topic Procedure Extending size of the lun part of a SQL/MCS cluster in Data Protection

Procedure Extending size of the lun part of a SQL/MCS cluster

vreddypalli — Thu, 05 Jun 2025 06:55:15 GMT

Hi,

I have a situation where i need to extend the size of the lun part of a SQL cluster.

What is the correct procedure to carry out this task? Do we require any downtime? Can it be done online?

Also, pls share any avaliale document.

Thanks in advance.

Regards,

Vijay

Re: Procedure Extending size of the lun part of a SQL/MCS cluster

bsti — Mon, 09 May 2011 16:26:53 GMT

We have a similar environment (MS Windows 2008 + SQL Server 2008 MSCS). I often have to expand the LUNs to accommodate database growth.

Just grow the volume first to cover the size you want to expand the LUN by. Then, from within SnapDrive on the Windows node that his hosting your SQL Application (and owns the disk you want to expand) expand the disk to the size you want. We run this during full production hours with no downtime whatsoever.

Just be aware once you grow an FC LUN, you can't shrink it.

Check the SnapDrive admin guide for resizing a disk:

https://now.netapp.com/NOW/knowledge/docs/snapdrive/relsnap63/html/software/admin/GUID-85C7AA68-7F48-4A0C-AF10-2CCE01234A16.html

Re: Procedure Extending size of the lun part of a SQL/MCS cluster

vreddypalli — Mon, 09 May 2011 17:49:12 GMT

Hi,

Thank you very much for the response.

Forgot to mention we are using iSCSI luns and no snapdrive.

Regards,

Vijay