- Dec 30, 2013
- 18
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- 10,510
Hi guys, I'm currently designing a build for a completely new system which will be used for both gaming and recording/video editing/creative stuff.
Because I'll be doing video work, I want to put some of the 7200 RPM drives in a RAID0 array. I'm curious how SATA bandwidth limits interact with RAID arrays.
Here's some stuff I've learned:
Or is it actually not throttled, because each individual SATA 3.0 Gb/s connection is transferring each individual drive's 150 MB/s, so they still sum up to 450 MB/s together, even though SATA 3.0 Gb/s can't transfer that fast from any one individual connection?
This is one thing I haven't been able to figure out about how RAID works, despite a lot of Googling and reading about it. I appreciate if anyone can clarify it for me. =)
Because I'll be doing video work, I want to put some of the 7200 RPM drives in a RAID0 array. I'm curious how SATA bandwidth limits interact with RAID arrays.
Here's some stuff I've learned:
- ■ A single 7200 RPM will max out (under ideal conditions) around 150 MB/s transfer rate.
■ If you RAID0 that drive with another one, then both of them together will have (on paper) about 300 MB/s transfer rate.
■ SATA 3.0 Gb/s maxes out (on paper) at a transfer of about 380 MB/s.
Or is it actually not throttled, because each individual SATA 3.0 Gb/s connection is transferring each individual drive's 150 MB/s, so they still sum up to 450 MB/s together, even though SATA 3.0 Gb/s can't transfer that fast from any one individual connection?
This is one thing I haven't been able to figure out about how RAID works, despite a lot of Googling and reading about it. I appreciate if anyone can clarify it for me. =)
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