Users Guide

The following is an example of the show system brief command to view the stack summary information.
Dell#show system brief
Stack MAC : 90:b1:1c:f4:a7:c7
Reload-Type : normal-reload [Next boot : normal-reload]
-- Stack Info --
Unit UnitType Status ReqTyp CurTyp Version Ports
------------------------------------------------------------------------------------
0 Member not present S6000
1 Member not present
2 Standby online S6000 S6000 1-0(0-3387) 128
3 Member not present S6000
4 Member not present
5 Management online S6000 S6000 1-0(0-3387) 128
-- Power Supplies --
Unit Bay Status Type FanStatus FanSpeed(rpm)
---------------------------------------------------------------------------
2 0 up AC up 6720
2 1 up AC up 6688
5 0 up AC up 6688
5 1 down UNKNOWN down 0
-- Fan Status --
Unit Bay TrayStatus Fan0 Speed Fan1 Speed
------------------------------------------------------------------------------------
2 0 up up 7072 up 6971
2 1 up up 7021 up 7021
2 2 up up 7021 up 6971
5 0 up up 7021 up 7123
5 1 up up 6971 up 7021
5 2 up up 7021 up 6971
Speed in RPM
The following example shows the show system stack-ports command.
Dell#show system stack-ports
Topology: Daisy chain
Interface Connection Link Speed Admin Link
(Gb/s) Status Status
---------------------------------------------------------
2/0 42 up down
2/4 5/120 42 up up
5/4 42 up down
5/120 2/4 42 up up
Dell#
Inuencing Management Unit Selection on a Stack
Stack priority is the system variable that Dell Networking OS uses to determine which units in the stack are the master and standby
management units. If multiple units tie for highest priority, the unit with the highest MAC address prevails.
If management was determined by priority only, a change in management occurs when:
• the management unit is powered down or a failover occurs.
• you disconnect the management unit from the stack.
When the management unit fails, the unit disappears from the stack topology. At that time, the standby unit detects the communication
loss and switches from the standby unit role to the management unit role in the stack. From the remaining units in the stack, the system
selects a new standby unit based on the unit priority using the same algorithm used when the stack was initially created. When the failed
unit recovers, it takes the next available role, usually that of a stack member.
Stacking
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