Installation guide

Error Notification
5-32 Fault Tolerant System Administration (R1004H) HP-UX version 11.00.03
■ If you set min_samples to 0, the system does not calculate MTBF, but
considers the device to have exceeded the MTBF threshold at the first failure.
■ If you set min_samples to a value greater than 6, the system sets it to 6.
To clear all the error information recorded for a device, enter
ftsmaint clear hw_path
hw_path is the hardware path of the device.
NOTE
The default numsamp value for suitcases is either 0 (for PA 7100-based
suitcases) or 6 (for PA 8000-based suitcases).
Configuring the Soft Error Weight
You can set the number of soft errors that are required before the time of a soft
error is used to recalculate MTBF. When the number of soft errors equals the
soft_wt value, the system records the time of the last soft error and recalculates
MTBF. To set the soft errors number, enter
ftsmaint soft_wt soft_error_weight hw_path
soft_error_weight is the number of soft errors that will cause the system to
calculate MTBF, and hw_path is the hardware path of the device.
For more information about hard and soft errors, see “Error Detection and
Handling” earlier in this chapter. For more information about how MTBF is
calculated, see “MTBF Calculation and Affects.”
Error Notification
When a Continuum system operates normally, with all major devices duplexed,
you might not notice when one device of a duplexed pair fails. For this reason, the
following indicators are provided to alert you to a device failure:
■ Remote Service Network (notification from the CAC)
■ status lights on the device
■ console and syslog messages
■ indications in status displays