Strange RAID5 HD Tach Reading

[Captain Fizz]

Hello folks,

I have 3 x Seagate Barracuda 7200.9 250GB ST3250824AS SATA-II 8MB Cache.

I put them in a RAID5 array on the nVidia controller on my Asus A8N32-SLi.

But the results have large areas of slow speeds...

Any ideas?

After reading more reviews...
Am I worth going for RAID5 on the nVidia's built in controller?
(Write speeds seem alarmingly slow)

 

[Captain Fizz]

I will check them when I get home.

One was a new drive, the other two I had copied data off of just before creating the array.
(the new drive showed up no problem in Disk Mgmt)

EDIT - Also, all the drives are definitely SATAII 300MB/s.


EDIT2 - Will break the array again tonight.
Test each drive individually again.
They WERE all working. ??

If I manage to get the 3 working as normal, then will be adding a 4th.
Not too worried about write speed, data retrieval is what this will be getting used for.

EDIT3 - - Ordered 4th drive.
Will break the array tonight and test each drive individually.
And the 4th when it arrives.
Will try again then.

 

[Captain Fizz]

Right - An update for those that posted here...

Tried several other benching proggies, and the all important "Actually using it" test.

Seems like it is actually over 100 meg all the time.

\o/

Write speeds are poor, dire in fact!
But I have another drive on it's way to work with files etc.

The read speed of the array is perfect though - And for it's job (file server, mainly other people accessing it so read speeds more important) it's spot on.

So keeping the array as it is.
Cheers for th ideas though.