Rendering speed problem with SATA RAID

[arcorob]

Hello ,

For some time now I have used an ASUS P4P800 Delux board with VIA Raid on board , 4 x 120 GB dives in a pair of raid 0 striped volumes.

So I captured to one set and rendered to another, no problem.

I recently added 2 300 GB drives to the Intel SATA raid on the same board so I could capture alot more video and then use the VIA raid set as render targets. My render times went up dramatically.

After several attempts at tweaks, I have somewhat determined that the SATA raid is not READING fast enough though the VIA raid is certainly writing fast enough.

Example, I tried to render from Vegas, a 1.5 hour editted video from the timeline using the Intel SATA raid as source and VIA raid as target. It estimated 23 hours to render !!! Ack !!!

So I copied all source from thge Intel rais to one of the VIA raid sets and told vegas here is your source. 1.5 hour video too 3 hours and 50 minutes to render (which is really good time considering i had color correction, effects, slow mo, etc.)

Question (at last you say) what the heck is wrong with the source raid ? The drives are the latest MAXTOR 300GB, you cant view the IO mode like you can IDE because its raid and the latest Intel App accelerator is installed as required on that raid set....

What gives ? Thanks in advance.....

[rallynavvie]

What sort of super-duper processing power are you using that requires that sort of hard disk bandwidth? The more effects you're layering on the more processor you'd need and the slower your read/write times would be because it's processing a frame at a time and applying more filters per frame. I can't even bottleneck a single drive doing a quick-and-dirty encode with two CPUs let alone a resource hog with effects out of something like AE

My point here is that RAID for video encoding is utter bollocks unless you're doing some serious HD streaming or scrubbing back and forth over the same video a lot

[arcorob]

Hello,

I am running a 3.2 P4 overclocked to 3.4, 2 Gig of PC3200 Ram. The thing is with the prior config (6 hard drives, 4 via raid and 2 ide) it was lightning.

Now I added the SATA raid for mass storage, expecting at least the same results from intel raid as I would get from VIA nd somehow there is a bottleneck. Renders were taking longer and long. So in frustration, I copied the source files to the VIA raid set as I used to and rendered to teh other Via raid set. ZZZZZZZZZZ Lightning fast.

Tells me something is not right in ICHR5 land..Shall I test with SIsoft Sandra ? And yes, all drives are defragged ....Norton Speed Disk