Windows not seeing 4 X 2TB RAID 10 array

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diehardfan

n00b
Joined
Oct 14, 2010
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I just created a new virtual disk with my Perc 6/i with 4 X 2TB Hitachi Drives in RAID 10, ~4TB usable space. But windows will not see the new virtual drive, Windows XP 32 bit.

Is there a limitation on the max size Windows XP 32 bit can see? Can I do anything to make Windows see my new virtual disk?
Actually, Disk Management does not even detect it, so cannot even convert to GPT volume.

Btw, I am not using this array as boot just to store backup images and important files.
But HD Tune sees it and was able to do some benchmarks, but only detects 2199GB which I read other people had the same problem as might be probram bug, not too worried about what HD Tune is seeing for now.

Thanks
 
by "widows does see it", do you mean it doesnt show up in 'my computer'? did you assign it a drive letter or partition or format it in any way yet?
 
I don't know how it fits into RAID arrays, but there is a limit at 2.19TB on 32bit OSs. I know that is why if you look at the new WD 3TB hard drives they say you need Vista 64bit, windows 7 64bit or OSX to use it. 2.199 TB is 2^32 512 byte sectors.
 
ghost6303 said:
by "widows does see it", do you mean it doesnt show up in 'my computer'? did you assign it a drive letter or partition or format it in any way yet?
Click to expand...

I was going to do that but Disk Management under windows does not even detect it, so cannot assign or format the drive


TheGreySpectre said:
I don't know how it fits into RAID arrays, but there is a limit at 2.19TB on 32bit OSs. I know that is why if you look at the new WD 3TB hard drives they say you need Vista 64bit, windows 7 64bit or OSX to use it. 2.199 TB is 2^32 512 byte sectors.
Click to expand...

Yeah I was reading up on that, but is this a NTFS issue or 32bit/64bit?
 
Limahl said:
Supposedly the drivers here work fine under XP32, but I've not tested them.

http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=13854&libid=46&releaseid=R211426&vercnt=3&formatcnt=0&SystemID=PREC_T7400&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1&checkFormat=true
Click to expand...

Well, I have the Perc 6/i drivers already installed. Windows sees the Perc 6/i just fine, I used Dell's management software to create the raid array under Windows but its after creating the array Windows does not detect the new array but Dell's management software can detect it and everything looks fine in Dell's management software. I can even run benchmarks on it with HDTune.
 
The issue I was talking about is a 32bit/64bit issue. 32bit operating systems do not have enough addresses for more space then that.
 
You will need to break the volume into multiple virtual disks to use in 32 Bit XP.
 
diehardfan said:
Could elaborate on that, as I am getting conflicting answers.
Click to expand...
Since you are running Windows XP, you will need to change the block size on the RAID card to be able to use all the space. 1k blocks would be the minimum for 4TB, but you might as well just set it to 4k (default is 512b). Had you been running Windows Server, you could use GPT and then you wouldn't have to do anything else. Your array should still show up regardless however.
 
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