3Ware 3W-6800 User Guide - Page 147
Specifying a hot spare, Auto rebuild of a mirrored array
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Mirrored Array Maintenance Specifying a hot spare Escalade Storage Switches give you the option to specify a hot spare from one of your available drives. Hot spares should be selected after mirror creation. Refer to Creating a disk array in the 3ware Disk Array Configuration Utility chapter. To specify a hot spare after the system is booted, physically add the spare drive and click on the check box next to the available port; then click on the Add Spare button. Note: Hot spare drives must be equal to or larger than the drives used for the redundant array. Auto rebuild of a mirrored array If a hot spare is specified and the mirror degrades, an event notification is generated and the hot spare dynamically replaces the failed drive in a mirrored array without user intervention. Rebuild will automatically be launched as background process and an event notification will notify the user when the rebuild process is complete. Rebuilding a redundant array with a hot swap drive Hot swap allows a user to replace a failed drive in a redundant array while the system remains up. Hot swap can be used when 24x7 system operation is a consideration. If multiple drives are faulted in a RAID 10 configuration, you must rebuild the drives sequentially by port number starting with the lowest port number. 1 Click on the check box of the failed drive. 2 Click the Remove Drive button. www.3ware.com 137