Date: Mon, 22 Aug 2011 14:43:57 +0200 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-stable@freebsd.org Subject: Re: WD Advanced Format: do I need to do something special? Message-ID: <j2tiue$vh$1@dough.gmane.org> In-Reply-To: <4E4DBC24.1070007@rawbw.com> References: <4E4CD19E.5070108@rawbw.com> <4E4DBC24.1070007@rawbw.com>
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On 19/08/2011 03:28, Yuri wrote: > Following instructions here > (http://ivoras.net/blog/tree/2011-01-01.freebsd-on-4k-sector-drives.html) I > destroyed my previous ZFS pool with 512 byte sectors and did this: > gnop create -S 4096 /dev/ad4 > zpool create mypool /dev/ad4.nop > zpol create mypool/mydir > zpool export mypool > gnop destroy /dev/ad4.nop > zpool import mypool > > Now this command 'zdb -C data | grep ashift' shows ashift=12 (4096 byte > sectors). > > However, when I begin to copy a lot of files files into /mypool/mydir > online radio player gets severely affected. Sound get interrupted all > the time. Itrettuptions stop after 1-2 secs after I stop copying. > This didn't happen with sector size 512 bytes. > > What is wrong? Which version of FreeBSD are you doing this on? Do you have any non-default tuning?
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