VPLex Metro - increasing VNX LUNs

We have a EMX Vplex Metro with two VNX 5800s and two VPLEX (GeoSynchrony 5.3) in different Datacentres.
I have asked to increase the capacity of two VNX LUNs. While I am familiar with increasing LUNs in VNX, I am a bit uncertain with the order and procedure of  using the Storage Volume expansion method.

Can anyone highlight the steps in detail?

Many thanks
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SHBSystems ConsultantCommented:
Please follow the below steps

Locate the VNX lun  > Right Click go to Expand > add the additional space by entering the new LUN size.
Go over to VPLEX and rediscover the VNX array through VPLEX, first, through GUI or CLI.

Additional capacity will be visible in the VPLEX
Expand the volume in VPLEX
Additional space visible on the host after disk rescan. Extend the capacity using diskpart in the host

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