H13-629

H13-629 practice questions, page 4 of 20, with answer review and explanations.

Question 16

Which of the following VMWARE virtual machine scenarios can use VADP backup?

  1. The storage is connected directly to the virtual machine, including RDMs, directly to iSCSI or NFS.
  2. Virtual machines contain large databases.
  3. The virtual machine is deployed in the AIX operating system.
  4. Virtual machines contain non-Microsoft family applications.

Question 17

Database applications are one of the important applications supporting storage arrays. Storage arrays, operating systems, file systems, and database application systems, etc. Different application configurations and parameter settings may affect the service performance. In order to store arrays (such as OceanStor V3 series storage) with SQL server application with the best performance, which of the following statement is wrong:

  1. OLTP database generally have a large number of random write, it is recommended to choose RAID 10 to store data.
  2. In order to improve write performance, all SQL server database data stored in the LUN write strategy is configured to "write back the image".
  3. Because the size of the SQL server page is 8K, in order to ensure the best performance of the database, NTFS allocated block size should not be less than 8KB.
  4. SQL Server database instance memory size and recovery mode of choice has no effect on the performance of the database.

Question 18

In the OceanStor VIS6600T dual-redundant switch network environment, using OceanStor Toolkit inspection found that "multi-path state detection "does not pass the inspection report, it is found that there are two routes in the 4 paths of the VIS6600T device's 0 node to each LUN of the array. The path status is disabled. According to the analysis, the switch port connected to port 0 of port A0 of node 0 on node 0 of the VIS6600T is visible on the optical switch. The received optical power is much lower than the rated power of the optical module. What repair strategy of the fault contains the error?

  1. Replacing the optical module of port 0 in slot A0 of node 0.
  2. Replacing the light of the P0 port in the A0 slot of 0 node.
  3. Replacing the optical module of the port connected to port 0 of the corresponding 0-node A0 slot on the switch.
  4. Reseat the FC interface card corresponding to slot 0 of node A0.

Question 19

What commands are installed there for viewing SCSI controller information on Linux systems with Qlogic HBAs?

  1. lspci | grep SCSI
  2. cat / proc / scsi / scsi
  3. cat / proc / scsi / qla2300 / 1 | grep port
  4. lspci | grep Ethernet

Question 20

Maintaining a persistent connection between host and storage, ESXi must support multipathing. Please check out Incorrect description multipathing for VMware vSphere 5.5

  1. In addition to path failover, multipathing also provides load balancing. Load balancing is the process of distributing I / O load across multiple physical paths.
  2. In the event of a path failover, the virtual machine I / O delays Nintendo pump by 60s.
  3. If the failover takes a long time to complete, the windows virtual machine may interrupt the I / O and eventually fail. To avoid this problem barrier, please set windows virtual machine according to the timeout to at least 30 seconds.
  4. When coordinating vmware NMP and any third-party MPP installed, the PSA (Pluggable Storage Architecture) performs load and unload multipathing plug-ins;