True or False, Info Replicator supports copying the data at the same time. The basic attributes of the home directory, extended attributes, ACL (access control list). WORM (write-once-read-many) and CIFS / NFS share configuration information is known as a wealth island from the end. When a disaster occurs, master and slave sites can quickly take over the business after the switch.
A. True
B. False
When planning an OceanStore Unified Storage Array synchronization remote replication, which of the following description is correct. (Multiple choice.)
A. In the scenario where the actual RPO indicator requires zero, you can choose to synchronize remote replication.
B. Synchronous remote replication can be used to map the main and secondary storage of the two sets of LUN mapping to the host to create a scenario volume.
C. Synchronous remote replication on the remote disaster recovery can be well done.
D. Because synchronous remote replication does not use snapshots, after synchronous remote replication is interrupted abnormally, the data on the primary LUN needs to be resumed in reply. Start synchronization to the slave site.
In Simpana software, incremental backup means:
A. The data that has changed since the last backup.
B. The data that has been changed since the last full backup.
C. The completion of all data backup.
D. After the initial backup, all data has back up.
Which of the following statements are true regarding HUAWEI OceanStor 18000 Engine, SVP, Disk Enclosure, and PCI-e Switch Interconnections?
A. SVP needs to be connected to multiple engines through two PCIe switches, and each engine controller needs to be connected to a PCIe switch to ensure that link redundancy and to improve reliability.
B. When the control plane is connected to a network, when the engine and the PCI-e switch are interconnected, the port 0, port A3 and PCIe port can be interconnected.
C. Huawei slot 0 and slot 5 of the OceanStor 18000 engine enclosure can be used to install SAS interface modules and interconnect disk enclosures.
Huawei Standard Edition N8500 has two nodes named Pubeth1 and Pubeth4. It opened the NFS service. NFS server accepts recovery after NFS guest. However, the client mount point can not be accessed into the directory for a long time without echo. What do you need to do to fix it?
A. Restart the NFS server of the N8500
B. Restart the client's NFS service
C. Reseat the NFS client network cable
D. Forcibly unmount the NFS client mount point and mount it again
A Huawei OceanStor 9000 is externally shared using NFS and CIFS at the moment.
You want to set some parameters to improve the performance of the NFS mounted under the Linux
operating system. Which of the following description is correct?
A. Rsize / wsize, read and write the maximum size of each block, it is recommended to adjust to the maximum. General Linux operating system environment, the maximum value of 1M.
B. Async, allowing asynchronous data write, synchronous write requirements. NFS server must brush each data into the hard disk before it can return success delay higher.
C. Noatime, if you do not need to record the file access time, you can increase this parameter to avoid frequent access, modify the access time to open pin.
D. Nolock, if there is a shared file between NFS clients, you can use this parameter. Reduce service-side file lock overhead.
An Engineer installed a OceanStor 9000 for a customer (a total of 5 OceanStor 9000 C Node, front and rear ends are 10GE TOE networking, on-site installation TOE network card). Then connected the signal lines, power lines, and debugged the software. During the installation there were issues. Which of the following description of these issues are correct? (Multiple choice.)
A. 5 devices TOE NIC A0, B1, and A0, B3 inserted into the PCIe slot will not affect the system. Deployment will not affect the network bandwidth, so it cannot be adjusted.
B. The signal cables are long and need to be strapped to the cabinet or placed on the bottom tray.
C. Label NODE 01 A0-0 The signal cable is inserted in the network port A0-1. The signal cable labeled NODE01 B3-1 is inserted in the network position B3-0, due to the same network card two network port peer, you can place the wrong line, you cannot adjust.
D. CE6850 switch connected to two stacked copper cables, one of which is needed to post-cold more cold, because it does not affect the network interoperability. You can base this software debugging.
A customer deploys a set of OceanStor V3 storage in two cities and adopts asynchronous remote replication networking between the two storage arrays. Which of the following statement is correct? (Multiple choice.)
A. The automatically created Asynchronous Remote Copy snapshot can either be a private quick pick or a public one.
B. In a DR scenario, it is recommended to create a virtual snapshot of the secondary LUN and map it to the host for access.
C. In remote replication link networking, parallel networking is better than crossover networking.
D. The number of LUNs in the consistency group should be as small as possible, and only the LUNs that have write dependencies on the same application are placed in a consistency group.
For SQL Server 2005 and 2008, user can connect to the database engine of a specified server through the SQL Server Management Studio tool. Which kind of connection authentication requires the user ID and password for login while connecting the database through the client application?
A. SQL Server Authentication
B. Windows authentication
C. When login as a super user
D. Others
True or False, In an OceanStor V3 system storage array, all the snapshots of a LUN occupy no more space than the LUN.
A. True
B. False
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