The current article on the site about "HD Encoding Face-Off: WMV-HD vs. DivX-HD" contains the following statement in regards to RAID 0.
How many times have you heard this? Who actually believes it?
The simple fact is that the chance of loosing all your data with RAID 0, it not much more than using a single HD for your data.
Look at it this way.
Lets say that the chance of a hard drive failing to the point of data loss is 1 in 100,000. (this is a made up figure as the real value would be different for different HD makes and models).
Neither does any machine with a single hard drive. What is your point?
But I digress.
So you have 1 HD that has a 1 in 100,000 chance of failure in your system.
Now you get another identical drive, and run the two in a RAID 0.
Quiz.. What now is the chance of a HD failing and you loosing all your data?
50%?
Nope..
The chance now of a single hard drive failing is 2 in 100,000.
Hardly what I would call 'risky'.
In a nutshell. RAID 0 is in practice NO MORE RISKY than using a single hard drive.
And if you have a proper backup system (as you should anyway) or use something like RAID 1, there is little risk at all.
However, before you consider RAID 0, keep in mind that even though it's fast and efficient, it's also a bit risky. It does not allow for data redundancy; meaning that if one drive fails in a RAID 0 array, the data is lost on all of the drives within the array.
How many times have you heard this? Who actually believes it?
The simple fact is that the chance of loosing all your data with RAID 0, it not much more than using a single HD for your data.
Look at it this way.
Lets say that the chance of a hard drive failing to the point of data loss is 1 in 100,000. (this is a made up figure as the real value would be different for different HD makes and models).
It does not allow for data redundancy;
Neither does any machine with a single hard drive. What is your point?
But I digress.
So you have 1 HD that has a 1 in 100,000 chance of failure in your system.
Now you get another identical drive, and run the two in a RAID 0.
Quiz.. What now is the chance of a HD failing and you loosing all your data?
50%?
Nope..
The chance now of a single hard drive failing is 2 in 100,000.
Hardly what I would call 'risky'.
In a nutshell. RAID 0 is in practice NO MORE RISKY than using a single hard drive.
And if you have a proper backup system (as you should anyway) or use something like RAID 1, there is little risk at all.