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Cisco MDS 9000 Family Command Reference
OL-16217-01, Cisco MDS SAN-OS Release 3.x
Chapter 21 S Commands
system health (Configuration mode)
system health (Configuration mode)
To configure Online Health Management System (OHMS) features for a specified interface or for the
entire switch, use the system health command. To disable this feature, use the no form of the command.
system health [failure-action | interface {fc slot/port | iscsi slot/port} |
loopback {frame-length {bytes | auto} | frequency seconds}]
no system health [failure-action | interface {fc slot/port | iscsi slot/port}]
Note On a Cisco Fabric Switch for HP c-Class BladeSystem and on a Cisco Fabric Switch for IBM
BladeCenter, the syntax differs as follows:
interface {bay port | ext port}
Syntax Description
Defaults Enabled.
Frame-length is auto-size, which could range from 0 to 128.
Command Modes Configuration mode.
Command History
failure-action Prevents the SAN-OS software from taking any OHMS action for the
entire switch.
interface Configures an interface.
fc slot/port (Optional) Specifies the Fibre Channel interface to configure by slot and
port number on an MDS 9000 Family switch.
iscsi slot/port (Optional) Specifies the iSCSI interface to configure by slot and port
number on an MDS 9000 Family switch.
bay port | ext port (Optional) Configures the Fibre Channel interface on a port on a Cisco
Fabric Switch for HP c-Class BladeSystem or on a Cisco Fabric Switch
for IBM BladeCenter. The range is 0 to 48.
loopback Configures the OHMS loopback test.
frame-length bytes Specifies the frame-length in bytes ranging from 0 to 128 bytes for the
loopback test.
auto Configures the frame-length to auto for the loopback test.
frequency seconds Specifies the loopback frequency in seconds ranging from 5 seconds
(default) to 255 seconds.
Release Modification
1.3(4) This command was introduced.
3.0(1) Added the frame-length and auto options to the loopback keyword.
3.1(2) Added the interface bay | ext option.
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