Bug 1574924

Description of problem:
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RHHI installation was invoked from the cockpit UI. While choosing configuration of gluster volumes, after the gdeploy configuration file generation, the wizard was closed, without completing gluster volume configuration. 

While trying setup 'Hyperconverged' setup from cockpit UI, there is information pop-up, saying that 'Gluster configuration found', but there are no volumes created though. While selecting 'use existing configuration', it takes to the node zero deployment, though there are no volumes exist in actual.

Version-Release number of selected component (if applicable):
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cockpit-ovirt-0.11.23

How reproducible:
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Always

Steps to Reproduce:
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1. Select hyperconverged deployment, proceed with wizard and reach the final tab, where the gdeploy configuration file is generated
2. Do **not** complete the installtion but close the wizard
3. Re-attempt installation, on clicking on 'hyperconverged', select 'use existing configuration'

Actual results:
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Though there are no volumes available with the host, the 'Use Existing Cofiguration' proceeds with node zero ( HE ) deployment, without validating the availability of volume

Expected results:
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As there no volumes created and in started state, using the existing gluster configuration should validate the actual volume in question exists and in started state