Diagnostic Tools¶
There is an extensive list of diagnostic tools available under the diag menu.
For example output of diag commands, see: diag Command Examples.
platform@VOSS:~$ diag
USAGE:
------
diag config [<config-item>] - Display configuration, optionally specifying the configuration prefix, diag
config /platform/network/name
diag config app <app-config> [<config-item>] - Display application configuration, optionally specifying the configuration
prefix, eg diag config app snmp /community
diag date <epoch timestamp> - Convert epoch timestamp to datetime
diag disk - Display diagnostics for disk usage
diag epoch <yyyy-mm-dd hh:mm> - Convert datetime to epoch timestamp
diag filehash - Display the file system hash integrity check
diag filehash init - Initialise the file system hash integrity 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 largefiles - Find the largest files on your system no more than the top 10 items are display
diag mem - Display memory diagnostics
diag monitor - Display the system resource analysis
diag monitor list - Display the long-term average and maximum system resource usage
diag nicstat - Network interface statistics
diag ntp - Display ntp status
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 stats - Display the container statistics
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 vmstat - Virtual memory subsystem statistics
Command Descriptions
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 |
diag mem |
Display a more detailed memory usage by process. |
diag ntp |
Display details of ntp server, including peers and host addresses. Equivalent to the |
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: |
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. |
For diag health, see also Diagnostic Troubleshooting.