Adding a third Hard Drive

Microsoft Windows server 2003
February 15, 2010 at 19:29:37
Specs: Windows Server 2003
Hey Guys,

We have a poweredge 1750 (perc 4di) we've been running with server 2003 for the past few weeks. Its currently on a RAID 1 on two drives, and we'd like to add a third larger drive to serve as the file server storage.

So we simply installed the Drive #3 as Raid 0, BIOS recognizes it okay, and windows loads for a split second before showing a 'Hardware initialization failure' error. Any ideas to get it recognized? Thanks!


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#1
February 16, 2010 at 00:29:06
You shouldn't load it as raid 0. Read up on raid configs here:

http://en.wikipedia.org/wiki/RAID


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#2
February 16, 2010 at 09:32:43
Perc 4di can handle a one disk Raid 0, question is, can server 2003 handle raid 1 and a one disk raid 0?

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#3
February 16, 2010 at 14:26:35
Thanks guys.

We got it working through Dell OpenManage Server Administrator. Instead of setting the drive to Raid 0 before windows loads, we used openmanage to configure and initialize the drive, as raid 0, and it showed up immediately.


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Related Solutions

#4
February 16, 2010 at 16:05:43
Good luck with your data. Seriously consider mirroring your data.

Funny how dell considers raid0 with one drive. They don't even know their raid levels.

http://www.acnc.com/04_01_00.html
note the "RAID Level 0 requires a minimum of 2 drives to implement"

I will leave you with "GOT HOT SPARE"?


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#5
February 16, 2010 at 16:36:15
I know right? Raid 0 has always been 2+ drives, not sure when dell decided to change the rules. Luckily we have two drives running on raid 1 already, we just needed to add a third for file storage.

For those running into similar issues with a 1750, our current setup is a mirror + a standalone drive, and works great, just remember to use Dell Openmanage administrator.


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#6
February 16, 2010 at 20:08:46
Just so you are clear, you are NOT running raid 0+1

A number of folks on the web are confused about raid 0+1 and raid 10.

In your circumstance you are running neither. You are running a raid1 array and a standalone drive with no stripping and no fault tolerance.

The difference between raid 0+1 and 10 is easy to understand

0+1 is [going to the last number first] a mirror of a stripe
10 is a stripe of a mirror

The difference is raid 10 will still be operational if TWO drives fail [one in each mirror set]
This is NOT the case with raid 0+1

Both raid arrays give you a performance kick over raid5 or even over raid1.

I put database servers on Raid10. It has performed excellently and saved my data on many occasions when drives have failed.

know your raid levels before you say 1+0 is a mirror array and a standalone drive. .


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#7
February 16, 2010 at 22:32:05
I stand corrected, thanks wanderer.

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#8
February 17, 2010 at 17:53:46
That was gracious of you and shows a lot of class. Thanks for posting back.

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