Client 1 attempts to read file X from an OceanStor 9000, and node A responds to the read request. Which statements are true about the process of reading file x? (Choose two.)
A. If the system detects that node B has cached file X, client 1 can directly read the file from node B.
B. If the system detects that node B has cached file X, node A can directly read the file from node B.
C. After processing the file read request initiated by client 1, the system retains file X on both node A and node B.
D. If the system detects that node A has cached file X, only data of file X is cached on node A but the parity data is not cached on node A.
Which of the following VMWARE virtual machine scenarios can use VADP backup?
A. The storage is connected directly to the virtual machine, including RDMs, directly to iSCSI or NFS.
B. Virtual machines contain large databases.
C. The virtual machine is deployed in the AIX operating system.
D. Virtual machines contain non-Microsoft family applications.
Which of the following is correct about Huawei OceanStor v3 unified storage system? (Multiple choice.)
A. Standalone SAN engine and stand-alone file engine
B. Parallel dual-stack by way of parallel support (SAN) and file system (NAS)
C. Use unified storage pool technology
D. file system can achieve deduplication data compression function
Using non-deduplication storage based on the disk library strategy, data recovery fails after the data life of the backup has expired. What is a reason for this?
A. Client corresponding partition insufficient space
B. Client One or more simpana services are not started
C. The storage policy checked enable managed disk space for disk library option, leading to the disk's thresholds from the effectively managed disk space.
D. The client is abnormal with cs or MA communication.
In the scenario of protecting the database, the slave uses the virtual snapshot method to verify the services of the production end and the DR-side and discover the data of the DR on the disaster recovery end. What are the possible reasons that the library can not start normally? (Multiple choice.)
A. After a snapshot of the LUN of the redundancy site is created, the snapshot is not activated at the same time.
B. Disaster recovery side of the data stored in the cache, not yet written to the hard disk.
C. When creating a snapshot on the disaster recovery end LUN, the production end is copying data to the disaster recovery end.
D. The production end and disaster recovery end adopt the disaster recovery solution of incremental LUN copy, and the incremental data link is abnormal during the synchronization.
Simpana client failed to the perform backup task. When you view the task status, it reports the following
error: libary mediaagent drive pool media
[]: Mount path is offlline advice: please check if the mount path is online and accessible "
What can cause this?
A. Client offline
B. Media Server Offline
C. The client can not resolve the media server host name
D. backup media failure
Zone change on a FC switch will send the switch to send RSCN to the device in a Zone. Which fabric service is responsible for collecting the status of the fabric change information?
A. Fabric Server
B. Fabric Controller server
C. Name Server
D. Management Server
In Huawei OceanStor 9000, the client that processes the write request performs data fragmentation according to the protection level specified in the file, divides the data chip, writes the corresponding node on power-saving memory, and then calculates the parity of each node data pieces, and writes to each node's power-saving memory. After the node writes the power-save memory, the write operation is successful.
A. True
B. False
Maintenance personnel discovered a storage fault indicator light. You log in to the management interface and found a RAID group failure and replaced the hard disk. In this process, the maintenance personnel used the following basic troubleshooting methods:
A. Logical reasoning
B. Phenomenon analysis method
C. Replacement method
D. Alarm Information Analysis
Which of the following statements regarding the Huawei Oceanstor V3 hierarchical storage and Smart Cache is correct?
A. A client business IO load random read that accounts for more than 60% using SATA, SAS for staging storage, use SSD to do cache, so it will effectively reduce costs and improve random performance indicators
B. If hot spot data is scattered and changing rapidly, it is recommended to use tiered storage
C. If there are many SSDs and hotspots, Smart Cache is the best choice
D. If you have a small amount of SSD data, use a tiered storage disk for more utilization