Adaptec 3210S User Guide - Page 101

Managing Controllers To rescan the controller's channels: 1 In the System Browser window, select the controller you want to rescan. 2 Click Rescan. Storage Manager Pro rescans the controller channels and updates the System Browser window with the devices currently attached to the channels. Note: If your operating system is Linux, your system may freeze for about ten seconds before you can resume keyboard and mouse functions. Reconditioning the Battery If your controller has a battery, the battery preserves the contents of the cache memory in the event of a power loss. Power loss can occur due to a sudden interruption of power to the system or whenever the system is powered down for maintenance and upgrade tasks. Refer to your controller's documentation for information about how long your data is protected (holdover time). The holdover time depends on the battery's charge level. You can recondition the battery to ensure that the battery's capacity is being measured correctly and that the battery's full holdover time is maintained. During the reconditioning cycle, which takes approximately 8 to 10 hours, the battery's holdover time is reduced to zero (during discharge) and then restored (during full charge). To ensure that no data is lost from nonvolatile cache memory, the controller automatically disables the write cache during a reconditioning cycle. When the cache is disabled, performance is degraded for the reconditioning period. Once the reconditioning cycle is complete, the cache is restored to its original settings. At some point the battery may not recharge properly and will need to be replaced. Refer to your controller's Installation Guide for more information. You should recondition the battery when optimal performance is not needed. 9-3