Selecting Drives for RAID

[MustelaNigripes]

I want to change my system to use RAID 0. I currently have a 250 gb SATA drive with a 32 mb cache. I have not created a RAID setup since before SATA drives came out. At the time, I was using exact duplicate drives. This time however, I am considering saving myself $25 or so and getting a 250 gb drive with a 16 mb cache.

What I want to know is will I be making a mistake in getting the drive with the 16 mb cache for the mirror, or should I splurge and go with the 32 mb cache again? What impact will it have on my system? Will it slow it down? Are there other problems that will arise, assuming I go with the 16 mb cache drive?

Thanks for all input.

 

[Hovaucf]

You should always use the same drives in RAID regardless of which level for stability and performance.

 

[PsyKhiqZero]

Tomshardware did a great article on heterogenous raid arrays. but for 25 bucks i would air on the side of caution and get identical drives.

 

[MustelaNigripes]

Thanks a lot. I was unsure if the cache made a difference, as you are only writing to the second one and do no reads. But, y'all are right. Why gamble it?