To Enable The Hardware Watchdog Mechanism And Its Options; About Multipathing Software - Sun Microsystems Sun Fire V445 Server Administration Manual

To Enable the Hardware Watchdog Mechanism
and Its Options
1. Edit the /etc/system file to include the following entry:
set watchdog_enable = 1
2. To obtain the ok prompt, type:
TABLE 5-16
# init 0
3. Reboot the system so that the changes can take effect.
4. To have the hardware watchdog mechanism automatically reboot the system in
case of system hang, at the ok prompt, type:
ok setenv error-reset-recovery = boot
5. To generate automated crash dumps in case of system hang, at the ok prompt,
type:
ok setenv error-reset-recovery = none
The sync option leaves you at the ok prompt to debug the system. For more
information about OpenBoot configuration variables, see

About Multipathing Software

Multipathing software allows you to define and control redundant physical paths to
I/O devices, such as storage devices and network interfaces. If the active path to a
device becomes unavailable, the software can automatically switch to an alternate
path to maintain availability. This capability is known as automatic failover. To take
Chapter 5 Managing RAS Features and System Firmware
Appendix C.
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