Regarding the description of the NFS protocol, which is wrong?

• A.It is very convenient for users to share through the CZFS protocol to read, write, author and operate files stored in the storage system just like using this machine.
• B.Also known as SMB (server message Block) has been released in multiple versions, such as SMB 1.0, SMB 2.0, SMB 3.0, so it needs version matching when using
• C.CIFS adopts the B/S architecture model, so the administrator needs to confirm the browsing version when performing attachments.
• D.The supported authentication methods are NILMKberos

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Statement 1: There is an interconnection line between the controllers of the storage system. If one of the controllers is broken, the working controller belonging to the LUN managed by it will be switched to a working controller.
Statement 2: The working controller and the owning controller of a LUN must be unified into one controller.

• A.Statement 1 is wrong, Statement 2 is correct.
• B.Statement 1 is correct, Statement 2 is wrong.
• C.Statement 1 is correct, Statement 2 is correct.
• D.Statement 1 is wrong, Statement 2 is wrong.

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Statement 1: The file system of SAN storage is deployed on the storage side, and the file system of NAS storage is on the host side.
Statement 2: Dynamic hierarchical storage can realize data migration between storage media with different performance

• A.Statement 1 is wrong, Statement 2 is wrong
• B.Statement 1 is wrong, Statement 2 is correct
• C.Statement 1 is correct, Statement 2 is correct
• D.Statement 1 is correct, Statement 2 is wrong

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Regarding the snapshot technology, which of the following statement is incorrect?

• A.When manually creating a snapshot for a file system, if the product specification limit is exceeded, a new snapshot cannot be created for the file system
• B.When rolling back a file system snapshot, you must cancel the shared mount of the source file system
• C.When creating a periodic snapshot for the file system, the storage system automatically deletes the earliest created snapshot and automatically generates a new snapshot
• D.After opening multiple snapshots of the same file system, roll back to one of the snapshots. After the roll-back is completed, all snapshots after the point-in-time when the target snapshot was created will be deleted

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After the all-flash device (for example: Huawei Oceanstor) is configured for remote replication, the slave lun can be set to the p-writable state, which can be done before the master-slave switchover or after the master-slave switchover.

• A.False
• B.True

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