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What is RAID?

C

Carrot44

Golden Member
Could somebody please Explain RAID to me and its advantages and disadvantages too

Yes I did read the FAQ's and did a Search Found almost nothing.

Thanks

Ken
 
It stands for Redundant Array of Inexpensive Drives.

Basically, it's a method of making two or more physically separate hard drives work as one unit. RAID 0, for example allows two or more hard drives to process data simultaneously, which theoratically means that one reads/writes one half of the data and the other the other half. This would theoratically make a two drive RAID 0 array twice as fast as a single hard drive. Of course, this is only in theory and RAID 0 isn't really even RAID, because there is no redundancy.
RAID 1 would take two hard drives and copy the same information to the both of them, making an automatic back-up of whatever it is you have on your hard drive. This is useful in environments in which it's important not to have any downtime.

What's important for you to know is that you're best off using two identical hard drives. "Identical" applies mostly to the size however. If you don't use identically sized HDDs, you will actually lose hard drive space if you RAID them.

Anyway...there should be quite a few RAID guides available online, so look again if you need more info.
 
It's also one of the most frequently asked questions in this forum. A title search for "RAID" spanning the last 50 days will yield around 8 pages of posts. Give that handy search feature a try...
 
ST4RCUTTER
I did about all I got was pages and pages of this and that RAID controller card for sale or what RAID MB is the best for this or that. But virtually nothing as to what RAID really is 🙂

Also Thanks Kjazlaw thats a good article


 
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