Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-08 Thread Brandon High
On Tue, Dec 7, 2010 at 11:37 PM, Eugen Leitl wrote: > What about Hitachi HDS723030ALA640 (aka Deskstar 7K3000, claimed > 24/7)? The spec sheets claim 512b sectors, so hopefully it'll work. There's a lot more info to support that at http://www.hitachigst.com/internal-drives/desktop/deskstar/desks

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-07 Thread Eugen Leitl
On Tue, Dec 07, 2010 at 05:17:08PM -0800, Brandon High wrote: > On Mon, Dec 6, 2010 at 7:10 PM, taemun wrote: > > Sorry, you're right. If they're using 512B internally, this is a non-event > > here. I think that most folks talking about 3TB drives in this list are > > looking for internal drives.

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-07 Thread Brandon High
On Mon, Dec 6, 2010 at 7:10 PM, taemun wrote: > Sorry, you're right. If they're using 512B internally, this is a non-event > here. I think that most folks talking about 3TB drives in this list are > looking for internal drives. That the desktop dock (USB, I presume) > coalesces blocks doesn't real

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-06 Thread taemun
On 7 December 2010 13:55, Tim Cook wrote: > It's based on a jumper on most new drives. > Can you back that up with anything? I've never seen anything but requests for a jumper that forces the firmware to export 4KiB sectors. WD EARS at launch provided the ability to force the requested LBA to be

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-06 Thread Brandon High
On Mon, Dec 6, 2010 at 6:40 PM, taemun wrote: > 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

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-06 Thread Tim Cook
It's based on a jumper on most new drives. On Dec 6, 2010 8:41 PM, "taemun" wrote: > On 7 December 2010 13:25, Brandon High 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

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-06 Thread taemun
On 7 December 2010 13:25, Brandon High 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 dr

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-06 Thread Brandon High
On Sun, Dec 5, 2010 at 9:35 PM, Fred Liu wrote: > Anyone who has experience with 3TB HDD in ZFS? Can solaris  recognize this > new HDD? 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

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-06 Thread Sandon Van Ness
On 12/06/2010 05:17 AM, taemun wrote: > On 6 December 2010 21:43, Fred Liu > wrote: > > 3TB HDD needs UEFI not the traditional BIOS and OS support. > > > > Fred > > > Fred: > http://www.anandtech.com/show/3858/the-worlds-first-3tb-hdd-seagate-goflex-desk-

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-06 Thread taemun
On 6 December 2010 21:43, Fred Liu wrote: > > 3TB HDD needs UEFI not the traditional BIOS and OS support. > > > > Fred > Fred: http://www.anandtech.com/show/3858/the-worlds-first-3tb-hdd-seagate-goflex-desk-3tb-review/2 Namely: "a feature of GPT is 64-bit LBA support. With 64-bit LBAs the larges

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-06 Thread Fred Liu
I haven't tested them, but we're using multi-terabyte iscsi volumes now, so I don't really see what could be different. The only possible issue I know of, is that 3TB drives uses 4k sectors, which might not be optimal in all environments. Vennlige hilsener / Best regards 3TB HDD needs UEFI not t

Re: [zfs-discuss] 3TB HDD in ZFS

2010-12-06 Thread Roy Sigurd Karlsbakk
- Original Message - Hi, Anyone who has experience with 3TB HDD in ZFS? Can solaris recognize this new HDD? I haven't tested them, but we're using multi-terabyte iscsi volumes now, so I don't really see what could be different. The only possible issue I know of, is that 3TB dri