This topic describes the EMC® Data Domain® Boost (DD Boost™) commands that you use to manage the DD Boost feature on the EMC® Data Domain® system.
NOTE: For information about configuring DD Boost using the graphical user interface (GUI)-based Enterprise Manager, see the EMC Data Domain Operating System Administration Guide.
The ddboost command manages the integration of Data Domain systems and disk backup devices. DD Boost is a licensed feature. If basic options do not work, verify that the proper licensing has been implemented on your Data Domain system. The ddboost command includes the following options.
• ddboost access add clients: Add clients to a DD Boost access list.
• ddboost access delete clients: Delete clients from DD Boost access list.
• ddboost access reset: Reset DD Boost client access list to factory default.
• ddboost access show: Show DD Boost client access list.
The command checks if the IP address is valid. If not, a message reports the IP address is invalid — either because it is not configured on the Data Domain system, or its interface is not enabled. Use the net show settings or net show config commands to view available IP addresses.
If the IP is valid, the message IP added to list is displayed. After adding an IP address as an interface, you need to enable Advanced Load Balancing and Link Failover using the ddboost ifgroup enable command.
• If an interface — or a network interface card (NIC) that has multiple interfaces — fails, all the in-flight jobs to that interface transparently fail over to a healthy interface in the ifgroup. Any jobs that are started after the failure are routed to the healthy interfaces. You can add public or private IP addresses for data transfer connections. ddboost ifgroup add interface <IP address>
ddboost ifgroup del interface <IP address>
The ifgroup reset command is equivalent to issuing the ddboost ifgroup disable command followed by issuing multiple ddboost ifgroup del interface <IP address> commands.
Administrators can use this command to enable or disable the distributed segment processing feature on the Data Domain operating system. By default, it is enabled. If this feature presents any problem for a backup server, use this command to disable the feature on the Data Domain system.
ddboost set user-name <user-name>
• op: The name of the NFS operation.
• mean-ms: The mathematical mean time for completion of the operations.
• stddev: The standard deviation for time to complete operations, derived from the mean time.
• max-s: The maximum time taken for a single operation.
• 2,4,6,8, or 10ms: The number of operations that took less than the specified number of milliseconds (ms).
• 100ms: The number of operations that took between 10 ms and 100 ms.
• 1s: The number of operations that took between 100 ms and one second.
• 10s: The number of operations that took between 1 second and 10 seconds.
• >10s: The number of operations that took over 10 seconds.
Use this command to show the output of previous show stats command, the number of bytes written to and read from files contained in storage units, and the number of files created and deleted from storage units. The number of errors encountered for each operation is also shown. Optionally, you can show statistics for a specific number of seconds. The count displays the number of lines equal to the count value.
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