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Compaq Proliant ML370 Hard Drive failure

Hello,
I bought a Compaq Proliant ML370 off of eBay for $100. I added two 1Ghz processors to it, it has 1Gb of ram, and three Compaq 18.2GB Ultra2 SCSI hard drives. A couple of weeks ago I installed Windows 2003 Server and I've let it run the whole time. It looks like one of the hard drives failed. The system is reporting that the drive in slot 0 is bad.

The three drives are setup in a hardware raid 5. When I replace the drive, do I have to find a drive that is exactly the same specs as the others or can I buy something else? I am not too familiar with RAID except for the basic theory behind it. So, please let me know what my options are with replacing this one drive. It will be difficult in finding one (if not more)drives exactly like this one, and expensive to replace all three with larger drives.

Thanks,
John
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jhieb
Asked:
jhieb
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1 Solution
 
mandude0Commented:
Yes, on a RAID 5, all hard drives must be the same model. It might be difficult to find one to match the drive you have but I can tell you that you will end up paying more for the replacement drive than you paid for the whole server.
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SteveG00000Commented:
Yes. same spec, speed and size.
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FriarTukCommented:
they don't have to be identical, however it helps that they are similar in size, speed, & cache

you can add a drive that is larger, although you'll only be able to use a size equal to the other drives in the array (18.2gb) the rest is wasted

best bet, if you're thinking to upgrade, back up everything, add 4 new larger drives (one set as a failover), recreate the array & restore the data

remember once two drives fail in a raid 5 array you lose everything!
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jhiebAuthor Commented:
OK, I am confused and am not sure what it is. Doe they have to be the same spec, speed, and size, or is it as FriarTuk said?

I found an 18.2GB Six Pack on eBay for $100 that I think I am going to buy. I am just trying to figure out whether or not they are Ultra2 SCSI which mine are. If I do get them I will probably do what you said. I'll create two arrays and have a failover set. I am not sure how to do this but I'm sure I'll figure it out with help from experts exchange :-)
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FriarTukCommented:
that is 1 drive (the 4th one) will be the failover, so if one drive fails, it will rebuild using the failover

as far as setting it up I don't know, but people in the networking section should be able to help further.
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rindiCommented:
It is as Friar has said.

These servers usually have special cases in which the drives come, so you should really buy compaq drives which are listed to fit your server, or you won't be able to connect them to the system.
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jhiebAuthor Commented:

OK, I am looking at these. They appear to be perfect for my system except I hope the speed is higher than 10K.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=8812840337&ssPageName=ADME:B:DS:US:28
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rindiCommented:
It says they are 10k.
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