HP AD510A HP StorageWorks 1500 Modular Smart Array maintenance and service gui - Page 68
component. For example, hot-adding or replacing a controller while under heavy I/O may cause
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CAUTION: To properly ventilate the system, you must provide at least 7.6 centimeters (3.0 inches) of clearance at the front and back of the device. CAUTION: When removing or replacing a failed component, allow 30 seconds to pass before inserting a replacement component. This time is needed to allow the device to clear out the system registries. CAUTION: Schedule physical configuration changes during periods of low or no activity. If the system is performing rebuilds, RAID migrations, array expansions LUN expansions, or experiencing heavy I/O, avoid physical configuration changes such as adding or replacing hard drives or hot-plugging a controller or any other component. For example, hot-adding or replacing a controller while under heavy I/O may cause a momentary pause, performance decrease, or lass of access to the MSA while the new controller is starting up. When the controller completes the startup process, full functionality is restored. CAUTION: Before replacing a hot-pluggable component, ensure that steps have been taken to prevent loss of data. 68 Customer replaceable components