What is the value of having Raid capability. I am looking for an external hard drive that I can store photos on.
1 Answer from the Community
Raid has 1 of 2 benefits. In Raid 0 mode the entire 4TB of space is available and can be up to twice as fast because each of the 2TB portions are written to at the same time. However, if either 2TB section fails you lose all of the data on the entire 4TB.
Raid 1 duplicates the data in to 2TB sections for redundancy. So, in this mode the drive only store 2 TB, but it is automatically and transparently stored twice. If either of the 2TB sections fails you will not lose any data because the data is duplicated in the other 2TB section.
If you are don't want faster access speed or redundant data then a RAID drive is usually not worth the cost.
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