The RLM command line interface (CLI) commands enable you to remotely access and administer the storage system and diagnose error conditions. Also, the RLM extends AutoSupport capabilities by sending alerts and notifications through an AutoSupport message.
The RLM extends AutoSupport capabilities by sending alerts and “down system” or “down filer” notifications through an AutoSupport message when the storage system goes down, regardless of whether the storage system can send AutoSupport messages. Other than generating these messages on behalf of a system that is down, and attaching additional diagnostic information to AutoSupport messages, the RLM has no effect on the storage system’s AutoSupport functionality. The system’s AutoSupport behavior is the same as it would be without RLM installed. The AutoSupport configuration settings and message content behavior of the RLM are inherited from Data ONTAP.
In addition to AutoSupport messages, the RLM generates SNMP traps to configured trap hosts for all “down system” or “down filer” events, if SNMP is enabled for the RLM.
Hardware-assisted takeover is available on systems that support RLMs and have the RLM modules installed and set up. For more information about hardware-assisted takeover, see the Data ONTAP Active/Active Configuration Guide.
The RLM supports the SSH protocol for CLI access from UNIX clients and PuTTY for CLI access from PC clients. Telnet and RSH are not supported by the RLM. Telnet and RSH protocols are not available on the RLM, and system options to enable or disable them have no effect on the RLM.