On Mon, Feb 7, 2011 at 6:15 AM, Yi Zhang <yizhan...@gmail.com> wrote: > On Mon, Feb 7, 2011 at 12:25 AM, Richard Elling > <richard.ell...@gmail.com> wrote: >> Solaris UFS directio has three functions: >> 1. improved async code path >> 2. multiple concurrent writers >> 3. no buffering >> > Thanks for the comments, Richard. All I wanted is to achieve 3 on ZFS. > But as I said, apprently 2.a) below didn't give me that. Do you have > any suggestion?
Don't. Use a ZIL, which will meet the requirements for synchronous IO. Set primarycache to metadata to prevent caching reads. ZFS is a very different beast than UFS and doesn't require the same tuning. -B -- Brandon High : bh...@freaks.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
