If the SSD is down or being rebooted (that is, not fully working), the L0 controllers will automatically throttle the high-speed network because they are no longer hearing SSD heartbeats. This is done in order to prevent possible network congestion, which normally requires the SSD to be up in order to respond to such congestion. Once the SSD is up again, the L0 controllers will unthrottle the network. (No attempt is made to prevent loss of data or to carry out operations that occur when the SSD is offline.) The consequences of throttling are that the network will perform much more slowly than normal.
When the SSD comes up, it restarts, establishes communications with all external interfaces, restores the proper state in the state manager, and continues normal operation without user intervention.
For a scheduled or unscheduled shutdown and reboot of the SSD, it is necessary to have uncorrupted configuration files on a local SSD disk.
Procedure 67. Rebooting a stopped SDD
1. Verifythatyourconfigurationfilescontainthemostrecentsystemconfiguration. 2. Boot the SSD.