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Zack.Zhang
44 Posts
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5928
May 15th, 2012 22:00
Datastore losts host connectivity?
Recently I saw one of the datastores in my vCenter lost the connectivity to its ESX host (i.e. When I select the host and open its hosts tab, nothing shows up).
I just wonder what could have caused this? Typically I use VSI USM to provision a datastore, and it will always mount the datastore to a host. So under what circumstances will the datastore be orphaned?
For one moment I thought maybe the datastore was unmounted, but then I realized it's a different case because typically unmounted datastores will be displayed as "disconnected", but this datastore is just as it's still active, but when I right click it, I see no "unmount" option while normal datastores have.
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Posted May 16th, 2012 00:00
I have seen some orphaned VM a couple of times due to the backend storage issue, but never see orphaned datastore. The issue might resides on HBA, the multi-path software or storage. When you click the configuration tab of that host, what did you see on storage view? Is that datastore still there? Have you done any refresh or rescan operation?
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Posted May 16th, 2012 02:00
Hi Jingyi,
1. When I click the configuration tab, it stays at "Loading..." and nothing more will come up.
2.I tried the rescan, but nothing changed.
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Posted May 17th, 2012 03:00
Zack,
You cannot see "unmount" option. Can you have delete option available for the right click? You can try to take some screenshot on the symptom.
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Posted May 17th, 2012 18:00
More questions, what's your vSphere version? Can you still browse your datastore? Does this datastore can still seen normally from inventory, or there is "orphan" after its name? As Louis said, some screenshots will help the understanding.
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Posted May 18th, 2012 03:00
In the vmkernel logs on the ESX host, are you seeing any LUN disconnects, NMP or PP errors?
Need to narrow down if you are losing access to the LUN or just the VMFS datastore.
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Posted May 18th, 2012 03:00
Hi JIngyi/Louis,
Please check out the snapshots:
1. The configuration tab for the datastore shows nothing (stuck in loading).
2. When I tried to upload a file in the datastore browser, an error pops up saying that it's inaccessible.
3. The context-menu for the datastore has no "unmount" option and the "delete" option is grayed out.
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Posted May 21st, 2012 01:00
Hi Jingyi,
To answer your questions:
1. The datastore is not in the storage panel.
2. I tried rescan but the datastore still doesn't come up.
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Posted May 21st, 2012 01:00
Zack,
If you select a ESX host where the DataStore is mounted, click Configuration Tab, then click Storage on the left pane, will you see your DataStore there? Can you select Update or rescan function to see if ESX will find out this DS again?
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Posted May 21st, 2012 19:00
So the DataStore is already removed from storage side. I'd suggest you to follow this VMware KB http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1026661. It provides some CLI commands to remove DS from vCenter inventory. Keep us posted if you make it.
kangw2
2 Intern
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28 Posts
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Posted May 16th, 2012 00:00
Not familiar with it, we will make research and get back to you.