Promise Vess A2600 Product Manual page 77

Product Manual
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eBUild ettings
To change Rebuild setting the in Background Activities Settings menu:
1. Use the Rebuild Rate drop-down menu to choose a rate:
• Low – Fewer system resources to the Rebuild, more to data read/write operations.
• Medium – Balances system resources between the
Rebuild and data read/write operations.
• High – More system resources to the Rebuild, fewer to data read/write operations.
2. To enable Auto Rebuild (rebuilds when you swap out the failed drive with a new one) Check the Enable
Auto Rebuild box.
3. Click the Submit button.
Rebuild Rate
When you rebuild a disk array, you are actually rebuilding the data on one physical drive.
• When a physical drive in a disk array fails and a spare drive of adequate capacity is available, the disk array
begins to rebuild automatically using the spare drive.
• If there is no spare drive of adequate capacity, but the Auto Rebuild function is ENABLED, the disk array
begins to rebuild automatically as soon as you remove the failed physical drive and install an unconfigured
physical drive in the same slot.
• If there is no spare drive of adequate capacity and the Auto Rebuild function is DISABLED, you must
replace the failed drive with an unconfigured physical drive, then perform a Manual Rebuild.
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AckgroUnd ynchronizAtion
Synchronization is automatically applied to redundant logical drives when they are created. Synchronization
recalculates the redundancy data to ensure that the working data on the physical drives is properly in sync.
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