In Huawei OceanStor 9000, the CA that processes write requests divides data into strips based on the protection level and writes data strips into non-volatile dual in-line memory modules (NVDIMMs) if the corresponding nodes. Then these nodes calculate and write parity strips into their NVDIMMs. After all these nodes have successfully written parity strips, the write operation is successful.
A. TRUE
B. FALSE
In an OceanStor V3 storage system, a disk domain has multiple types of disks. If one SAS disk is added to the disk domain, all disks of the disk domain will participate in data balancing.
A. TRUE
B. FALSE
OceanStor 18500 uses RAID 2.0+ virtualization architecture. Which statement is false about planning and configuring storage with RAID 2.0+?
A. Both thick and thin LUNs can be created in the same storage pool.
B. If the performance tier of a storage pool uses the 8D+1P RAID policy, the owning disk domain of the storage pool must have at least 9 SAS disks.
C. The hot spare space of a storage pool comes from each member disk of the storage pool.
D. A storage pool can have three storage tiers, and each tier can have more than one RAID policy.
Which network connection is wrong for an OceanStor 18000 expansion network?
A.
B.
C.
D.
When cache mirroring is enabled for the two controllers of an OceanStor V3 storage system, the two controllers have identical cache data and the failure of either controller does not affect system services.
A. TRUE
B. FALSE
Which statements are false about the file system quota feature of OceanStor V3? (Multiple Choice)
A. A quota tree can be shared using a protocol. In addition, a quota tree that is being shared cannot be renamed or deleted.
B. You can move files (NFS protocol) or cut files (CIFS protocol) across quota trees.
C. A hard link cannot be established between two different quota trees.
D. An administrator can delete non-empty quota trees through CLI or GUI.
Which statements are true about Huawei OceanStor V3 WORM feature? (Multiple Choice)
A. When a file is in the locked state, the file protection duration can be manually prolonged or shortened.
B. A locked file will shift to the expired state if the file system WORM clock value is greater than the file atime value.
C. After the WORM file system compliance clock has exceeded the file expiration time, an appending file will shift from the appending state to the expired state.
D. Only files of 0 byte can shift from the locked state to the appending state.
To use the storage space of OceanStor V3 more efficiently, a customer has specified file system quotas for
different departments. If a soft quota alarm is generated for the file system used by department A, which
methods can be used to clear the alarm and ensure that new data can be successfully written?
(Multiple Choice)
A. Delete the files that department A does not need to use.
B. Enable SmartDeduplication for the file system used by department A.
C. Expand the file system quota for department A.
D. Enable SmartCompression for the file system used by department A.
Enable SmartMigration on OceanStor V3 and start a migration task with SmartMigration. Before migration, suppose the LUN ID and the data volume ID of the source LUN are 1 and 2 respectively while the LUN ID and the data volume ID of the destination LUN are 3 and 4 respectively, what are they after migration?
A. Source LUN: 1 and 3 Destination LUN: 2 and 4
B. Source LUN: 1 and 4 Destination LUN: 3 and 2
C. Source LUN: 3 and 1 Destination LUN: 4 and 2
D. Source LUN: 2 and 4 Destination LUN: 1 and 3
In terms of using the file system snapshot feature of OceanStor V3, a user who wants to access snapshot data must mount the file system snapshot.
A. TRUE
B. FALSE
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