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@gmail.com> wrote:


On 12/29/19 12:19 AM, Evan Leibovitch wrote:


On Sun, 29 Dec 2019 at 00:08, Nicholas Krause <xerofoify@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