Any suggestions for an efficient backup system?
Every once in a while, I get a really perverse idea. One of my most perverse was the idea of building my own computers without any kind of a case. Instead of building them into a case, my idea was to attach the mother boards, disk drives, power supplies, ..., to the walls and ceiling of my office. My office would become the computer case. Each computer would be grouped together on the wall, but there could be overlap between adjacent computers.
Ventilation shouldn't be a problem.
Another idea was to use an old telephone system cabinet. This is a big cabinet for a telephone system that had been installed a large, regional bank about 30 years ago. It was something like 6 feet tall and 7 feet wide. The front of the cabinet had three doors -- a big door on the left, a big door on the right, and a small door in the center. The cabinet is built with different dimensions than a normal computer cabinet. My idea there was to get some thin sheets of metal on which to fasten the mother boards and the other components and mount those inside the telephone case. Using that method, I could have put ten to twenty computers quite easily in that cabinet. The question was what to do with the center part which was only about a foot and a half wide. I decided that what I needed to do was to build a shatterproof plexiglass case in the middle and keep rattlesnakes in it. I ended up getting a standard sized computer cabinet and gave the telephone system cabinet away.
Hate to tell you this but Darren Kitchen from Hak5 beat you to that idea. He built a server and hung it on the wall. Believe me ventilation is a factor. I had this NAS that was poorly ventilated and now the hard drives are cooked literally. The circuits are brown and burnt. Gaming cases are designed to be RAID ready because the load time is much faster on RAID drives than non-RAID. So they have a hard drive cage where you can store four to five hard drives and has a huge fan in front of the hard drives.
Hmmm. I just looked for pictures and found one of a computer in a picture frame for hanging on the wall. I can see where ventilation would be a factor in that.
If you want to boot faster, forget RAID and go with a Solid State Disk.
Oh yeah SSD FTW always. Problem with SSD is cost and space limitation. So far I use SSD for my system disk and RAID for my game disk. That will solve the boot and game loading problem/space.
RAID Level 1 should certainly provide increased read performance, since you basically have two mirrored drives, which is basically like having a single drive with two read heads - as a result average latency time would probably not be reduced, but average seek time should be reduced.
techtalknow
Tufted Titmouse
Joined: 28 Mar 2013
Age: 25
Gender: Male
Posts: 42
Location: Oklahoma City, OK
Well, we've now got the NSA up our ***, so I'm not trusting my personal data to any online cloud. Since I have a Macbook Pro, I can simply connect a Time Capsule via Wi-Fi and back up my data using the Mac Utility "Time Machine". http://en.wikipedia.org/wiki/Time_Machine_(Mac_OS)
If you feel like having the government watching you and knowing everything about you, then try Copy or Carbonite for backup utilities.
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RAID Level 1 should certainly provide increased read performance, since you basically have two mirrored drives, which is basically like having a single drive with two read heads - as a result average latency time would probably not be reduced, but average seek time should be reduced.
You may be right.
After thinking about it, for a single read, the controller could issue read commands to all disks and used the data from whichever drive reported first. For multiple reads, the controller could split the load between drives. In either case, I can see that the reads would be faster.
How well do the controllers actually do this? The RAID 1 setups I've seen didn't seem to have any performance improvement.
By the way, I bought a solid state disk some time ago to use on my Linux workstation, but I never got it to install properly. I'm thinking about putting it on my OpenBSD development computer, but performance really isn't that much of an issue with that computer.
techtalknow
Tufted Titmouse
Joined: 28 Mar 2013
Age: 25
Gender: Male
Posts: 42
Location: Oklahoma City, OK
I recommend reading about the technology Apple uses called "Fusion Drive". Here's the Wikipedia article: http://en.wikipedia.org/wiki/Fusion_Drive
This should give you a good idea of how to configure your HDD setup..Who knows, maybe your computer would work faster...
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