Separate names with a comma.
Discussion in 'Archived Threads 2001-2004' started by Rob Varto, Feb 10, 2002.
The title says it all...
What is RAID and what does it do? Is it worth the $$$??
RAID basically allows you to treat 2 seperate hard drives as one.
You can RAID Hard Drive A together with Hard Drive B, essentially turning into 1 hard drive. Data is split between each drive, so drive access times greatly improve (both drives can be read from simultaneously).
However the big problem with RAID is that, if one of the drives goes bad, because of the setup, you lose all the data (obviously).
Hope this helps...
Steven describes Raid 0. There are many types of Raid setups. Another popular one is Raid 1 (data redundancy). Raid 0+1 is another popular setup.
Here's a link that should help: http://www.anandtech.com/storage/sho...tml?i=1491&p=1
RAID is simple, but really quite complicated. There are many types of RAID, as stated and each have their ups and downs. RAID is the sort of thing, if you don't know what it is, chances are you wouldn't benefit from it.
And for those that do know what RAID is, the newer implementations with 10k drives can be a nightmare to maintain. We've had many drive failures with both IBM Netfinity's and HP Netservers that have been catastrophic.
A lot of money to pay when you still rebuild a server after a drive dies....
If you are responsible for a server that many people access, then it is worth the $$ as part of an overrall fault tolerance policy. For home use, it is overkill. Search the webs, there are many FAQ's on RAID. RAID 1 and 5 are the most common.
This is a very good link that explains how raid works. You can find more by doing a search for raid primer at any search engine.
I have RAID 0 at home and its great, everything loads so much faster than before I RAIDed. Anything that uses the hard drive on the computer, which is everything, opens up faster. The slowest part of a computer is the harddrive, speed that up and it makes the whole system seem so much faster.