On 27 Dec 2014, at 22:57, Warren Block <wblock at wonkity.com> wrote:> On Sat, 27 Dec 2014, Dr Josef Karthauser wrote: > >> I only have 'zfs_load=?YES?? in my /boot/loader.conf. I?m hoping the problem is that I missed the ?-a4k? on the ?gpart add?. I?m starting again and will report back whether it now works or not! :). > > Misalignment just makes for slow performance, particularly on writes. >Ok, fixed. With -a4k is it now booting. Looks like the partitions weren?t aligned! As to whether they ought to be aligned by default, this box is on a slightly older version: 10.0-RELEASE-p7 FreeBSD 10.0-RELEASE-p7 #0: Tue Jul 8 06:37:44 UTC 2014 so perhaps that?s been fixed since. Many thanks folk for your help! Cheers, Joe -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 496 bytes Desc: Message signed with OpenPGP using GPGMail URL: <http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20141228/8a18be35/attachment.sig>
On 28/12/2014 07:36, Dr Josef Karthauser wrote:> On 27 Dec 2014, at 22:57, Warren Block <wblock at wonkity.com> wrote: > >> On Sat, 27 Dec 2014, Dr Josef Karthauser wrote: >> >>> I only have 'zfs_load=?YES?? in my /boot/loader.conf. I?m hoping the problem is that I missed the ?-a4k? on the ?gpart add?. I?m starting again and will report back whether it now works or not! :). >> Misalignment just makes for slow performance, particularly on writes. >> > Ok, fixed. With -a4k is it now booting. Looks like the partitions weren?t aligned! > > As to whether they ought to be aligned by default, this box is on a slightly older version: > > 10.0-RELEASE-p7 FreeBSD 10.0-RELEASE-p7 #0: Tue Jul 8 06:37:44 UTC 2014 > > so perhaps that?s been fixed since. > > Many thanks folk for your help! >Would you mind testing to see if this is indeed fixed in 10.1 or current? Would be good to ensure this is actually fixed? Regards Steve
On Sun, 28 Dec 2014, Dr Josef Karthauser wrote:> On 27 Dec 2014, at 22:57, Warren Block <wblock at wonkity.com> wrote: > >> On Sat, 27 Dec 2014, Dr Josef Karthauser wrote: >> >>> I only have 'zfs_load=?YES?? in my /boot/loader.conf. I?m hoping the problem is that I missed the ?-a4k? on the ?gpart add?. I?m starting again and will report back whether it now works or not! :). >> >> Misalignment just makes for slow performance, particularly on writes. >> > > Ok, fixed. With -a4k is it now booting. Looks like the partitions weren?t aligned!Alignment alone should not have fixed it. While misaligned drives give poor performance, they should still work.