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Auto Expand disk

Hi All,

I was informed that in Windows server 2008 R2 you could create a disk partition with the minimal disk space needed.  When the disk reaches its max limit it will auto expand using the unallocated space disk space.

Is this true? If so, could someone explain how to set up the disk to auto expand.

Thanks in adavance.
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Reyesrj
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Reyesrj
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2 Solutions
 
Nagendra Pratap SinghCommented:
That is not true but expanding the partition is simple.

Perhaps you are thinking about the thin provisioning feature of VMware and related features in other products.

BTW what is the use of leaving unallocated space after the partition, that does not get used so it is better to make a large partition at the start itself.
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noxchoCommented:
Agree with the comment above. Your description refers to Vmware configuration and virtual container (vmdk).
If you are speaking about physical configuration then you need to extend the drive manually via Windows Disk Management and only if you have adjacent to partition free unallocated space block.
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ReyesrjAuthor Commented:
I believe that we are running a vm server.  The server was created within a server.  I need to double check.  The reason why I left some unallocated space is in case it could auto expand.  I created several drives and I was hoping that if the drive needs more space it will pull from the unallocated disk space.  I’m not sure if that’s how it works.  I am familiar with expanding and shrinking the disk space manually.  Please explain if I’m on the right train of thought.

Thanks in advance
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noxchoCommented:
If you create a virtual machine on physical machine and leave some unallocated space on physical machine in hope that vmdk or vhd files (drives of virtual machine) will take that space automatically when needed, then you are wrong. As the virtual drives are located on allocated space which is actually partition on physical machine drive. So the vmdk will get bigger but all the time it will take space of your physical server partitions. Thus the uallocated space should be assigned to partition where the vmdk or vhd files are located.
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Nagendra Pratap SinghCommented:
That auto expand is possible with some tools.

AFAIR, it was an E drive running on netapp. Netapp had installed some tools on this server and when we extended the drive, we used some GUI tool. That tool expanded the SAN side object and also extended E partition.
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ReyesrjAuthor Commented:
All, thank you for your time.<br />I am still a little confused but, now I have something to read up on.  Noxcho, thank you for better explaining.<br /><br />Thanks again
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Nagendra Pratap SinghCommented:
BTW the software I mentioned is called SnapDrive.
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ReyesrjAuthor Commented:
Thank you npsingh123!
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