Detaching Datastore From ESXi Host

                This post describes how to detach datastore/LUN from ESXi host


 

Step 1:- Make a note of UID/Device ID of datastore to be removed

Step 2:- Select the ESXi host from Datastore needs to be removed

Step 3: Go to Configuration Tab on the right side Pane

Step 4: Select the storage Tab

Step 5: Select the Datastore to be removed
Note:-1. Ensure that Datastore getting removed is empty and no VMs/ Vmdk’s/Swap files residing on it.
          2. Sometimes you would not find the VMs on datastore but if you browse the datastore you may see Orphan VMdks, Swap files/VMX files etc.

Step 6: Select the datastore and do Right click.
Note:- Before Unmounting check that Storage I/O is disabled on that datastore.

Step 7:- Click on Unmount. You will get the following screen and click on ok.

Step 8: Go to Devices Tab (Identify the Datastore using the LUN ID noted in Step 1)

Step 9: Right Click on the selected LUN/Device and click Detach

Step 10: Ensure that everything is green, click on ok to proceed