What's raid ? and what categories does raid have ?

[Armagedon]

As mentioned above , what is the advantage of raid ? And what categories does raid have ? Thanks in advance .

 

[alex.thomson]

RAID stands for Redundant Array of Inexpensive (Independent) Disks. On most situations, you will be using one of the following four levels of RAIDs are:
* RAID 0
* RAID 1
* RAID 5
* RAID 10 (also known as RAID 1+0)

 

[ritikamehra]

with good seo you can make your website easy to find on the web and attract more traffic and more customers millions of people use search engines such as google, bing and yahoo every day to find and compare the products and services you offer.Just signup using the 'raidhotseo' and you'll get a massive 100% discount making your first three months free.