SSD/HDD with RAID 1 setup

erh

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Mar 25, 2009
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I have an Asus P8H67-M Pro/CSM <Rev 3.0> Motherboard with i-2500k processor & dual WD Black 1TB HDDs set up in RAID 1 for protection of my business data. I want to add an SSD to load the OS & programs on & still keep data on the HDD with RAID enabled But here is my dilemma. The MB has only 2 SATA 6.0Gb/s connectors (& 4 SATA 3.0Gb/s connectors). Obviously, I want to put the SSD on one of the 6.0Gb/s connectors, so that only leaves one for a RAID HDD.

The choices seem to be:
A. Leave as is w/ no SSD (RAID1 on 6.0Gb/s connectors)
B. SSD on 6.0 Gb/s & RAID1 with 1 HDD on 6.0Gb/s with the 2nd on 3.0 Gb/s
C. SSD on 6.0 Gb/s & RAID1 with both HDDs on 3.0Gb/s

Obviously I want the best performance I can get, but do not want to compromise data integrity to do so. What is the best solution to upgrade my system?

Thanks in advance for the help,
ERH
 
Solution
Hard drives do not benefit hardly at all from operating on 6gb sata. The mechanical operation is much slower than the 3gb sata transfer rate.
The ssd Does, benefit from 6gb sat in sequential operation.

I would use a 6gb sata for the ssd and use two 3gb sata for the raid array.
I can't help but think that mirroring would be better on equal devices. You will be operating at the lower common spec anyway.

You will really enjoy the SSD, I will no longer build without one.
Hard drives do not benefit hardly at all from operating on 6gb sata. The mechanical operation is much slower than the 3gb sata transfer rate.
The ssd Does, benefit from 6gb sat in sequential operation.

I would use a 6gb sata for the ssd and use two 3gb sata for the raid array.
I can't help but think that mirroring would be better on equal devices. You will be operating at the lower common spec anyway.

You will really enjoy the SSD, I will no longer build without one.
 
Solution