Dear all, thank you for your help in advance.

We have deployed a new DEL-EMC storage: VPLEX + XTrem IO as disk array.

I have configured all in the array manager as documentation sais (http://documentation.commvault.com/commvault/v11/article?p=features/snap_backup/configuration/on_cs/t_snap_vplex_array_adding.htm). 

Each time we try to make a backup using intellisnap, we have an error on the job. I have take a look at CVMA.log and I can see this failures:

CVMMSnapAPI::getControlHostInfo() - Failed to get Control Host Info request with validFlags [512].
2808  11e8  01/11 22:12:19 ################### CVMMSnapAPI::getControlHostInfo() - Failed to retrieve Array Info
2808  11e8  01/11 22:12:19 ################### CVMMSnapAPI::getControlHostInfoByArrayId() - Unable to get control host information for arrayId [CKM00173300513].
2808  11e8  01/11 22:12:19 1167325             CVSOSnapInfo::setArrayInfo Unable to get array info for array with ID [CKM00173300513]
2808  11e8  01/11 22:12:19 1167325             ERROR:60418:Unable to get array information. Please make sure array information has been entered in the DB using array management
2808  11e8  01/11 22:12:19 1167325             associateArrayAndGetConfigs Failed to set array information for array ID [CKM00173300513], please ensure that the Array is added in Array Management GUI
2808  11e8  01/11 22:12:19 1167325             ERROR:60418:Unable to get array information. Please make sure array information has been entered in the DB using array management
2808  11e8  01/11 22:12:19 1167325             GetArrayAndDeviceInformation Failed to set array information for array ID [CKM00173300513], please ensure that the Array is added in Array Management GUI
2808  11e8  01/11 22:12:19 1167325             cvso_prepareDevices_vplex Failed to set array information for array ID [CKM00173300513], please ensure that the Array is added in Array Management GUI
2808  11e8  01/11 22:12:19 1167325             ERROR:62005:Failed to set array information for array ID [CKM00173300513], please ensure that the Array is added in Array Management GUI
2808  11e8  01/11 22:12:19 1167325             cvso_prepareDevices_vplex Ending cvso_prepareDevices_vplex
2808  11e8  01/11 22:12:19 1167325             CVMASnapHandlerInternal::prepareDevices() - Failed to prepare devices. Err [60500:Error occurred in Snap Engine Error[0xEC02EC54:{CVSnapEngine::prepareDevices(730)} + {CVSnapEngine::prepareDevices(714)/MM.60500}]].
2808  11e8  01/11 22:12:19 1167325             CVMASnapHandlerInternal::prepareVolumeSnaps() - Request for prepareVolumeSnaps Failed. Status [60500].
2808  11e8  01/11 22:12:19 1167325              WORKER   [4522006/0/0         ]  Failed to prepare Volume for Snaps. Err [62005:Failed to set array information for array ID [CKM00173300513], please ensure that the Array is added in Array Management GUI].
2808  11e8  01/11 22:12:19 1167325              WORKER   [4522006/0/0         ]  ProcessVolSnapPrepare from  completed

I am sure that the array is added (I have added and deleted it about 20 times today). Media agent has access to the array and to the VPlex in zoning and it's registered on both them (initiators are registered and working).

What can be happening?

Thanks a lot.

Dear all.

I have found a clue about my problem. I have deleted again the arrays and added one more time.

Whe I run the backup job, now I can see (in red the real  error message)

2808  494   01/11 22:29:15 1167344             RunCommand Failed to execute command. ErrCode [2] ErrStr [The system cannot find the file specified.

]
2808  494   01/11 22:29:15 1167344             VPLEXFindBackend Failed to run command ["python" "C:\Program Files\CommVault\Simpana\MediaAgent\Scripts\VPLEX\vplexcli.py" virtual-volume find-backend -f "C:\Program Files\CommVault\Simpana\Base\Temp\Volumes_1167344_2018.01.11-22.29.15" -s 10.200.0.186 -u service] with error [2: The system cannot find the file specified.

]
2808  494   01/11 22:29:15 1167344             cvso_prepareDevices_vplex Failed to find backend device for VPLEX Virtual Volume(s) [dev_test_2_1_vol|].Please check VPLEX Control Host, Username and Password entered in Array Management.
2808  494   01/11 22:29:15 1167344             ERROR:62008:Failed to find backend device for VPLEX Virtual Volume(s) [dev_test_2_1_vol|].Please check VPLEX Control Host, Username and Password entered in Array Management.
2808  494   01/11 22:29:15 1167344             cvso_prepareDevices_vplex Ending cvso_prepareDevices_vplex
2808  494   01/11 22:29:15 1167344             CVMASnapHandlerInternal::prepareDevices() - Failed to prepare devices. Err [60500:Error occurred in Snap Engine Error[0xEC02EC54:{CVSnapEngine::prepareDevices(730)} + {CVSnapEngine::prepareDevices(714)/MM.60500}]].
2808  494   01/11 22:29:15 1167344             CVMASnapHandlerInternal::prepareVolumeSnaps() - Request for prepareVolumeSnaps Failed. Status [60500].
2808  494   01/11 22:29:15 1167344              WORKER   [4523246/0/0         ]  Failed to prepare Volume for Snaps. Err [62008:Failed to find backend device for VPLEX Virtual Volume(s) [dev_test_2_1_vol|].Please check VPLEX Control Host, Username and Password entered in Array Management.].
2808  494   01/11 22:29:15 1167344              WORKER   [4523246/0/0         ]  ProcessVolSnapPrepare from  completed

My media agent is failing and not creating the necessary file for the python script.

Any help about this?

THanks a lot!