HP StorageWorks 2000i HP StorageWorks P2000 G3 MSA System Event Description Re - Page 17

163 Warning The host WWNs (node and port) previously presented by the partner controller module, which is currently offline, are unknown. This event has two possible causes: • The online controller module reporting the event was replaced or moved while the system was powered off. • The online controller module had its flash configuration (where previously used WWNs are stored) cleared. The online controller module recovers from this situation by generating a WWN based on its own serial number for the other controller module. Recommended actions • If the controller was replaced or someone reprogrammed its FRU ID data, verify the WWN information for the other controller module on all hosts that access it. 166 Warning The RAID metadata level of the two controllers does not match. Usually, the controller at the higher firmware level can read metadata written by a controller at a lower firmware level. The reverse is typically not true. Therefore, if the controller at the higher firmware level failed, the surviving controller at the lower firmware level cannot read the metadata on disks that have failed over. Recommended actions • If this occurs after a firmware update, it indicates that the metadata format changed, which is rare. Update the controller with the lower firmware level to match the firmware level on the other controller. 167 Warning A diagnostic test at controller bootup detected an abnormal operation, which might require a power cycle to correct. Recommended actions • Contact technical support. 168 Error The indicated SES alert condition was detected in the indicated enclosure. This event is logged as Error when one of the power supplies in an enclosure has no power supplied to it or when a hardware failure is detected. Recommended actions • Most voltage and temperature errors and warnings relate to the power supply module; see Table 2 on page 39. If there is no problem with the power source, the indicated FRU has probably failed and should be replaced. When the problem is fixed, event 169 is logged. Warning The indicated SES alert condition was detected in the indicated enclosure. Recommended actions • Most voltage and temperature errors and warnings relate to the power supply module; see Table 2 on page 39. When the problem is resolved, event 169 is logged. Informational The indicated SES alert condition was detected in the indicated enclosure. Recommended actions • Most voltage and temperature errors and warnings relate to the power supply module; see Table 2 on page 39. HP StorageWorks P2000 G3 MSA System Event Descriptions Reference Guide 17