3Ware 9550SXU16MLB10 User Guide - Page 75

3DM 2 Reference "Charging" the next time the system is powered on. This indicates the BBU is not able to backup the 3ware RAID controller. When the BBU is in the charging state, write caching is disabled automatically on all units attached to the controller. „ Fault.The BBU detected a fault. This occurs if the voltage or temperature is outside the acceptable range. „ Error. Other BBU error. Please contact AMCC Technical Support. „ Weak Battery. The battery should be replaced soon.The results of a battery health test or capacity test indicate that the battery is below the warning threshold (48 hours). „ Failed Battery. The battery failed a test and must be replaced. A "Failed Battery" status is displayed if the battery failed the health test or the battery capacity is below the error threshold (24 hours). The battery must be replaced. Battery Voltage. Indicates the voltage status of the battery. The BBU measures and evaluates the battery voltage continuously. If the voltage falls outside the normal range, warning or error level AENs are generated. In the case of a voltage error the BBU status will change to "Fault" and the battery will be disconnected electronically. Battery Temperature. Indicates the temperature status of the battery. The BBU measures and evaluates the battery pack temperature continuously. If the temperature falls outside the normal range, warning or error level AENs are generated based on the measured temperature. In the case of a temperature error, the BBU status will change to "Fault" and the battery will be disconnected electronically. Estimated Backup Capacity. Indicates the estimated backup capacity in hours. This is the amount of time that the battery backup unit can protect the data in the 3ware RAID controller's cache memory. This field is set to zero at the start of a new test and is updated after the test completes. A capacity of zero will also show if the BBU is disconnected and then reconnected. Under optimal conditions, a battery can protect for up to 72 hours. However, with a fresh battery, you may see a higher number in this field. As the battery ages, the backup capacity diminishes. Last Capacity Test. Indicates the date when the last battery test was completed. To test the battery click the Test Battery Capacity link. For details, see "Testing Battery Capacity" on page 157. Battery Installation Date. Indicates when the BBU last detected the battery pack was removed and replaced. www.3ware.com 69