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Storage system information and the stats command

The stats command provides access, through the command line or scripts, to a set of predefined data collection tools in Data ONTAP called counters. These counters provide you with information about your storage system, either instantaneously or over a period of time.

Stats counters are grouped by what object they provide data for. Stats objects can be physical entities such as system, processor or disk; logical entities such as volume or aggregate; protocols such as iSCSI or FCP, or other modules on your storage system. To see a complete list of the stat objects, you can use the stats list objects command.

Each object can have zero or more instances on your storage system, depending on your system configuration. Each instance of an object has its own name. For example, for a system with two processors, the instance names are processor0 and processor1.

Counters have an associated privilege mode; if you are not currently running with sufficient privilege for a particular counter, it is not recognized as a valid counter.

When you use the stats command to get information about your storage system, you need to make the following decisions: