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Old 05-09-2015, 03:52 PM   #1
asilentmurmur
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Installing CentOS 6.5 to multiple VHDX's on Hyper-V 2012. Is it possible?


Hello all

I am trying to create a Hyper-V 2012 Virtual machine running Cent0S 6.5 for a client. Currently I have the VM set up with two SCSI disks one of size 25GB and one of size 60 GB.. The 25 GB disk will be the OS disk and the 60 GB disk will be the data disk which holds the data from the database. I want to create an LVM on the 60 GB disk and increase it over time as the database gets bigger. As soon as the disk gets to about 1 TB, I will create a third disk, and extend the Volume Group to include that third disk as well. The third disk will eventually grow past 1TB as well (but not 2TB)

Overall my question is, would this type of set up be possibly using a MBR Bios set up? or would I HAVE To use GPT?

all help is greatly appreciated!
 
Old 05-09-2015, 03:58 PM   #2
jpollard
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For anything over 2 TB I believe the answer is yes, you have to use GPT.
 
Old 05-09-2015, 04:19 PM   #3
michaelk
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Nope, since a single disk or PE is not over 2TB. As a reference the limits for a single logical volume are 16TB for a 32bit and 8EB for 64Bit machine and the VHDX limit is 64TB.

Last edited by michaelk; 05-09-2015 at 04:28 PM.
 
Old 05-09-2015, 08:25 PM   #4
asilentmurmur
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Quote:
Originally Posted by michaelk View Post
Nope, since a single disk or PE is not over 2TB. As a reference the limits for a single logical volume are 16TB for a 32bit and 8EB for 64Bit machine and the VHDX limit is 64TB.
Thank you for your response! I was under the impression that no matter how many disks or VHDX/VHDs a system has, if the total amount of all of the disks combined exceeds 2TB then a GPT partitioning scheme is required. If I understand you correctly, Michael, then the only time a GPT would be needed is if a single disk is over 2TB in size, not the entire total amount of storage spanning all of the disks.. Am I correct?


Thanks!!
 
Old 05-09-2015, 08:59 PM   #5
michaelk
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Yes
 
Old 05-10-2015, 03:07 PM   #6
John VV
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Warning:
DO NOT !!! use CentOS 6.5
it is UNSUPPORTED!!!!!!!!
there will NEVER be any updates to 6.5 ever
-- NEVER ---

install the Current 6.6 or the really current CentOS 7
 
  


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