Hi Folks,I have a Dell Dimension 9200 (XPS410) and the System disc is on two WD Sata 2 hard drives in a RAID 0 combination. It's pretty good but I wanted to juice it up a little.So in order to speed things up a bit I have replaced the RAID 0 discs with a single SSD.(It's a SATA 3 SSD but is obviously going to work only at SATA 2 speed on my current mobo.)The effect of having the SSD is that everything (apart from the time taken to load the BIOS of course) is now at least twice as fast. I.e. nearly all programs load in 50% or less than previously and other stuff is generally quicker.My question is this:If I were to buy another SSD and set up a RAID 0 formation with the two SSDs, would I see any further increase in performance?I have two views and obviously one is wrong:1. In RAID 0 twice as much data will be made available in the same time, so yes it should be faster?2. RAID 0 improves performance by eliminating (or reducing) the seek latency on the second drive, but since this is tiny on an SSD, there won't be much difference?Which view is correct please?Regards.
Yes, raid will be faster than your single ssd...
Will it be marginally faster (due to the very short seek time on an SSD) or will it be considerably faster, ie. almost twice as fast.
What is your view please?
Have you any experience with SSD connected in RAID 0 to verify that statement? I would have thought that the OP's statement labeled "2" would be more accurate. The primary increase in speed using drives having rotating platters is the reduction in latency caused by the need to wait for the correct sectors to be brought into position under the read/write heads. SSDs have a much smaller latency due to the fact that one is only waiting for addressing the correct data, and the data to be read into the I/O buffers. RAID 0 only reduces the access time by about 30% even with rotating platter hard drives.
Dell Forum member since 2005
Single M4 128GB ssd
Two M4 128GB in R0
Thanks for the screenshot info, it looks pretty conclusive.
Even though it seems slightly illogical given the very small access times for SSDs, I don't have to fullly understand it to benefit from it.
I'll be using a RAID 0 set up.
I'll post the results here when I get them.
Thanks very much for the info. All my experience is with "rotating machinery" and I've been wondering if a RAID configuration would help with SSDs.
Good luck, and I'll be interested in how things work out.