Re: Does Linux support more than 2TB on a USB attached device?
"Stephen J. Gowdy" <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
BTW, the msdos partition table is different than an msdos filesystem (or
partition).
On Tue, 2 Oct 2007, Richard Sharpe wrote:
> Hi,
>
>> There was a mail thread on linux-kernel mailing list just
>> a few days ago ("Truncated Filesystem"). The short answer
>> is that MS-DOS style partition tables have a 2 TB limit.
>> There are at least 2 ways around that. One is to use device
>> mapper to group multiple partitions into a larger logical
>> device (I don't know details of how to do this). The other
>> that was suggested in that thread is to use 'parted' to
>> make the partition(s) instead of using fdisk (or sfdisk or
>> cfdisk).
>>
>> Here's the lkml thread: http://lkml.org/lkml/2007/9/28/387
>>
>> parted is here http://www.gnu.org/software/parted/index.shtml
>> if your distro doesn't have it.
>
> Thank you for that info, but we want to put things like Ext3 on the
> device. Trying to construct a 13TiB FAT file system is probably not much
> use anyway.
>
> Upon further investigation it seems that the READ CAPACITY(16) request
> is not getting to our device, so maybe the SCSI layer is not forwarding
> them over USB.
>
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