Dell VERLAND TANDBERG Titan T2000 Owner's Manual page 92

Table 28. Event descriptions and recommended actions (continued)
Number Severity
203 Warning
204 Error
Warning
Info.
205 Info.
206 Info.
207 Error
Description/Recommended actions
● No action is required.
An environmental change occurred that allows write-back cache to be enabled, but the auto-
write-back preference is not set. The environmental change is also logged at approximately the
same time as this event (event 191, 193, 195, 199, 201, or 241).
Recommended actions:
● Manually enable write-back cache.
An error occurred with either the NV device itself or the transport mechanism. The system may
attempt to recover itself.
The eMMC is used for backing up unwritten cache data when a controller goes down
unexpectedly, such as when a power failure occurs. This event is generated when the Storage
Controller (SC) detects a problem with the eMMC as it is booting up.
Recommended actions:
● Restart the Storage Controller that logged this event.
● If this event is logged again, shut down the Storage Controller and replace the eMMC.
● If this event is logged again, shut down the Storage Controller and replace the controller
module.
The system has started and found an issue with the NV device. The system will attempt to
recover itself.
The eMMC is used for backing up unwritten cache data when a controller goes down
unexpectedly, such as when a power failure occurs. This event is generated when the Storage
Controller (SC) detects a problem with the eMMC as it is booting up.
Recommended actions:
● Restart the Storage Controller that logged this event.
● If this event is logged again, shut down the Storage Controller and replace the controller
module.
The system has come up normally and the NV device is in a normal expected state.
This event will be logged as an Error or Warning event if any user action is required.
Recommended actions:
● No action is required.
The indicated volume has been mapped or unmapped.
Recommended actions:
● No action is required.
Disk group scrub has started.
The scrub checks disks in the disk group for the following types of errors:
● Data parity errors for a RAID 3, 5, 6, or 50 disk group.
● Mirror verify errors for a RAID 1 or RAID 10 disk group.
● Media errors for all RAID levels including RAID 0 and non-RAID disk groups.
When errors are detected, they are automatically corrected.
When the scrub is complete, event 207 is logged.
Recommended actions:
● No action is required.
Disk group scrub completed and found an excessive number of errors in the indicated disk group.
This event is logged as Error severity when more than 100 parity or mirror mismatches are
found and corrected during a scrub or when 1 to 99 parity or mirror mismatches are found and
corrected during each of 10 separate scrubs of the same disk group.
Events and event messages 91