OT: Raptor Issues

[Brian B 74]

Is anyone using a WD 74gb Raptor on an Asus P5K-E WiFi-AP Mobo? I was noticing a lack of performance today and after running HD Tach to benchmark the drive, it is running at 8.7ms seek time, 134.6MB/s burst rate, and 76.9MB/s average transfer rate.

 

Does this sound correct?

 

I know in the raptor literature it says average time of 4.6ms.

 

Another thing I noticed is that the drive is running in UDMA Mode 5. How can I change that to UDMA Mode 6? Could this be my problem?

 

Thanks for the help.

[Guest]

quote:

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I know in the raptor literature it says average time of 4.6ms.

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How much data is on the drive?

 

Any hard drive once you reach 50% capacity, you WILL start slowing down.

 

Do you defrag the drive at all?

[Brian B 74]

On a 74gb drive, I have 40gb free. I also defrag everynight @ 3am. I jumpered pins 5 and 6 on the drive, but that didn't help.

[Craig Madsen from CM3D]

I checked my Raptor WD74 drive using HDTach:

 

Random access: 8.1ms

CPU Utilization: 2% (+/-2%)

Average Speed: 75.7 MB/s

Burst Speed: 135.5 MB/s

 

 

10,000 rpm = 166.67 revs/second = .006 seconds / revolution.

 

On the spec sheet random access time is:

 

Seek Times

Read Seek Time 4.6 ms

Write Seek Time 5.2 ms (average)

Track-To-Track Seek Time 0.4 ms (average)

Full Stroke Seek 10.2 ms (average)

 

So, it depends on HOW it is being tested - full stroke vs nearby tracks.

 

 

The "long" test gives me:

 

Burst of 203.4 MB/s

Random access of 13.1 ms

 

Again, it depends on the test. NONE of my drives meet the 'advertised spec'. They do the job, though.

[Reece L Gibson]

Has it always ran slow?

Or just lately?

I am running the same Drive, been opening up 90 meg files like they are nothing. Since I went to such a animal, I do not even realize how big the files are until I go to back them up.

Real happy with it's performance.

[Brian B 74]

Computer itself has been a bit quirky lately. Don't know if the drive has been running slow.

 

On another note, I did some Google research last night and apparently the numbers I am getting are correct. So my problem isn't with my drive. Must be somewhere else.

 

Thanks for all the help.