4Maintaining the DR Series SystemThis topic introduces the CLI commands that are useful for collecting diagnostics information, and managing thefilesystem and performing system maintenance-related tasks. These CLI commands are grouped into two categories:• The Diagnostics command and its options are used to collect DR Series system log file information. For moreinformation, see Diagnostics.• The Maintenance command and its options are used to perform filesystem and system maintenance. For moreinformation, see Maintenance.DiagnosticsThe DR Series system CLI Diagnostics command lets you display, collect, and manage the diagnostic log file informationfor your system, which provides these benefits:• Captures a snapshot of the current state of DR Series system operations.• Assists Dell Support understand the sequence of DR Series system operations.• Records DR Series system operations in the event that Dell Support needs to provide technical assistance.The Diagnostics command works by collecting all system-related information that assists in understanding systemoperations when diagnosing a problem or error condition in the DR Series system.The Diagnostics service runs during system startup, and listens for incoming requests sent to the DR Series system.There are two modes in which the diagnostics collection process is started:• Admin-Generated Mode: when a DR Series system CLI or GUI request is made by the administrator (and thedefault reason is listed as admin-generated).• Auto-Generated Mode: when a process or service failure is reported, the DR Series system starts collecting awide variety of system-related information. After a successful completion of the auto-generated collection, theDR Series system also generates a system event.NOTE: Use the alerts --show --events or the alerts --show --alerts command to display or check the current eventsor alerts.The Diagnostics service stores all log information in a primary log directory, and the DR Series system also maintains abackup copy of each log in a separate, secondary log directory. After each new diagnostics log is collected, theDiagnostics process computes the sizes of each of these two log location directories.Whenever a log directory exceeds its maximum storage capacity, the oldest logs are deleted to free up space for thecurrent logs that the DR Series system generates.Diagnostics Command UsageThis topic introduces the diagnostics command usage:• diagnostics --show• diagnostics --collect [options]• diagnostics --delete [options]85
