Data Domain General Health Check

Data Domain General Health Check Here's a workflow for performing a general health check on your Data Domain System. It contains commands and outputs to help identify alerts or misconfigurations.

Welcome to Dell Technologies Data Domain - How to Series.

Data Domain General Health Check. Reference Dell Knowledge Base Article # 197930. This video is meant to be a workflow for an Engineer who is performing a general health check on a Data Domain system. It contains commands and outputs to help identify alerts or misconfigurations.

Note: It may be necessary to open a new SR if you run into a particular issue in one of these areas for further troubleshooting with that skill set.

Here is the demonstration. Step One: Log in to the Data Domain system using SSH connection. Step Two: Ensure "filesystem" is enabled. filesystem should be enabled and running.

If "filesystem" is not running, please log a service request for Dell Support. Step Three: Ensure the DDOS version is supported for the DD model. Please refer to KB 81247 to check the supported version list.

Step Four: Check current alerts in the Data Domain system. Any alerts that impact the health of the system must be addressed. Step Five: Ensure that "/data" is below 90%. Data Domain recommendation is to keep the FS below 90% used at all times for optimal performance.

Step Six: Ensure there are no failed, reconstructing, or absent disks, represented as "F," "R," and "A," respectively. Step Seven: Check the disk reliability output to see if a proactive disk replacement is needed. Ensure there are no disks with reallocated sectors above 1K or increasing daily.

Step Eight: Check whether the enclosure topology is correct. Check whether any error appears with an asterisk next to the "enc.ctrl.port" field. Test communications on the ports with cables connected for five minutes. If there is an error, it's recommended to reseat the cables or LCCs.

Step Nine: Check for enclosure misconfigurations. If the output indicates one or more component errors, they must be addressed.

Please refer to the following Dell Knowledge Base articles for more information. KB 81247: "DDOS Software Versions". KB 14723: "How to check alerts on Data Domain Systems". KB 54303: "How to resolve High Space utilization Issues". And KB 21916: "Disk State Descriptions".

Thank you for watching.