Originally Posted by alatteri
just got my mini with that stock 64GB Dell SSD
. Disk Utility formats it out to be 57.4 GB. Only partition on the drive. Is this normal?
As another posted said, yes. I thought some people might be interested in the reasons why...
1. Hard drive manufacturers use 1000 instead of 1024 when converting between bytes, kilobytes, megabytes and gigabytes
2. The drive probably isn't exactly 64,000,000,000 bytes either.
For example, my 16Gb SSD
is actually 15,408,046,080 bytes. This means,
15408046080 / 1024 / 1024 / 1024 = 14.3 Gb
Using the same factor on your 64Gb drive means it probably has 61632184320 bytes so,
61632184320 / 1024 / 1024 / 1024 = 57.4Gb
Spot on the money
Whereas the 1000 .v. 1024 is an established fudge-factor by manufacturers (and accepted by people the world over I suppose), I've not noticed the missing bytes part of this before. Where did your 2,367,815,680 bytes (or 2.2Gb in real terms) go I wonder?
1. You can check yours by opening Terminal and executing
diskutil info /dev/disk0
or fire up Disk Utility and select your SSD
and look at the bottom where it lists the Total Capacity