Extreme Networks ExtremeWare XOS Guide Manual page 194

Status Monitoring and Statistics
installed, failover to the other MSM if the switch detects a faulty MSM or I/O module. This enhanced
level of recovery detects faults in the ASICs as well as packet buses.
To configure module recovery, use the following command:
configure sys-recovery-level slot <slot_number> [none | reset]
Where the following is true:
—Configures the MSM or I/O module to maintain its current state regardless of the detected
●
none
fault. The offending MSM or I/O module is not reset. ExtremeWare XOS logs fault and error
messages to the syslog.
—Specifies that the offending MSM or I/O module be reset upon fault detection. ExtremeWare
●
reset
XOS logs fault, error, system reset, and system reboot messages to the syslog.
The default setting is
To get the most from module recovery, Extreme Networks recommends using the default settings for
both system recovery and module recovery. The default setting for system recovery is
default setting for module recovery is
"Configuring System Recovery" on page
By using the default settings, the switch resets the offending MSM or I/O module if fault detection
occurs. An offending MSM is reset any number of times and is not permanently taken offline. On the
BlackDiamond 10K switch, an offending I/O module is reset a maximum of three times. On the
BlackDiamond 8800 family of switches, an offending I/O module is reset a maximum of five times.
After the maximum number of resets, the I/O module is permanently taken offline.
Module Recovery Actions
Table 29 displays the actions module recovery takes when configured as reset (the default setting) in
combination with the system recovery settings all and none.
Table 29: Module recovery actions
Module Recovery Setting
and Hardware Configuration
reset
Single MSM
Dual MSM
I/O Module
194
. Extreme Networks recommends using the default setting.
reset
. For more information about system recovery, see
reset
193.
System Recovery Setting
and Action Taken
all
Resets the MSM.
Resets the primary MSM
and fails over to the
backup MSM.
BlackDiamond 10K
switch—Resets the I/O
module a maximum of
three times. After the
third time, the I/O module
is permanently taken
offline.
BlackDiamond 8800
family of switches—Resets
the I/O module a
maximum of five times.
After the fifth time, the
I/O module is permanently
taken offline.
, and the
all
ExtremeWare XOS 11.3 Concepts Guide