1
Is it possible to have the following setup?
2 x SSD (2x128gb) in RAID-0 (for performance)
+
1 x HDD (1x500gb but using 128gb) in RAID-1 (for redudancy)
If so, does the HDD mirror give a decrease of performance in this setup?
I have virtually no experience using RAID in any setup whatsoever, so please forgive my dumbness if applicable.
Thanks for the input, however the 500gb is a
HDD
, notSSD
! I have a Gigabyte P35-DS3P motherboard with RAID builtin. 1. Will the mirroring on a HDD make the SSD striping work as fast as the slowest drive, being the HDD mirror? 2. Is it not possible to re-create the mirror from the striped setup when the 500gb HDD fails? – ropstah – 2012-06-13T16:15:47.4901I don't think windows software raid supports stacking raid on top of raid, and you would lose a lot of write performance with this setup since writes would have to wait for the slower hdd. – psusi – 2012-06-13T16:20:32.183
@Bigbio2002: From your last edit I make up that recovering is possible from the striped array? :) – ropstah – 2012-06-13T16:24:12.313
Yeah, I misread it. In a RAID-1, if one drive fails, all your data is safe on the other drive. Of course, RAID-1 is not a backup solution. As for performance, RAID controllers typically assume that all drives in the RAID have similar performance characteristics. I couldn't say how yours will perform, but probably not as fast as a full SSD. – Bigbio2002 – 2012-06-13T16:28:37.127