want to delete the datastore and no data recovery should be possible

[andysantosh]

want to delete the datastore but data should not be recoverable after deletion for security reason. overwrite by zeroing is possible somehow ?

[a_p_]

Where is your datastore located (local/shared), and how is it provisioned (thick/thin)?

In case of a thick provisioned datastore/LUN, you may e.g. delete the datastore and map the underlying LUN as a physical RDM to a Linux VM (Live Linux will do). Then use the shred command to fill the complete LUN with random data.

André

[e_espinel]

Hello.
Depending on your storage, you could format the lun or the corresponding logical drive (only if you have experience with these issues).
If the storage is external (e.g. a box), as a security measure you could delete your array and/or configuration.