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Extend C:\ partition in Server std. 2012

Posted on 2014-01-03
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I just finished reading this post; http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2012/Q_28159047.html and although it is very similar to my situation mine is slightly different. I have just received  a Dell T320 with 4 1TB drives configured in a RAID 5. OS was pre-installed by Dell. They used BIOS instead of UEFI to install Server standard 2012 so 2.2 TB limit applies. They configured 2 discs; 0 is 1.8 TB, 1 is 950GB. disc 0 was 3 volumes; system 3 GB, C:\ 40 GB and E:\ balance of disc. Just to be clear no VMs are installed yet.
C:\ had 5 GB free so I deleted E:\ volume to create free space on disc 0. I then attempted to expand C:\ but failed, error message is Extend Failed. (gosh that was informative). I checked in Administrative Tools >> Computer Management >> Disc Management, disc 0 indicates unallocated space.
Dell support claimed that C:\ is locked and can't be extended. I tried G-Parted but it didn't see the volumes. Any other ideas before I re-install the OS?
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Question by:rettif9
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5 Comments
 
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Author Comment

by:rettif9
ID: 39755512
To be clear in Disc management the part of disc 0 that was E:\ is now unallocated space, the other two volumes show up normally.
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Expert Comment

by:Seth Simmons
ID: 39755544
any chance you can show a screenshot of disk management?
some things don't quite sound right here and maybe a visual aid would help
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by:rettif9
ID: 39755557
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Accepted Solution

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Seth Simmons earned 500 total points
ID: 39755589
ahh...you can't extend C because that free space resides in an extended partition
in an MBR disk, there is a limit to 4 primary partitions.  you can either have all 4 as regular primary partitions or 3 regular primary and one extended (logical drives can be created inside of it) which is what you have here

if you delete the extended partition (the one in green), then you should be able to extend C the remaining 1.8tb - if that's what you're looking to do.  otherwise, you can create additional drive(s) in that free space of the extended partition
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by:rettif9
ID: 39755595
I didn't see the dark green border surrounding the light green. You are absolutely right. I should have remembered that unallocated space has a black header though. It's an OS I haven't used much and I let that trip me up. Good call, the Extend worked. I made C:\ 200 GB then recreated E:\ using the remaining 1.6 TB.
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