Server rooms might as well be alien spaceships for most of us. All the blinking lights and miles of cables can scare off even the most devoted company owner. If you’re in change of a large company, the networking and data storage aspects of your enterprise could be well beyond your area of expertise. But if you want to impress your IT staff, it might be best to brush up on some terminology and know the basics of what is going on amongst the towers of technology. Here are three things you should know to help you get acquainted with data storage and servers.


RAID, or redundant array of independent disks, is the memory that keeps your data alive. In large companies, your RAID is probably hardware RAID. Hardware, as opposed to software, is its own independent thing, not attached and dependent on a separate computer. RAID is secure and reliable, and there are many checks and security measures in place to make sure data won’t be lost.

2. Direct Attached Storage

Direct attached storage (DAS) is located in the server room. “Direct attached” means that there is no network between the computer and storage unit. In your server room, this most likely looks like computers hooked up to towers of hard drives. In fact, you have a small-scale DAS on your computer right now – your hard drive is wired to your computer. In a server room, this happens on a much larger scale; one computer might be connected with several towers’ worth of drives.

3. Serial Attached SCSI

Serial attached SCSI, or SAS, might sound like a bunch of random letters, but you shouldn’t be confused. Simply put, SAS is getting data from one hard drive to another. Technology like the so-called cloud is great for moving small amounts of data. However, when you want to move substantial amounts, you need to physically connect one hard drive to another. A physical cable connects two SAS storage devices, and their information is shared.

Hopefully these three terms have helped you understand a little bit of terminology used in your server rooms. But don’t forget to do your homework every now and then. Terms and technology are constantly changing. The best way to keep up-to-date with all of the developments is to check out industry leaders’ websites. Companies like LSI and others will constantly have updates about the newest technology.

Author Bio: Raymond really enjoys writing about different things. One of his favorite things to write about is technology. For more information on LSI, please visit