Why do I need more than 1 disk on a NLE system?

This question is often asked and a lot of people still think they can get away with a single disk or maybe 2 disks for a video editing system.

 

It would be relatively easy to tell you that a SATA disk is half duplex, so traffic can go only one way at a time, either reading or writing, and the other traffic has to wait until the first data streams have completed, before the next direction gets full attention, but that is rather technical and may not appeal to many, so let me put it to you in another way.

 

Whatever you do during editng, there comes a moment when you have to export your final result, be that for the web, to BD or DVD, it does not matter, the only thing relevant is that you need to EXPORT your final results and that is where the disk(s) come into play.

 

Bill Gehrke and I have been testing this extensively and let me make my final argument here.

 

We have a very simple SD DV AVI timeline of three hours duration, no effects, no transitions, single track only. We exported that to SD DV AVI and wrote that file to disk. Simple, no calculations required, no effects, no transitions, no scaling, no frame blending, nothing to complicate matters further. The intent was only to show the impact of the disk setup on export times. It may not be relevant to your case, but it does show the impact of a good disk setup and as such translates to your EXPORT times equally.

 

We tested with the following disk configurations:

 

  • Harm i7-3930K, (OC) 4.7, 64 GB, GTX 680, 3 x 7 Raid3 striped to Raid30
  • BillG i7-980X, (OC) 4.4, 24 GB, GTX 680, 1 x 8 Raid0 15K SCSI disks
  • BillG i7-2600K, stock, 32 GB, GTX 660, single SSD, OCZ Vertex4
  • BillG i7-2600K, stock, 32 GB, GTX 660, single HDD, Seagate 7200.12

 

This is what we found after many test runs:

 

Disk_io_test.png

This clearly shows the impact of disk setup on export times.

 

I rest my case.

via Adobe Community : Popular Discussions – Adobe Premiere Forums http://forums.adobe.com/thread/1144620