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Unable to extend DATA STORE on VSphere(VMFS_DATASTORE)

Hello All,

I am unable to  extended LUN size of 50gb  on EMC Uni Sphere

Procedure Followed:-

Step 1:-Increased the 50gb space of LUN on EMC Uni Sphere.( Correctly reflected in storage pool)

Step 2:-Error:- After  extending of  50gb space the same is not reflecting under VSphere DATA STORE (VMFS- DATA STORE) under configuration TAB to extend

Kindly replay its urgent

Thank you all  in advance
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vmwarun - Arun
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1.Is it a VMFS3 or VMFS5 datastore?
2. Do you have an option which says "Expandable" as YES when you try to resize the LUN?
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
if you click the properties of the datastore, do you get an Increase option?


two options

1. backup vms, delete datastore, recreate datastore, restore vms
2. manually extend datastore at command line

also see this EE question from today with URL references to partutil't-increase-datastore-size-in-VMWare-ESXi-5-1.html?anchorAnswerId=38721737#a38721737
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we are using VMware ESXi 4.1.0 ,and unable to expand
Please try to post a screenshot (if feasible) of the "Properties" window of the datastore.
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
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