From: "H. Peter Anvin" <hpa@zytor.com>
To: Tejun Heo <tj@kernel.org>
Cc: Yuhong Bao <yuhongbao_386@hotmail.com>,
jeff@garzik.org, ben.collins@ubuntu.com,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org,
hmh@debian.org
Subject: Re: support for drives larger than 2TiB
Date: Sun, 25 Jul 2010 01:07:46 -0700 [thread overview]
Message-ID: <4C4BF0D2.1070503@zytor.com> (raw)
In-Reply-To: <4C4BEF61.5010203@kernel.org>
On 07/25/2010 01:01 AM, Tejun Heo wrote:
> (cc'ing hpa, hi!)
> Hello,
>
> On 07/24/2010 08:40 PM, Yuhong Bao wrote:
>>> However, 2TiB limit is
>>> inherent in the BIOS programming interface and currently the only way
>>> to overcome it is using a completely different BIOS interface (EFI,
>>> that is).
>>
>> Nope, look at the Int13 extensions, it already support 64-bit LBA.
>
> Ah, yeah, that sounds much more logical than requiring transition to
> EFI. Does anyone know how wide spread the support for this extension
> is in BIOSes? Do the bootloaders support this?
>
> Thanks.
>
Syslinux 4 supports it with full 64-bit capabilities. SeaBIOS (used in
Qemu/KVM) supports it, and I know at least some hardware/firmware RAID
solutions support it; I recently got access to a 3 TB SATA drive but due
to NDA requirements I can't reveal the results of that testing.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2010-07-25 8:08 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-24 9:58 support for drives larger than 2TiB Tejun Heo
2010-07-24 12:21 ` Henrique de Moraes Holschuh
2010-07-24 12:36 ` Alex Buell
2010-07-24 13:49 ` Valdis.Kletnieks
2010-07-24 21:15 ` Alex Buell
2010-07-24 23:08 ` Stan Hoeppner
2010-07-25 7:56 ` Tejun Heo
2010-07-25 8:05 ` Mikael Abrahamsson
2010-07-24 18:40 ` Yuhong Bao
2010-07-24 18:40 ` Yuhong Bao
2010-07-24 21:38 ` Greg Freemyer
2010-07-24 23:22 ` Henrique de Moraes Holschuh
2010-07-25 7:49 ` Tejun Heo
2010-07-25 2:25 ` Yuhong Bao
2010-07-25 2:25 ` Yuhong Bao
2010-07-25 8:01 ` Tejun Heo
2010-07-25 8:07 ` H. Peter Anvin [this message]
2010-07-25 8:20 ` Tejun Heo
2010-07-25 18:52 ` H. Peter Anvin
2010-07-27 8:41 ` Tejun Heo
2010-07-25 8:26 ` Alex Buell
2010-07-25 18:53 ` H. Peter Anvin
2010-07-24 18:48 ` Yuhong Bao
2010-07-24 18:48 ` Yuhong Bao
2010-08-19 13:12 ` Mark Lord
2010-08-23 7:40 ` Yuhong Bao
2010-08-23 7:40 ` Yuhong Bao
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