You have to perform a firmware update containing new code for DKCMain, CHBs and drives on a VSP G900.
What are two requirements? (Choose two.)

• A.The CHBs must be updated first.
• B.The Cache Write Pending rate should be below 30%.
• C.The Microprocessor utilization should be below 50%.
• D.There should be no sparing processes running in the background.

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A failed SSD on a VSP One B24 has to be replaced. The drive is currently in "block" status.
In this scenario, which two statements are correct? (Choose two.)

• A.The Maintenance Utility must be used to prevent any access to the drive
• B.Use the Maintenance Utility to complete the alerts after the replacement
• C.This should be done by an Hitachi service representative or an authorized partner
• D.First, use VSP One Block Administrator to disable Dynamic Drive Protection (DDP)

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You have to perform a firmware update on a VSP One B24 system.
What are two prerequisites? (Choose two.)

• A.There must be no pending SIMs in the VSP
• B.Half of the VSP front-end ports must be taken offline
• C.There must not be any pinned data in the VSP cache
• D.You need a 16GB USB drive to extract the ISO microcode file

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Which two mechanisms are used to maintain redundancy after a disk failure on a VSP Midrange system? (Choose two.)

• A.Correction Copy
• B.Quick Copy
• C.Emergency Destage
• D.Dynamic Sparing

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