Question:Closed 9 years ago. ?
Possible Duplicate: ?Does hard drive buffer size matter? ?
Ok, so not a RAID exactly, but I just bought a drive-less Drobo to use as raw storage for video/photo work and am now browsing hard drives to put into it. In most cases there’s a pretty big price difference between drives with a 16MB/32MB/64MB cache size. In my particular case, with 4 1TB drives in a Drobo, does the cache size increase performance in any way? Thanks in advance!
Answer: Caching allows you to increase processing speed– however, the performance notice can be minimal for the purpose you are using it for (storage). RAID drives will use their full cache.
Edit: Just to explain a bit more on what caching is; it stores data so that future requests can be served faster. That means the higher the cache, the more block data that can be stored, which means it will be able to be retrieved faster.