vFRM, add capacity fails with Device or Resource busy

[Roel03]

Hi All,

First posting here. I am trying to configure a vFlash resource through the webclient. The process of adding capacity ends with a green checkmark next to the Task, But selecting the task shows:

Task Details:
	Name: configureVFlashResourceEx Startzeit: Jan 5, 2015 10:49:57 AM Zeit der Fertigstellung: Jan 5, 2015 10:50:07 AM Zustand: success
Error Stack:
	Operation failed, diagnostics report: Unable to create Filesystem, please see VMkernel log for more details: Device or resource busy    Operation failed, diagnostics report: Unable to create Filesystem, please see VMkernel log for more details: Device or resource busy
Additional Task Details:
	VC-Build: 1476327 Aufgaben-ID: Task Abbrechbar: false Abgebrochen: false Beschreibungs-ID: host.VFlashManager.configureVFlashResourceEx Ereignisketten-ID: 50963811

And obviously nothing is created

But the kernel log shows (amongst other lines) :

2015-01-05T10:50:02.100Z [39880B70 error 'Hostsvc.VFlashManager' user=vpxuser] GetVffsInVFlashResource: VFFS volume [54185628-11226866-18e8-40f2e983dbe0] does not exist.

Also the hostd.log shows: (from a nother attempt , hance the timestamp difference)

2015-01-05T11:37:32.054Z [37FC2B70 verbose 'Hostsvc.FSVolumeProvider' user=vpxuser] LookupVffs: Cannot find VFFS volume with Uuid 54185628-11226866-18e8-40f2e983dbe0

2015-01-05T11:37:32.054Z [37FC2B70 error 'Hostsvc.VFlashManager' user=vpxuser] GetVffsInVFlashResource: VFFS volume [54185628-11226866-18e8-40f2e983dbe0] does not exist.

These errors keep beeing added to the hostd.log even when not attemting to create a vFlash Resource !!

I get the feeling that an initial attempt failed ( not sure) and the UUID/Volume is somewhere left in the configuration.

I have 4 more esxi hosts with exactly the same hardware versions etc., where this issue does not occur and a vFlash resource has easily been created through the webclient.

Should I clean something and if yes , where ?

[Roel03]

The disk apparently had partitions on them , deleted those through gparted on a different machine and first added them as local datastores to the host just to see if I could create a vmfs on them ( which succedeed)  , deleted those datastores and then the disks were absolutly partition less ( confermed by partedUtil getptbl /dev/disks/(DISKID) .

Then I could add them to the vFRM