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Re: ahcisata poor performance
Thank god I used your manual instead of www one for the setup and
my first wedges are aligned as yours (same hole from 34 to 64).
Pity I cannot rebuild biggest partition without copying 2Tb of data,
because of last wedge, which is on raid device. Will do this
tomorrow. At least I don't need more drives making one more raid device
and copying data between them.
On Sat, Jul 26, 2014 at 10:14:53AM +0100, Patrick Welche wrote:
> On Sat, Jul 26, 2014 at 01:05:05PM +0400, Dima Veselov wrote:
> > Sorry, I have lost your last message, but wish to know something about
> > 4k-alignment. What should be aligned to what?
> I suspect it is something like:
> # gpt show wd0
> start size index contents
> 0 1 PMBR
> 1 1 Pri GPT header
> 2 32 Pri GPT table
> 34 30
> 64 14680192 1 GPT part - NetBSD RAIDFrame component
> 14680256 33554432 2 GPT part - NetBSD swap
> Note how I didn't start index 1 at the default 34 (512 byte blocks
> = offset of 17408 bytes which is not divisible by 4k = 4096 bytes),
> but used gpt add "-b" to start at 64 (i.e., offset of 32768 bytes which
> is divisible by 4096).
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