Lenovo ThinkServer RD240 MegaRAID SAS Software User Guide - Page 287
Adding Hot Spare Drives, drives in a RAID 1, RAID 5, or RAID 60
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Note: Start a consistency check immediately after the rebuild is complete to ensure data integrity for the virtual drives. See Section 10.2, "Running a Consistency Check," for more information about checking data consistency. 2. Scenario #2: If some of the drives in a configuration are removed and re-inserted, the controller considers the drives to have foreign configurations. Import or clear the foreign configuration. If you select Import, automatic rebuilds will occur in redundant virtual drives. Note: Start a consistency check immediately after the rebuild is complete to ensure data integrity for the virtual drives. See Section 10.2, "Running a Consistency Check," for more information about checking data consistency. 3. Scenario #3: If all of the drives in a virtual drive are removed, but at different times, and re-inserted, the controller considers the drives to have foreign configurations. Import or clear the foreign configuration. If you select Import, all drives that were pulled before the virtual drive became offline will be imported and then automatically rebuilt. Automatic rebuilds will occur in redundant virtual drives. 4. Scenario #4: If the drives in a non-redundant virtual drive are removed, the controller considers the drives to have foreign configurations. Import or clear the foreign configuration. No rebuilds will occur after the import operation because there is no redundant data to rebuild the drives with. 8.3 Adding Hot Spare Drives Hot spares are drives that are available to automatically replace failed drives in a RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, or RAID 60 virtual drive. Dedicated hot spares can be used to replace failed drives in a selected drive group only. Global hot spares are available to any virtual drive on a specific controller. To add a dedicated or global hot spare drive, follow these steps: Adding Hot Spare Drives 8-35
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