Due to business needs, when a reboot operation is performed on a VTL6900 (including the VTL engine, SIR engine, storage unit, and optical switch) whichdescription is correct? (Multiple choice)
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Power off the VTL6900 as a whole without any special requirements
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Restart the device according to the following restart sequence:VTL engine restartedSIR engine restartFiber Channel switch and storage unit restart
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restart the device as follows to restart the device:SIR engine restartVTL engine restartedFiber Channel switch and storage unit restart
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If the VTL engine is configured for A and B two-node clusters, suspend the VTL failover and then restart theVTL engines A and B in turnAfter all the two nodes of A and B are normally started, restore the VTL failover