Raid Driver on HP Compaq dc7900

After several electricity cuts, Our HP Compaq which acts as a WIN2K3 Server with 2 Maxtor HDD (Each is 1TB) mirrored with RAID 0 has failed to detect one of these two hard disk drives, I replaced the damaged HDD with new one (Same size & same brand) however the two HDD are the same type (MAXTOR DIMAONDMAX 22 - Generation 1) Model is STM31000340AS.

The new purchased HDD is different ( MAXTOR DIAMONDMAX 23 - GENERATION 2 Model STM31000528AS ), I installed this new HDD & Raid manager detected it but couldn't rebuild the system when using Ctrl + I Method it says " Not enough space is available ".

Any idea ? Should I get the same model of the HDD or bigger in size?
LVL 24
Mohammed HamadaSenior IT ConsultantAsked:
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conradjonesConnect With a Mentor Commented:
buy another HD the same as the new one.

ghost it over from the old one to one of the new ones, then put both new ones in and rebuild mirror.
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B HConnect With a Mentor Commented:
you would be best off with one that is identical to the working drive
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Mohammed HamadaSenior IT ConsultantAuthor Commented:
Unfortunately the problem was none of what you guys have mentioned, I've decided to buy 3 Samsung HDDs each is (1TB) to ghost from the already running HDD (Maxtor).

When installed the new Samsung on port 2 and checked Raid manager the system starts rebuilding the Maxtor drive to the Samsung and it all worked.

The next day I called the company to return the Maxtor HD to get my money back and to tell them it was not working, They told me it's working and we've installed windows on it.

So it wouldn't work unless Fdisk command is applied on it.

Thanks for your comments.
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B HCommented:
"They told me it's working and we've installed windows on it.
So it wouldn't work unless Fdisk command is applied on it."

it's extremely unlikely that a vendor sent you a hard drive with windows already installed on it.  that's in violation of several license agreements, no vendor would have done that.  i think they're just lying to you so they don't have to take it back and refund your money.

the difference between your live hard drive, and the one you got to replace it (not enough space) is because the geometry between the drives is too different.  weather or not the vendor shipped it with windows on it wouldn't make a difference because rebuilding the mirror would erase the new drive - fdisk or not, it would erase it on the fly.

your original question was answered and the answers were correct.  in the end, you got hard drives which are identical to themselves rather than a different model with less space on the physical metal.

my comment and that of conradjones were correct methods, either get the same drive OR image it onto a new set of bigger drives (what you did)

in keeping with the spirit of experts-exchange, i think you should reconsider closing the question by accepting your own comment and awarding no points.
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Mohammed HamadaSenior IT ConsultantAuthor Commented:
I don't mind awarding points, I'm not paying them from my pocket!! I just think it's more useful for people who might have the same problem to find the right answer in the right place rather than some suggestions that wouldn't really work directly.

Though never mind, Thanks for your help.
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Mohammed HamadaSenior IT ConsultantAuthor Commented:
Thanks
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