OnCommand Unified Manager (OCUM) Virtual Appliance 7.x and above Active IQ Unified Manager (AIQUM) 9.6 While utilizing the steps to add space to the data disk of UM vApp instance, receive an "blockdev...OnCommand Unified Manager (OCUM) Virtual Appliance 7.x and above Active IQ Unified Manager (AIQUM) 9.6 While utilizing the steps to add space to the data disk of UM vApp instance, receive an "blockdev failed" error. Use the steps in KB to enable the diag shell and log in Execute the following to the list all of the extend-data.log files: Locate the latest extend-data-***.log file and read its contents Total: 2 [409.99 GiB] / in use: 2 [409.99 GiB] / in no VG: 0 [0 ]