On Jul 1, 2010, at 7:29 PM, Derek Olsen wrote: > doh! It turns out the host in question is actually a Solaris 10 update 6 > host. It appears that an Solaris 10 update 8 host actually sets the start > sector at 256.
Yes, this is a silly bug, fixed years ago. > So to simplify the question. If I'm using ZFS with EFI label and full disk > do I even need to worry about lun alignment? I was all excited to do some > benchmarking and now it appears that zfs will just do the right thing > (assuming the right OS update). It is not much of a problem on 512 byte sector HDDs. It is more of a performance problem on RAID arrays, especially if you are using RAID-5. But since it has been fixed for so long, we rarely see anyone reporting it as a problem. -- richard -- Richard Elling rich...@nexenta.com +1-760-896-4422 ZFS and NexentaStor training, Rotterdam, July 13-15, 2010 http://nexenta-rotterdam.eventbrite.com/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
