[OVM / PCA] Various Storage interactions generate "Unable to issue SG_IO INQ CDB: do_scsi_pt: Resource temporarily unavailable"
Last updated on NOVEMBER 29, 2017
Applies to:Private Cloud Appliance - Version 1.0.1 and later
Oracle VM - Version 3.0.1 and later
On Oracle VM and Oracle Private Cloud Appliance, when deleting a LUN on a storage and re-creating one with a different size, the LUN does not get detected properly by the Oracle VM Manager.
When looking at the /var/log/ovs-agent.log on the compute nodes / OVM Servers during the first storage refresh and any subsequent one(s) after these changes, the following kind of errors are being recorded :
[2017-01-06 12:58:53 26917] DEBUG (SCSIPlugin:342) EXIT : getStatus() - Success
[2017-01-06 12:58:53 26917] DEBUG (SCSIPlugin:614) Unable to issue SG_IO INQ CDB: do_scsi_pt: Resource temporarily unavailable
[2017-01-06 12:58:53 26917] ERROR (SCSIPlugin:232) IOError: Exception None obtaining LUN info from /dev/mapper/3600144f0adb8c09200005547f5e80004
Additionally, even though all Storage Initiators are correctly provisioned for all Compute Nodes / Oracle VM Servers, the Storage tab does not list all compute nodes for the newly created LUN, or alternatively lists none at all.
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