Diagnostic Tools

There is an extensive list of diagnostic tools available under the diag menu.

platform@development:~$ diag
USAGE:
------
diag disk              - display diagnostics for disk usage
diag filehash          - display the file system hash intergrity check
diag free              - display diagnostics relating to free memory
diag health            - display a health report
diag health report     - save a health report as a logfile
diag iostat            - IO subsystem statistics
diag iotop             - IO metrics
diag largefiles        - Find the largest files on your system no more than
                          the top 10 items are display
diag mem               - display memory diagnostics
diag monitor           - update the system resource analysis. Use
                          'diag monitor list' to view the results
diag monitor list      - display system resource analysis
diag nicstat           - Network Interface Statistics
diag perf <commands>   - Linux perf tools (try --help)
diag ping <host>       - ping a remote host to test network reachability
diag proc              - display a list of system processes
diag resolve <host>    - resolve a hostname to IP address
diag tasks             - display constant task listing
diag test_connection <host> <port> - Test if system can open a connection to a remote port
diag top               - Process resource statistics
diag traceroute <host> - Discover the network path to <host>
diag unittests         - Run system unit tests
diag vmstat            - Virtual Memory subsystem statistics

    mail - local mail management          keys - manage ssh / sftp credenti
 network - network management           backup - manage backups
    voss - voss management tools           log - manage system logs
    cert - manage nginx certificates    notify - notifications control
     ssl                              schedule - scheduling commands
    diag - system diagnostic tools      system - system administration
    snmp - snmp configuration             user - manage users
  drives - manage disk drives              app - manage applications
security - security update tools

Some of the commands are provided with details below:

Command	Description
diag ping <host>	Test network reachability to a network host.
diag resolve <hostname>	Test DNS resolution of a hostname.
diag test_connection <host> <port>	Given a host IP and port number, return a message: “Successfully connected to <host>:<port>” or “Failed to connect to <host>:<port>”.
diag free	Display the memory usage.
diag disk	Display the disk usage. Logical volumes for the database have the format /dev/mapper/voss-dbroot.
diag mem	Display a more detailed memory usage by process.
diag health	Display a comprehensive health summary. This includes status on the following: CPU, Memory, Disk, Security Update, Application, Cluster, Cluster Failover and Health email scheduling. Logical volumes used by the database have the format: /dev/mapper/voss-dbroot. See also Diagnostic Troubleshooting.
diag top	Display a single Unix top summary.
diag unittests	Utility for developers only. Note that services will be restarted by this utility.
diag filehash	Although a checksum of system and configuration files is carried out regularly, a manual check for changes since the previous check can be carried out. If any files have changed, these will be listed in the command output.