3Ware 9550SXU-16ML User Guide - Page 35
Specifying a Hot Spare, Available Drives
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Specifying a Hot Spare Trade-offs to cancelling initialization: RAID configurations that begin initialization automatically will not be fault tolerant until initialization is complete. Performance of these units will be lower until initialization is complete. When initializing is done after booting to the operating system, the process of initializing takes longer than it does if initialization is done by writing zeroes to the unit in the BIOS. Consequently, it will be a longer period of time until the performance of the unit is fully optimal. Data remains intact when initialization is done in the operating system. For complete information about initialization of RAID units, see "About Initialization" on page 169. Specifying a Hot Spare You can designate one of the Available Drives as a hot spare in 3BM. If a hot spare is specified and a redundant unit degrades, an event notification will be generated. The hot spare will automatically replace the failed drive without user intervention. To specify a hot spare 1 In the list of Available Drives, highlight the drive to use. 2 Type s to specify that the selected drive will be the hot spare. You'll see the words "Hot Spare" appear next to the drive in the Available Drives list. Figure 13. Hot Spare Indicated www.3ware.com 25