Considering that a “3TB” hard-drive has 3000000000000 bits, or 2.72 TB, your
number is about what there actually is on the drive.
Any drive manufacturer will measure the byte metric system in orders of 1000,
rather than 1024. So while a terabyte should have 1024 * 1024 * 1024 * 1024 =
1,099,511,627,776 bytes, they’ll market a “1TB” drive as 1,000,000,000,000
bytes, which is technically only 0.9094 TB.
To make a greater distinction, people have created units called “Kibibytes”
(KiB), “Mebibytes” (MiB), “Gibibytes” (GiB) and so on, which refer to the
proper 1024-based orders.
Fun fact: Even though NAND chips contain a proper amount of memory (8 GiB per
die, these days, with many per package), and so a solid-state drive might
actually have 160 GiB, the manufacturers will pretend it only has
160,000,000,000 bytes and keep the remaining 11,798,691,840 bytes (~11 GiB) as
spare area for wear levelling and replacement of damaged blocks.
They also usually round drives like 64 GB and 128 GB down to 60 GB and 120 GB,
and use that additional area for redundancy or other backup measures.
From: Ken DeWitt
Sent: Monday, August 20, 2012 11:53 PM
To: Skull Space Discussion List
Subject: [SkullSpace-Discuss] hard drive partition
I would like to ask what the group thinks is the best format to give to a hard
drive so you can get the most use out of a hard drive? NTFS lets you only use
2.7 tb of a 3 tb hard drive. I am trying to see if I can use to full 3 tb or
as close to it as possible. It does not matter which os can access it.
Any question or comments you can email or call me at any time.
I will get back to you as fast as I can.
Thank you and have a nice day!!
Ken DeWitt
Your Fellow Tech. Guy
Phone # : 204-998-3218
Email: mailto:kendew...@yourfellowtechguy.comftg.ca
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