It's based on a jumper on most new drives. On Dec 6, 2010 8:41 PM, "taemun" <tae...@gmail.com> wrote: > On 7 December 2010 13:25, Brandon High <bh...@freaks.com> wrote: >> >> There shouldn't be any problems using a 3TB drive with Solaris, so >> long as you're using a 64-bit kernel. Recent versions of zfs should >> properly recognize the 4k sector size as well. >> > > I think you'll find that these 3TB, 4KiB physical sector drives are still > exporting logical sectors of 512B (this is what Anandtech has indicated, > anyway). ZFS assumes that the drives logical sectors are directly mapped to > physical sectors, and will create an ashift=9 vdev for the drives. > > Hence why enthusiasts are making their own zpool binaries with a hardcoded > ashift=12 so they can create pools that actually function beyond 20 random > writes per second with these drives: > http://digitaldj.net/2010/11/03/zfs-zpool-v28-openindiana-b147-4k-drives-and-you/ > > Cheers,
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