# IntelliSnap backup operations are failing

Review the following scenarios to troubleshoot snapshot failures:

CIM Service is down on the 3PAR array | To verify if the service is up and running, try the following telnet command: telnet <3PAR Service IP> 5988 If the telnet command gives you a time-out error, check the network connectivity between the 3PAR array and the client. However, if you get a connection-refused error, perform the following steps: Perform an ssh connection with the array service IP: ssh <3PAR Service IP> Run the showcim command to check the service status. An example of the output you may get is shown below: -Service -State -SLP -SLPPort -HTTPPort -HTTPS -HTTPSPort -PGVer -CIMVer Disabled Active Enabled Enabled 5988 Enabled 5989 2.9.1 3.1.1 Run the following command to start the service: <3PAR Array IP or Hostname> cli% startcim The CIM server will start in 90 seconds.
Virtual volumes were created using the 3PAR Management Console | When creating a virtual volume using the 3PAR Management console, ensure that a Common Provisioning Group (CPG) is selected for copy space. This space will store copies of all changes to the user data since the last snapshot of the volume.
A Thin Provision clone was created for a subclient | If you created a Thin Provision clone for a subclient with Fully Provisioned physical disk, ensure that you specify a device group for the array to prevent the 3PAR clone from failing.

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