Feature
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Description
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RAID Levels
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0, 1, 1+0, 3, 5, 10, 30, and 50. Enhanced RAID levels supported (with logical volume implementation).
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Maximum Number of Logical Drives
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32
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Raid Level Dependency to Each Logical Drive
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Independent. Logical drive configured in different RAID levels can coexist in an array.
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Logical Drive Identification
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Unique, controller-generated logical drive ID; logical drive name is user-configurable.
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Maximum Number of LUNs per Host ID
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Up to 32, user-configurable.
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Concurrent I/O
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Supported.
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Tag Command Queuing
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Supported.
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Dedicated Spare Drive
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Supported; defined as the spare drive specifically assigned to a logical drive.
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Global Spare Drive
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Supported; the spare drive is available for all logical drives.
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Auto-Rebuild Onto Spare Drive
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Supported.
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Auto-Scan of Replacement Drive Upon Manually Initiated Rebuild
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Supported.
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One-Step Rebuild Onto Replacement Drive
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Supported.
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Auto-Rebuild Onto Failed Drive Replacement
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Supported. With no spare drive assigned, the controller auto-scans the failed drive and starts to rebuild automatically once the failed drive has been replaced.
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Auto Recovery From Logical Drive Failure
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Supported. When a user accidentally removes the wrong drive to cause the second drive failure of a one-drive-failed RAID 5 or RAID 3 logical drive, switches off the controller, puts the drive back, and powers on the controller. The logical drive is restored to one-drive-failed status.
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