Adding hard drives to Dell Power edge 2800

Currently have 2 73 gig drives in Raid 1 and going to add 6 more 73 gig drives.  Do I have to added them one at a time or can I add all Six at once?  I did do a complete back up last night and I do not want to re-install Windows server 2003 would like to either expand the mirror or a second mirrored drive the six 73 gig could be one 219 mirrored.  Thank you in andvance for any information.

rlmbgibsonAsked:
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Lee W, MVPTechnology and Business Process AdvisorCommented:
The Dell PERC controllers (which I assume you have there) should allow you to use multiple RAID levels on the same controller.  In which case, I would recommend just adding those drives to the system, configure each as it's own RAID 1 and (if the controller allows) create a RAID 0 out of it - this would be a RAID 10 and give you fast performance with redundancy.  If the controller won't allow you to create a RAID 0 with the 3 RAID 1s then I'd do it in Windows.
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jamietonerCommented:
Adding the drives shouldn't affect the original mirror. The perc controllers that ship with the 2800 only support 2 drives in a Raid 1 so you wont be able to expand the current array unless you want to add drives to the array and you would have to make it a raid 5. The Perc controller supports raid  levels 0,1,5,10 and 50. I agree with leew i would create a raid 10 on the 6 new drives. Also you may want to look at getting the 1x2 backplane in the 5.25" slots so you can run the Raid 1 and raid 10 on separate channels to increase performance.
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