In the Huawei storage system using RAID2.0+ technology, regarding the difference between Thick LUN and Thin LUN, the following Which description is correct? (Multiple choices)

• A.Allocate storage capacity when Thick LUN is created
• B.The storage capacity is not allocated by default when the Thin LUN is created, and the storage capacity is allocated when data is written
• C.Thin LUN is more flexible than Thick LUN, and has better performance during sequential read and write of large IO
• D.Thin LUN makes the entire storage space utilization rate higher

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HA (High Availability) refers to the ability to continue to access applications in the event of a single component failure in the local system. In a data center, the downtime is one hour a year, so what is the HA of the data center?

• A.0.99999
• B.0.9998858
• C.0.999999
• D.0.998934

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Which command is used to query the version of a Red Hat Linux 5 operating system?

• A.uname -a
• B.find version
• C.cat version
• D.show version

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The dual-controller storage system generally contains a mirror channel, and data written to the storage system cache will be written through the mirror channel Into the peer controller.

• A.TRUE
• B.FALSE

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The SCSI protocol is the basic protocol for host and disk communication. It is operated by the SCSI controller, the controller is equivalent For a small CPU, it has its own command set and cache.

• A.TRUE
• B.FALSE

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