RAID Question
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If my motherboard supports SATA 3 GB's, and I set up a pair of drives in a RAID 0 (striping) configuration, does that make the effective data transfer speed faster than SATA 3GB, or is it always limited to 3GB's?
The difficult we do right away... ...the impossible takes slightly longer.
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If my motherboard supports SATA 3 GB's, and I set up a pair of drives in a RAID 0 (striping) configuration, does that make the effective data transfer speed faster than SATA 3GB, or is it always limited to 3GB's?
The difficult we do right away... ...the impossible takes slightly longer.
I would rephrase the question - if I have a SATA disk capable of sending data at the rate of 10 GB per second what would be the effective data rate on my 3 GB/s motherboard? The overall data rate of a transmission path is controlled / limited by the slowest device in the path. You have asked an interesting question, I hope you realize that one of the advantages of striping the disks is to increase the storage capacity. Vaclav
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If my motherboard supports SATA 3 GB's, and I set up a pair of drives in a RAID 0 (striping) configuration, does that make the effective data transfer speed faster than SATA 3GB, or is it always limited to 3GB's?
The difficult we do right away... ...the impossible takes slightly longer.
Depends on the RAID controller. If your RAID controller hooks up to one 3Gb port on the MB, you will be limited to 3Gb. If it is a PCIE card, depending on the number of PCIE lanes it uses, it might go over 3Gb. So be carefull of RAID cards that use only 1 lane. If you use software RAID (striping over volumes using Windows disk manager) you will get >3Gb. All of this is obviously based on the assumption that the drive runs a flat rate of 3Gb. The bottleneck is still the drive, not the interface (unless you can afford those already RAID configured SSDs) Hope that answers your question.
