RvR (Raptor vs RAID)

"To maximize performance benefits of RAID 1, independent disk controllers are recommended, one for each disk. Some refer to this practice as splitting or duplexing. When reading, both disks can be accessed independently and requested sectors can be split evenly between the disks."

"requested sectors can be split evenly between the disks"

If it takes 8ms to access the entire file for one drive

4 ms for half the file on one drive, and 4 ms for the other half on the other identical drive, equals 4 ms total for the whole file, cutting access times in half.

that makes sense, and what is the difference between transfer rate and access time?
 
joeswm8 said:
"To maximize performance benefits of RAID 1, independent disk controllers are recommended, one for each disk. Some refer to this practice as splitting or duplexing. When reading, both disks can be accessed independently and requested sectors can be split evenly between the disks."

"requested sectors can be split evenly between the disks"

If it takes 8ms to access the entire file for one drive

4 ms for half the file on one drive, and 4 ms for the other half on the other identical drive, equals 4 ms total for the whole file, cutting access times in half.

that makes sense, and what is the difference between transfer rate and access time?
Click to expand...
What you posted before is trying to cut back on the performance decreases of RAID1, but overall RAID0 is the best if you want more performance.

It takes 8ms to access a bit of data, not a whole file. And the raptors have an access time of 2-3ms I believe.

Transfer rate is the speed at which data is transferred, access time is how long it takes the drive to access a bit of data.
 
Access time is time between you requesting the data and the harddrive actually finds it. Transfer rate is the amount of data the harddrive can transfer.

Omega beat me to it :)

Anyways, if it takes 8ms to access a file on 1 hard drive, it will take 8ms to find it on the other, thus making absolutely no difference.
 
okay

so it takes:

8 ms to access first half of data bit, half time to transfer
8 ms to access other half of data bit, other half to transfer

transfer is done at the same time so it takes half of the usually total time to transfer plus the original access time

^ isnt this just RAID 0 that I am explaining?

and a Raptor has faster access times, but does it have faster transfer times too?
 
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