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Features Overview
The Topspin 270 Switched Computing System provides data center managers with a high-performance,
low-latency interconnect.
• “System Architecture” on page 11.
• “About the Topspin 270 Chassis” on page 13.
• “Administrative Features” on page 20.
System Architecture
Hot Standby
On the Topspin 270, the inactive controller card remains on hot standby so that it can assume control in
the event that the active controller card fails over. The hot standby feature lets the Server Switch fail
over without rebooting or resetting any cards in the chassis.
You can access the hot standby controller card with a connection to the serial console port. A CLI
session to the standby controller provides read-only access to the controller. You can view but not
configure the card.
Because the hot standby features keeps both controller cards up, the show card command identifies the
card on which your CLI session runs. In the command output, an asterisk identifies the controller card
to which you are connected. In the example that follows, the CLI session applies to the controller card
in slot 11 (the active card), as identified by the asterisk next to the slot number (line 10).