topic Re: Failed to expand VMFS Datastore - cannot change host configuration in VMware vSphere™ Discussions

Failed to expand VMFS Datastore - cannot change host configuration

jacksonp2008 — Thu, 09 Nov 2017 22:28:23 GMT

Running a nested esx environment:

Initial (nested) ESX disk was 100G, I increased to 150G on the outer vCenter and looks good.

In the nested vCenter:

still shows 100G

Connect to the ESX directly, from webUI -> increase datastore capacity->expand an existing VMFS datastore extent

(it shows 150G for capacity)

Selected the vmfs partition and the after picture looks perfect.

and when I run it, I get the error: Failed to expand VMFS Datastore - cannot change host configuration

Any ideas?

daphnissov — Thu, 09 Nov 2017 22:39:13 GMT

What version of ESXi and what version of the host client?

jacksonp2008 — Thu, 09 Nov 2017 23:35:00 GMT

Everything is 6.5, using webUI

daphnissov — Thu, 09 Nov 2017 23:38:41 GMT

What version of the host client though?

jacksonp2008 — Fri, 10 Nov 2017 01:05:20 GMT

Not sure what you are asking. the host client is embedded, so everything is 6.5; ESX,vCenter

daphnissov — Fri, 10 Nov 2017 01:24:33 GMT

When you login to the host client (https://<FQDN>/ui) if you go to Help -> About in the upper-right, what version does it report?

jacksonp2008 — Mon, 13 Nov 2017 19:44:19 GMT

Here is what I see from the webUI

daphnissov — Mon, 13 Nov 2017 20:30:25 GMT

Help -> About. What version?

a_p_ — Mon, 13 Nov 2017 20:32:00 GMT

Expanding the VMFS dataastore on the installation disk/LUN needs to be done from the command line.

André

jacksonp2008 — Wed, 15 Nov 2017 01:30:12 GMT

Thank-you Andre, this worked perfectly!!

emailsling — Wed, 17 Oct 2018 13:25:51 GMT

Dead link. Is this also true if you want to "Increase Storage Capacity" by attaching another LUN?