Large databases usually require powerful hardware to run.
Professionals, who can design nontrivial solutions in all areas – architecture, availability, maintenance, performance tuning, to name just a few. You need to have highly skilled professionals in the team. Those databases are more expensive to support and maintain. The problem, however, is that the large databases are not good for the customers. Customers usually understand amount of work involved in such projects. Last but not least, customers with multi-terabyte databases do not have problems with multi-kilodollar invoices. They are fun to deal with they give you priceless experience and look cool in your resume. Below are some conversions for standard drive sizes.As the database professional, I like multi-terabyte databases. The drive is 480,000,000,000 bytes in capacity, and after 480,000,000,000 bytes have been converted by a Windows computer into Gigabytes, the total capacity comes to 447 GB. It is important to understand that these 33GB aren’t lost. On an 8GB USB drive the difference between the advertised capacity and the actual capacity is about half a gigabyte, while in our example above the difference is a very noticeable 33GB.
The larger the numbers are, the larger the discrepancies will be. This is why a 480GB SSD will be correctly reported by a Windows computer as 447GB.
This means that when you install a 480,000,000,000 bytes storage drive into a Windows® computer, that computer converts the number of bytes into gigabytes by dividing by 1024 all the way up through the scale, not by dividing by 1,000. The Windows® OS on the other hand uses binary bytes, so 1,024 bytes per Kilobyte, 1,024 KB per Megabyte, and so on. A 480GB SSD is, in other words, actually 480,000,000,000 bytes these are what we call decimal bytes, and it has been an industry standard to use them when advertising storage space.Ī Unix® based operating system like macOS X® or Linux® uses decimal bytes when reporting storage space, so a 480GB SSD will show up as 480GB in Mac Disk Utility for instance. Actual usable capacity may vary.” In other words, the drive capacity is reported on the assumption that 1GB is 1,000,000,000 bytes. If you look at the specifications of any storage device, you will see a note that says something along the lines of ”1 GB = 1 billion bytes. Your drive shows up smaller than advertised because storage drive capacity is calculated and reported slightly differently than other capacities in computing.
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