN VM, and everywhere parted would align the first
partition (when using GPT) to sector 34.. what a number.. Good that 4K
sector drives arrive now, so the tools will hopefully change for a
BTW: AFAIK SSD drives have a (sometimes very large) internal alignment
of bytes which should be used as a "stripe size" to meet the optimal I/O
size. Is there a way to find out how big that is yet?
mit freundlichen Grüssen,
Michael Monnerie, Ing. BSc
it-management Internet Services
http://proteger.at [gesprochen: Prot-e-schee]
Tel: 0660 / 415 65 31
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