[GTALUG] 10TB drive seen as a 2TB drive (twice?)

[Nicholas Krause]

On 12/29/19 12:48 AM, Evan Leibovitch wrote:
> Hrm.
>
> For the 4TB disk in the same system (which has been working for 
> years), fdisk -l reports:
>
> Disk /dev/sdc: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors
> Units: sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 4096 bytes
> I/O size (minimum/optimal): 4096 bytes / 4096 bytes
> Disklabel type: gpt
> Disk identifier: 88C7DF91-CD80-4EEB-AC6B-110119B04DD4
>
> Device     Start        End    Sectors  Size Type
> /dev/sdc1   2048 7814035455 7814033408  3.7T Linux filesystem
>
> Wondering if that helps. Starting to wonder if it's the firmware on 
> the USB external chassis.
Maybe as those numbers look better on the physical side. Try seeing if 
connecting it directly
to a open SATA port and see if that gets you 512 bytes for logical and 
4096 for physical. I've
suspecting that may be it based on the internal drive you proved sector 
size numbers.

Nick
>
>
> On Sun, 29 Dec 2019 at 00:42, Nicholas Krause <xerofoify at gmail.com 
> <mailto:xerofoify at gmail.com>> wrote:
>
>
>
>     On 12/29/19 12:19 AM, Evan Leibovitch wrote:
>>
>>
>>     On Sun, 29 Dec 2019 at 00:08, Nicholas Krause
>>     <xerofoify at gmail.com <mailto:xerofoify at gmail.com>> wrote:
>>
>>
>>         Your using fdisk right. There is a version for GPT disks
>>         called gdisk and you may want to try
>>         that or a GUI program like gparted.
>>
>>
>>     Tried that. gdisk also reports 2TB and refuses to create any
>>     partition larger than that.
>>
>>     - Evan
>     While its stating that you have a sector size of 512 bytes which
>     is odd. Most gpt drives should
>     be 4096bytes per sector, I just double checked. So even if its gpt
>     it may be doing it based on
>     issues with other things, not sure if the computer or device your
>     using at a firmware level
>     supports 4K sectors but it seems maybe that should be checked. Its
>     a common problem
>     with larger drives, I've never run into it as the systems I have
>     are almost all UEFI or later.
>
>     Nick
>
>
>
> -- 
> Evan Leibovitch, Toronto Canada
> @evanleibovitch or @el56

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