Which of the following are benefits of front-end interconnect (shared) I/O modules? (Multiple choice)

• A.Direct data dispatch to the distributed controller through front-end modules in one engine controller enclosure
• B.Fewer front-end modules and hst links needed
• C.Host path loss prevention in the event of controller failure controller hard/software upgrades, and even single FC link between host and storage
• D.Storage sysadmins are needed to ensure the multipath software is servers runs online before controller upgrades

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The OceanStor OS monitors the response time of I/Os sent to disks. If the time exceeds the threshold, the system quickly responds to hosts through degraded reading of RAID groups. The technique is called

• A.Quick response to slow I/Os
• B.Online diagnostics
• C.Slow disk detection

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Which of the following are application scenarios of disk pre-copy? (Multiple choice)

• A.Failed disk
• B.Risky disk
• C.Slow disk

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To configure HyperMetro for LUNs that are carrying host services, you must first stop the host services.

• A.False
• B.True

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Which of the following RAID levels are supported by Dorado V6? (Multiple choice)

• A.RAID 6
• B.RAID 5
• C.RAID TP
• D.RAID 10

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