He's saying if you make your sectors to be 4KB in size instead of normal 512 bytes, you can use a MBR up to 16TB. Consider the sector ratio is made 8:1, so the addressing then can cover the space of (2TB x 16TB.
this is a good read on it and the problems involved.
So, like the old joke, "the advice given is correct, but it might break your computer."
First time I've heard someone using windows even suggesting to do this for windows.
I didn't know windows could even interact as MBR with 4K sectors. As I understand it,
the emulator setup allows older BIOS to interpret the drive as if it was still using 512 byte sectors,
but when the sector is actually accessed, the full amount of 4K can be used for it.
About hard drives which support doing this;
"As of June 2011, there are a limited number of HDDs that support "Advanced Format" or 4k sectors as shown below.
All drives in this list have a physical sector size of 4096 bytes, but not all drives correctly report this to the OS. The actual value reported (via new fields in the ATA-8 spec) is shown in the table as the physical reported sector size. As this is the value partitioning tools use for alignment, it is important that it should be 4096 to avoid misalignment issues.
The logical sector size is the sector size used for data transfer. This value multiplied by the number of LBA sectors on the disk gives the disk capacity. Thus a disk with 4096 byte logical sectors will have a lower maximum LBA for the same capacity compared to a drive with 512 byte sectors. Drives with 512 byte logical sectors offer better compatibility with legacy operating systems (roughly those released before 2009) however drives with 4096 byte logical sectors may offer marginally better performance (e.g. more read/write requests may fit into the NCQ buffer.) "
For the Windows user. Seems Vista is when the ability to do this appeared.
The drive manufacturer can say if the drive is able to do it, and provide the software to partition it that way.
So, the tech you spoke to knew what he was talking about.
Hi, I run Windows 7 Pro SP-1 64-Bit with a ASRock P67 PRO3 (B3)
MoBo that has a UEFI BIOS.
My C, D and E partitions are on a 120 GB NTFS SSD with a MBR.
I installed Windows 7 on a pre-partitioned SSD, so no hidden
I installed a Toshiba PH3200U-1I72 2TB HDD that is Advanced Format
512e and is properly "Aligned" using the Toshiba provided utility.
The PH3200U-1I72 is used as storage only on partitions "F" thru "M"
set as MBR and working perfectly.
I bought a Toshiba PH3300U-1I72 3TB HDD that is also Advanced
Format 512e to replace the 2TB.
I know that 3TBers can't utilize the full capacity in MBR,
and must be set as GPT to do so.
BTW: I would make 5 partitions, 4 NTFS and one small FAT32.
I use Norton's Ghost weekly and it has issues with GPT.
I proceeded to contact various partitioning/cloning software
companies to see if their products could be used in place of
The partial exchange below is between TeraByte Unlimited and me:
"If your new drive uses 4K sector sizes you
wouldn't need to have a GPT."
BTW, This is what my present Toshiba 2TB looks like:
If you expose the 4K sector size and not the emulated
normal 512 byte sector size, you can use an MBR and
use the entire space (up to 16TiB).
With what software and what is the procedure to go about
Can it be done via a Bootable CD or must it be done in Windows
with just my SSD and empty 3TB connected?
It would be a drive feature/option, typically using
a jumper. The BIOS would also have to support the larger
sizes too so it doesn't crash reading larger sectors, a
modern BIOS should be able to handle it.
My hunt for answers from Toshiba is a lost cause as their
support is a TOTAL joke and does NOT offer E-Mail support.
So, I'm here to find out if this "exposing the 4K sector size" can,
indeed, be done to my PH3300U-1I72, and if so, EXACTLY how to go
about doing it.
Also, are there any shortcomings to having the Toshiba "exposing
the 4K sector size" using 5 partitions, 4 NTFS and one small FAT32?
Thanks in advance for any help you can be.