TMS009 messages on tape mounts

Document ID : KB000071410
Last Modified Date : 20/02/2018
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We are in the process of converting our IBM virtual tape environment (ATL) to EMC virtual tape environment (MTL). When a tape is mounted in the EMC virtual tape environment, we see the TMS009 message is displayed and it is also highlighted in our syslog. The mount does not wait for a response. Why is this showing up? 
The IBM ATL mounts for tapes are suppressed before CA 1 sees them so you do not get the TMS001 or TMS009 messages.

The mount for a tape in an EMC device is not suppressed so you will now see the TMS001 and TMS009 messages and the tape will automatically be mounted. This is an informational message.