How to extend existing Disk on Windows Server 2012 R2 cluster

This is no any incident or problem, but I wanted to know, how to extend the shared disk on Windows server 2012 R2 cluster. Does it needs downtime or is it straight forward like any other disk extension?

Best Regards,
Gurucharan Nayak H
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Adam BrownSr Solutions ArchitectCommented:
No downtime needed. Just add the space to the CSV's LUN in the SAN's controls, then extend it from Storage management while logged in to RDP session on the cluster's VIP

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Hello ThereSystem AdministratorCommented:
You can perform online extension of a cluster data volume in Windows Server 2008 or in Windows Server 2008 R2 without stopping the cluster application(s). (This also applies to Windows Server 2012)

To perform an online extension of the disk partition, follow these steps:

Add the additional physical drives and extend the additional disk or disks as free space by using the instructions that are included with the hardware vendor documentation.
Open the Disk Management snap-in, verify that the new free space is added to the end of the proper drive.
Right-click the existing partition, and then click Properties. On the General tab, type a unique name for the partition. This name will be used to identify the partition that you want to extend.

Note If you encounter any problem with the previous steps when you are extending the drive, contact your hardware vendor for assistance.
Extend the partition by using one of the following methods:
Use the Disk Management snap-in in Windows Server 2008 R2
To extend the partition by using the Disk Management snap-in, follow these steps:

In Disk Management, right-click the data volume that you want to extend.
Click Extend Volume…. .
Follow the instructions in the Extend Volume Wizard.
Note Windows Vista and Windows Server 2008 does not allow Disk Management snap-in to Extend volume and user should use diskpart to extend volume instead.

Use the Diskpart.exe utility
To extend the partition by using the Diskpart.exe utility, follow these steps:

 .                     Open a command prompt, type diskpart, and then press ENTER.

At the DISKPART prompt, type list volume , and then press ENTER to display the existing volumes on the computer.
At the DISKPART prompt, type select volume <volume number>, and then press ENTER. Here volume number is the number of the volume that you want to extend. The volume has the unique name that you created in step 3. The volume is listed in the output of the list volume command.
At the DISKPART prompt, type extend, and then press ENTER to extend the partition into all of the available disk space to the end of the drive. Or, type extend size=<size> to extends the selected volume by size megabytes (MB).
Type exit, and then press ENTER to exit the command prompt.

Seth SimmonsSr. Systems AdministratorCommented:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I have recommended this question be closed as follows:

Accept: Adam Brown (https:#a42437014)

If you feel this question should be closed differently, post an objection and the moderators will review all objections and close it as they feel fit. If no one objects, this question will be closed automatically the way described above.

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