2TB disk slow write speed only with Opus

Help & Support
1

Just got the Western Digital 2TB Caviar Green Power Hard Drive. But the writing speed only reaches 3MB/s. But full speed when using explorer. Any suggestions? I'm using V. 9.1.3.0.3449.x64 on Win7 :open_mouth:

2

I'm using Win7 Build 7000.

3

You could try adjusting the copy buffer size in Opus. I'd also recommend seeing if there are newer drivers for your motherboard or IDE/SATA controller.

Hasn't Win 7 build 7000 expired now?

4

Yup. Had to turn back the time. Haha. But maybe its time for an update. I'll try the copy buffer size first. Thanks

5

I see it's at 64kB. How do you come up to this value or could there be some optimum value?

6

The optimum value depends on your hardware/drivers. There isn't a single optimum value, you just have to experiment.

(Or avoid hardware/drivers that don't buffer writes properly, but that's easier said than done. :slight_smile: )

7

I just tested 512k through 2k and it seems the best average speed is achieved by setting it down to 4k. (By copying different files to avoid buffering). Unbeliveable.

8

Little update! When copying over the network, 4k proved to be terrible - halving the copying speed. So, under the normal NW environment it seems that 64k is just optimal value. :]

9

No problem with Win 7 Build 7100. Solved!