EMC XtremIO – VMware VMFS LUN Expansion

In this post I will detail how to increase an XtremIO volume and extend the associated VMware VMFS volume.

As can be seen form the XtremIO management interface the existing size of this XtremIO volume is 1TB:
XtremIO_EXP1

By right clicking the volume you are presented with an option to “Modify Volume”:
XtremIO_EXP4

The existing Xtremio and VMFS volume size is 1TB, this example will demonstrate increasing the volume size to 2TB:
XtremIO_EXP5

Note: you may also use the cli option for increasing an XtremIO LUN:
modify-volume vol-id="Data_VOLUME1" vol-size="2000G"

Login to Vcenter chose a host where the XtremIO volume is presented, under ‘Hardware’ navigate to ‘Storage’ and click on the ‘Configuration’ tab, from here chose the option to ‘Rescan All’ this will scan the host bus for newly assigned storage:
XtremIO_EXP3
XtremIO_EXP6

Once the rescan completes enter the volume properties, from here the additional 1TB of space will be visible under ‘Extents’, chose the option to ‘Increase’:
XtremIO_EXP7

Select the XtremIO volume and hit next:
XtremIO_EXP8

The next window will provide the breakdown of the existing volume and the available free space by which we can increase the volume:
XtremIO_EXP9

Chose ‘Maximum available size’ which is 1TB in this example:
XtremIO_EXP10

Click ‘Finish’:
XtremIO_EXP11

The ‘Data_Volume1’ VMFS datastore has been successfully increased by 1TB of XtremIO storage:
XtremIO_EXP12

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