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Not with those savvios it wouldnt. Savvios have 10% less read transfer than the VelociRaptors. The do have an edge on access times but it is not worth it at twice the price per GB.
Looking at the nice sawtooth pattern on your HD Tach bechmark I would guess you benched these from a production...
Here is an HD Tach benchmark
And actually 4 drives in Raid 10 are not the same as 2 drives in Raid 0 when you compare read speed. In Raid 10 you are reading from 4 drives not just the 2 that are striped
Savvio read transfer
VelociRaptor Read Transfer
When all factors are considered:
Price per GB
Noise
Heat
Performance
Availability
VelociRaptors clearly lead as a choice for high performance consumer storage.
SAS Controllers (Adaptec 5405) can use SATA or SAS drives. A SAS controller has full bandwidth (in this case 300MB/s) on each (4 in this case) port. A SATA controller only has a total of 300MB/s.
I was referencing the way they are being used not the drive interface - sorry for the confusion...
I am not knocking the drives but if you run a normal benchmark of the full drives you will get an access time of between 7.1ms and 7.6ms. I use VelociRaptors in all my systems and have my benchmarks posted on here of 4 VelociRaptors on an adaptec 5405 SAS controller.
The storage system of the modern desktop/workstation is and has been the bottle neck for quite some time. There will still be a divide going forward as server storage arrays will always need to be optimized for multi-user environments and therefore need a different type of command queuing and...
The Cheetah 15K SAS drives run around 20+% faster than the VelociRaptors and have 4.5ms access times compared to 7ms on the VelociRaptors. SAS drives also tend to have a flatter read/write bandwidth meaning they dont drop as much towards the end of the volume like SATA drives
Even if you could get to the drives you should not attempt any sort of repair on the individual drives of a Raid 0 SW array. But, as you cannot even get into the raid bios this is not an issue. It does sound like one of your drives is gone and the raid bios will not load because of that. You...