For N800 V200R001, you can log in to the storage system using the support account and run fsck -t vxfs -o full -y /dev/vx/dsk/sfsdg/fs001 to implement full verification for the fs00l file system.
A. True
B. False
Which of the following is an unstructured data application?
A. ERP
B. HIS database
C. Education VoD
D. Enterprise financial system
Hadoop is an open-source software framework for distributed processing of massive data. Hadoop has performance and cost advantages in terms of unstructured data processing.
A. True
B. False
Which of the following statements about the DST feature of an N8500 clustered NAS system are incorrect? (Select three)
A. DST involves three tiers.
B. Each tier can contain many volumes.
C. All files are initially stored on tier 1.
D. The location where metadata is stored cannot be manually specified.
In Linux, the iostat command is run and the following output is displayed: # iostat Linux 2.6.9-8.11.EVAL (ts3-150,ts.cn.tlan)02/01/2014 avg-cpu: %user%nice%sys %iowait%idle 12.010.002.152.3083,54 Device: tpsBlk_read/sBlk_wrtn/sBlk_readBlk_wrtn hda7.13200.1234.73640119111076
Which of the following statements are correct? (Select two.)
A. The CPU usage of I/O wait is 2.3%.
B. The number of I/O requests sent per second is 7.13.
C. The number of blocks read per second is 640119.
D. The CPU usage of application operation is 2,15%.
An NS500 clustered NIAS system provides file system sharing. Which of the following statements about the N8500's file system mechanism and related features are correct? (Select three)
A. The N8500 clustered file system VxFS is not a log file system, and it supports a capacity of over 2 TB.
B. The file system snapshot feature employs the copy-on-write mechanism and shares the storage space of partitions or volumes with other file sets.
C. The snapshots provided by the N8500 are based on the file system level.
D. File system snapshot, mirroring, and replication are implemented based on storage checkpoints.
Which of the following are considered when planning the deployment of an N8000 clustered NAS storage system? (Select three.)
A. Evenly distribute service loads among all cluster nodes, Employ port bonding to increase network bandwidths and enhance protection capability.
B. Plan the types of file systems for the storage system based on the performance and data integrity requirements of customers' environments.
C. Plan various RAID groups for the storage system to address the data integrity and read/write performance requirements of different application scenarios.
D. Select operating systems based on application requirements.
Which of the following statements about the principle of the file system snapshot feature provided by an N8500 clustered NAS system are correct? (Select two)
A. When a snapshot is created, a block mapping pointing to the data on the file system is generated.
B. If an original data block needs to be replaced for the first time, the new data block is copied to the snapshot reservation area.
C. If an original data block is replaced for the first time, the block mapping in the snapshot points to the data block in the snapshot reservation area.
D. If a data block that has replaced an original data block needs to be replaced by a new data block, the new data block is copied to the snapshot reservation area.
Typically, how many storage units can be configured for a 4-node N8500 to implement direct- connection networking?
A. 1
B. 2
C. 3
D. 4
On Huawei N8500 V200R001, gabconfig -a can be executed to query the port communication status of a GAB member in a cluster. Port h gen is the communication port of which member?
A. CFS
B. VCS
C. CVM
D. Heartbeat membership
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