Upgrading disk drives in a Dell PowerEdge 2800 server

Hi,

I need to upgrade disks in a Dell PowerEdge 2800 server.  The server is currently a RAID1 (hardware RAID) of 2 X 36GB SATA Drives.  I need to replace the disks with 2 x 146GB SATA disks.  I need to do this with out re-installing the OS and a minimum possible down time as it is a clitical sort of server.  Dell's website was not very helpful.  My question is: can I replace each of the drives with a bigger drive, recreate the array each time - end up with two bigger drives only half used - and then expand the logical disk to cover all the new disk space?  I can do that in hp servers.  But don't know in Dell.  Any help is appriciated.  Sorry to go on!
sbrihanAsked:
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sbrihanAuthor Commented:
Thank you Quetzal,

I used the method described in these approaches on hp servers.  Those give you the option to "extend a logical drive" which can be used to ADD A NEW LOGICAL DRIVE or EXPANDING THE RAID ARRAY depending the type of controller in use.  If I add a logical drive, then I add the new drive as a new disk.  If I expand the RAID array, then I expand the partition using some partition utilities  and have one large volume.  Dell seem to have a different terminology for handling RAID arrays and drives in them.  I could not find the exact options/commands from the system management utility.  But thank you, I will have to just start it and follow the prompts with trial and error.  I will make a good backup any way.

Thanks.
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drewha1969Commented:
Do you want to keep the old drives in the array or replace them?  You could use imaging software to replace the old drives.

Add the new drives and create a separate array.  
Image the old array to the new array.
Remove the old drives or keep them as extra storage.

You can use a product like Acronis True Image (make sure it has the drivers for the RAID array or use a free one like ImageXML.

I have imaged a Dell server with hardware raid using the Ultimate Boot CD 4 Win and the ImageXML utility.
http://www.ubcd4win.com/

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sbrihanAuthor Commented:
My apologies for delayed response!

Thank you drewha1969.  I do not need the old drives and the plan is to replace them with new bigger drives.  I will use imaging software and checkout the Ultimate Boot CD 4 Win and the ImageXML utility you mentioned.  Thanks.
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sbrihanAuthor Commented:
Thanks you for the solutions provided.  I thought they are all viable, but before I finish going through them, the customer changed their mind and wanted to keep original drives as well.  So i ended up using the new drives as additional drives.
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