From: Matthias Schniedermeyer <ms@citd.de>
To: "c.monty" <c.monty@web.de>
Cc: linux-xfs@oss.sgi.com
Subject: Re: XFS formatted partition is shown as 2TB but should be 3TB
Date: Sun, 14 Jul 2013 12:04:44 +0200 [thread overview]
Message-ID: <20130714100444.GA29583@citd.de> (raw)
In-Reply-To: <1373788650050-35001.post@n7.nabble.com>
On 14.07.2013 00:57, c.monty wrote:
> Hi!
>
> On my new HDD WD30EZRX I created a GPT partition table and formatted it with
> XFS.
> Then I put some data (approx. 2.4TB) on that new partition.
>
> However, after restarting the system the disk is identified of size 2TB
> only.
> /knoppix@Microknoppix:~$ sudo fdisk -l
> Disk /dev/sda: 2000.4 GB, 2000421444608 bytes
Kernel reports the disc as 2TB.
...
k>
> My understanding of the issue is:
> 1. The HDD is not identified correctly by the mainboard/Bios with 3TB. This
BIOS isn't important for Linux (in that case). It just has to boot
Linux, after that BIOS is out of the picture (for storage).
> is confirmed by the hardware vendor of my mainboard "Gigabyte P35-DS4",
> means the limit is 2.2TB
P35 sounds too old for me. AFAIR older Intel-Hardware has a problem with
the 2TiB Barrier.
For the 2TiB-Barrier you need a recent system, something younger than
about 2-3 years. Most hardware older can't cope with discs bigger than
2^32 sectors.
>
> How can I recover the data?
> Should I simply create a new partition table either with gdisk or parted?
> Can I make a low-level copy using dd starting from sector 2048 until the end
> to another HDD WD30EZRX (that I have available) and then mount that
> partition?
> Or are there any other options?
Just plug it into a more recent system, it should "just work".
--
Matthias
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prev parent reply other threads:[~2013-07-14 10:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-14 7:57 XFS formatted partition is shown as 2TB but should be 3TB c.monty
2013-07-14 10:04 ` Matthias Schniedermeyer [this message]
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