Hi Lowell
Thank for your help. Below my complete job's details:
01/24/2017 09:02:45 - Info nbjm (pid=4772) starting backup job (jobid=3386) for client WINSRVBF-DB1.BOABurkina.local, policy BKPVM-EXCH, schedule sch-vmexch-Dfull
01/24/2017 09:02:45 - Info nbjm (pid=4772) requesting MEDIA_SERVER_ONLY resources from RB for backup job (jobid=3386, request id:{113D7640-D24A-448A-AFA6-2A5F254270B5})
01/24/2017 09:02:45 - requesting resource STU_DP_DD2500
01/24/2017 09:02:45 - requesting resource winsrvbf-ntbkp.NBU_CLIENT.MAXJOBS.WINSRVBF-DB1.BOABurkina.local
01/24/2017 09:02:45 - granted resource winsrvbf-ntbkp.NBU_CLIENT.MAXJOBS.WINSRVBF-DB1.BOABurkina.local
01/24/2017 09:02:45 - estimated 0 kbytes needed
01/24/2017 09:02:45 - begin Parent Job
01/24/2017 09:02:45 - begin Application State Capture: Step By Condition
Operation Status: 0
01/24/2017 09:02:45 - end Application State Capture: Step By Condition; elapsed time 0:00:00
01/24/2017 09:07:16 - Info ascc (pid=9048) Exchange: snapshot preparation successful, with the following information: Found the Symantec VSS Provider installed on this VM.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\Direction' is not supported because volume <F:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\Direction' is not supported because volume <F:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\Informaticiens' is not supported because volume <G:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\Informaticiens' is not supported because volume <G:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\NBU' is not supported because volume <G:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\NBU' is not supported because volume <G:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\Utilisateurs3' is not supported because volume <G:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\Utilisateurs3' is not supported because volume <G:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\Utilisateurs5' is not supported because volume <G:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: GRT Functionality for Database 'Microsoft Information Store:\Utilisateurs5' is not supported because volume <G:\> is on a GPT disk and is not supported.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: Database <NBUTEST> is not mounted and cannot be backed up.
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: snapshot preparation successful, with the following condition: At least one of the Exchange databases cannot be backed up because the database is not mounted.
01/24/2017 09:07:16 - Critical ascc (pid=9048) Exchange: vfm_freeze_commit: method: VSS_Writer, type: FIM, function: VSS_Writer_freeze_commit
01/24/2017 09:07:16 - Critical ascc (pid=9048) Exchange:
01/24/2017 09:07:16 - Critical ascc (pid=9048) Exchange: vfm_freeze_commit: method: VSS_Writer, type: FIM, function: VSS_Writer_freeze_commit
01/24/2017 09:07:16 - Critical ascc (pid=9048) Exchange:
01/24/2017 09:07:16 - Critical ascc (pid=9048) Exchange: snapshot processing failed, status 156
01/24/2017 09:07:16 - Critical ascc (pid=9048) Exchange: snapshot creation failed - SNAPSHOT_NOTIFICATION::PostSnapshot failed., status 130
01/24/2017 09:07:16 - Warning ascc (pid=9048) Exchange: Microsoft Information Store:\* is not frozen
Operation Status: 13
01/24/2017 09:07:16 - end Parent Job; elapsed time 0:04:31
Operation Status: 13
file read failed (13)
It's great an good case that need investigation. From my side I stop investigation once GRT is not supported. So I have not testing environment for next step.
Thank again for your precious help.