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Getting an error when trying to delete a vmware datastore

Posted on 2014-11-05
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Last Modified: 2014-11-05
I have a new datastore that I want to delete but each time I try I get the following error message:
Call "HostDatastoreSystem.RemoveDatastore" for object "datastoreSystem-7723

This datastore was not assigned to any vm as of yet but I need to delete it and then recreate it...
Any idea why I cant delete this and what I can do to delete it?
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Question by:vmich
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LVL 118
ID: 40423861
Is the datastore in use?
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Author Comment

by:vmich
ID: 40423866
No I created it yesterday and did nothing with it along with 3 others and I was able to delete the 3 others but this one is giving me that error when trying to delete it..
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LVL 118
ID: 40423883
Are you using 5.x ?
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Author Comment

by:vmich
ID: 40423895
No sorry forgot to add that..
It is esxi 4.1
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LVL 118
ID: 40423915
Okay, I did wonder because 5.x, has a new facility to check what is in use, before it un-mounts and deletes.

Have you checked for content, at the console or SSH?

It's not in use by HA ?

Storage I/O Control ?
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Author Comment

by:vmich
ID: 40423934
Well there are 3 host using it but like I said I was able to delete the other 3 new datastores without any errors but this one gives me the error.
How can I check for storage I/o control
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LVL 118
ID: 40423952
It should state enabled for the datastore in the client.
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Author Comment

by:vmich
ID: 40423970
no it says disabled for that..
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LVL 118
ID: 40424050
do you have other LUNs on this host from the same SAN?
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Author Comment

by:vmich
ID: 40424062
yes and they are working fine..
Like I said I created 4 new datastores yesterday but did not use them and then wanted to delete them today and was able to del 3 out of the 4..
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LVL 118

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE) earned 500 total points
ID: 40424096
I think I would remove the LUN from the SAN, and re-scan on the HBA
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Author Comment

by:vmich
ID: 40424116
but if I do that, wont it leave the datastore as greyed out on the vmhost?
I thought you were supposed to delete the datastore first before removing the lun from the san?
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LVL 118
ID: 40424127
In fact you are suppose to do lots of things, e.g. LUN masking, to stop iSCSI hanging, but that only became an issue in 5.x.

otherwise it's long and involved at the SSH or console prompt, trying to find the process, and shut it down.
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Author Comment

by:vmich
ID: 40424162
So is ok to remove the lun from the san and then do the hba rescan and will this remove the datastore or will it stay on the host but greyed out?
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LVL 118
ID: 40424212
That's a 50/50 question.

if it is "in use" it will remain grayed out.
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Author Comment

by:vmich
ID: 40424221
No it is not is use which is why I don't understand why it gives me an error when trying to delete it..
Nothing ever is easy is it?? lol
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Author Closing Comment

by:vmich
ID: 40424246
removed host access to lun via san..
That worked. Thanks once again Andrew...
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