H13-629 : HCIE-Storage : Part 01
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A hospital bought a Huawei OceanStor 9000V100R001C30 storage device for storing business data. According to the relevant laws and regulations, which of the following descriptions of data loss prevention is wrong?:
- The engineer has set the WORM root directory according to the hospital’s requirements, and all the subdirectories under this directory have the WORM attribute.
- During the file protection period, no one can delete the protected file.
- Protected Documents are Protected for a Period of 70 Years on Huawei OceanStor 9000 Storage Device.
- WORM log save root, quota and WORM protection period cannot be set.
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Choose the correct statement regarding the N8000 clustered NAS system that provides file system sharing services, surface VxFS file system, and roll features. (Choose two.)
- VxFS is a non-log file system that can support more than 2T files.
- File system snapshot using copy-on-write (copy-on-write technology) and other files together, share partition or volume storage space.
- Provide file system-level snapshots, copy.
- File System Snapshots, Scenarios, Replication, etc. Features are based on Storage Checkpoint.
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True or False, In an OceanStor V3 system storage array, all the snapshots of a LUN occupy no more space than the LUN.
- True
- False
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True or False, with a client using the SMB 1.0 / 2.0 / 2.1 / 3.0 protocol to perform file replication inside a Huawei OceanStor 9000, it does not need to pass through the client, but can be done directly to the system.
- True
- False
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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.)
- If the system detects that node B has cached file X, client 1 can directly read the file from node B.
- If the system detects that node B has cached file X, node A can directly read the file from node B.
- After processing the file read request initiated by client 1, the system retains file X on both node A and node B.
- 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.
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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?
- SQL Server Authentication
- Windows authentication
- When login as a super user
- Others
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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.)
- 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.
- The signal cables are long and need to be strapped to the cabinet or placed on the bottom tray.
- 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.
- 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.
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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.)
- The automatically created Asynchronous Remote Copy snapshot can either be a private quick pick or a public one.
- In a DR scenario, it is recommended to create a virtual snapshot of the secondary LUN and map it to the host for access.
- In remote replication link networking, parallel networking is better than crossover networking.
- 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.
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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?
- Restart the NFS server of the N8500
- Restart the client’s NFS service
- Reseat the NFS client network cable
- Forcibly unmount the NFS client mount point and mount it again
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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?
- 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.
- 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.
- 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.
- Nolock, if there is a shared file between NFS clients, you can use this parameter. Reduce service-side file lock overhead.
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In Simpana software, incremental backup means:
- The data that has changed since the last backup.
- The data that has been changed since the last full backup.
- The completion of all data backup.
- After the initial backup, all data has back up.
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Which of the following statements are true regarding HUAWEI OceanStor 18000 Engine, SVP, Disk Enclosure, and PCI-e Switch Interconnections?
- 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.
- 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.
- Huawei slot 0 and slot 5 of the OceanStor 18000 engine enclosure can be used to install SAS interface modules and interconnect disk enclosures.
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There are multiple types of disks in a hard disk domain in the OceanStor V3 storage system. If you add one SAS disk to the hard disk domain, the topology will be load balanced as which of the following?
- Tier 0 disks perform data equalization.
- All disks in the entire hard disk domain will participate in data equalization.
- The CK of the target CKG will be released after data equalization is completed.
- OCeanstor V3 enables cross-engine data equalization.
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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.
- True
- False
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When planning an OceanStore Unified Storage Array synchronization remote replication, which of the following description is correct. (Multiple choice.)
- In the scenario where the actual RPO indicator requires zero, you can choose to synchronize remote replication.
- 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.
- Synchronous remote replication on the remote disaster recovery can be well done.
- 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.
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Which of the following VMWARE virtual machine scenarios can use VADP backup?
- The storage is connected directly to the virtual machine, including RDMs, directly to iSCSI or NFS.
- Virtual machines contain large databases.
- The virtual machine is deployed in the AIX operating system.
- Virtual machines contain non-Microsoft family applications.
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Database applications are one of the important applications supporting storage arrays.
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 applications with the best performance, which of the following statements is wrong:
- OLTP database generally have a large number of random write, it is recommended to choose RAID 10 to store data.
- In order to improve write performance, all SQL server database data stored in the LUN write strategy is configured to “write back the image”.
- 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.
- SQL Server database instance memory size and recovery mode of choice has no effect on the performance of the database.
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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 actions should be taken to fix this?
- Replacing the optical module of port 0 in slot A0 of node 0.
- Replacing the light of the P0 port in the A0 slot of 0 node.
- Replacing the optical module of the port connected to port 0 of the corresponding 0-node A0 slot on the switch.
- Reseat the FC interface card corresponding to slot 0 of node A0.
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What commands are used for viewing SCSI controller information on Linux systems with Qlogic HBAs?
- lspci | grep SCSI
- cat / proc / scsi / scsi
- cat / proc / scsi / qla2300 / 1 | grep port
- lspci | grep Ethernet
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Maintaining a persistent connection between host and storage, ESXi must support multipathing. Which of the following statements is incorrect regarding multipathing for VMware vSphere 5.5?
- In addition to path failover, multipathing also provides load balancing. Load balancing is the process of distributing I / O load across multiple physical paths.
- In the event of a path failover, the virtual machine I / O delays Nintendo pump by 60s.
- If the failover takes a long time to complete, the windows virtual machine may interrupt the I / O and eventually fail. To avoid this, set the windows virtual machine timeout to at least 30 seconds.
- When coordinating vmware NMP and any installed third-party MPP, the PSA (Pluggable Storage Architecture) performs load and unload multipathing plug-ins and handles physical path discovery and removal.
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