Setting up Raid 1 -Two 160GB drives but with different cache

Can someone tell me if I will have any issues stting up Raid 1 if one of my drives has an 8 MB cache and the other has a 16 MB cache? Thanks

Nope, you shouldn't have any issues.

I had a 2mb cache and an 8mb cache drive in RAID-0, never had any problems.

I think the cache's are just added together and managed by whatever RAID controller is controlling it.

Nope, the caches are not added together that way unfortunately, for all intents and purposes it will only use 8meg on each drive. The difference between 8 and 16 isn't that significant to warrant a new drive purchase so I wouldn't bother. For an example, my raid controller has 128megs of cache and if I disable it i don't notice much of a difference under normal usage.


Long story short, you're just fine with an 8 and a 16

Though if your data is important I'd reccomend doing a RAID 0 on the two 16's and using the 8 as a backup. I know I tend to over-stress this in my posts but I've lost a lot of data, remember if either drive fails all data is lost, if the board/controller dies all data is most likely lost depending on the situation, drives fall out of arrays etc.