Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.100.0 - Page 825

• Resetting a Unit on a Stack • Recover from Stack Link Flaps Assigning Unit Numbers to Units in an Stack Each unit in the stack has a stack number that is either assigned by you or Dell Networking OS. Units are numbered from 0 to 11, however, you can only stack six S4820T units. Stack numbers are stored in NVRAM and are preserved upon reload. • Assign a stack-number to a unit. EXEC Privilege mode stack-unit old-unit-number renumber new-unit-number Renumbering the stack manager triggers the whole stack to reload, as shown in the message below. When the stack comes back online, the master unit remains the management unit. Dell#stack-unit 2 renumber 1 Renumbering master unit will reload the stack. WARNING: Interface configuration for current unit will be lost! Proceed to renumber [confirm yes/no]: yes Creating a Virtual Stack Unit on a Stack Use virtual stack units to configure ports on the stack before adding a new unit. • Create a virtual stack unit. CONFIGURATION mode stack-unit stack-unit-number provision S4820T Displaying Information about a Stack To display information about the stack, use the following command. • Display for stack-identity, status, and hardware information on every unit in a stack. EXEC Privilege mode show system • Display most of the information in show system, but in a more convenient tabular form. EXEC Privilege mode show system brief • Display the same information in show system, but only for the specified unit. EXEC Privilege mode show system stack-unit • Display topology and stack link status for the entire stack. EXEC Privilege mode show system stack-ports [status | topology] Examples of the show system Commands Display information about a switch stack using the show system command. Stacking 825