H13-629 : HCIE-Storage : Part 04
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What are the recovery mode drills of the Huawei Replication Director disaster recovery?(Multiple choice.)
- Planned Migration
- Failover
- Business Recovery
- fault recovery
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Which of the following feature is correct about the OceanStor V3 volume mirroring? (Multiple choice.)
- After creating a mirrored volume for a normal LUN, the server read-write IO results in a change as a result of internal information exchange.
- The amount of data actually stored on a LUN is 2G, the total copy of the data is 4G. A volume image is created for the LUN, the LUN is mirrored when the copy is generated during system creation.
- You can configure a volume mirror for external LUNs or configure external LUNs as mirror copies.
- When configuring volume mirroring, mirror copies are required from different disk domains.
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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?
- Client corresponding partition insufficient space
- Client One or more simpana services are not started
- The storage policy checked enable managed disk space for disk library option, leading to the disk’s thresholds from the effectively managed disk space.
- The client is abnormal with cs or MA communication.
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What are the design information research activities in a backup solution? (Multiple choice.)
- Customer needs collection and refining
- Backup capacity calculation
- Project background research
- Network environment is collected
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What are the ways of load balancing cluster softwar on Oracle rac? (Multiple choice.)
- Client Balance
- Cluster nodes balanced
- Service layer balance
- Instance load
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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.)
- After a snapshot of the LUN of the redundancy site is created, the snapshot is not activated at the same time.
- Disaster recovery side of the data stored in the cache, not yet written to the hard disk.
- When creating a snapshot on the disaster recovery end LUN, the production end is copying data to the disaster recovery end.
- 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.
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The OceanStor V3 storage system has 96 hard disks in one hard disk domain. To maximize the performance of the hard disk, it is recommended to use the LUNs in the hard disk domain.The total number of hard disks is not less than:
- 96
- 4
- 32
- 12
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Which of the following statements about multi-plane system design of the Huawei Oceanstor unified storage system is correct?
- The service plane uses GE channels for data transmission.
- The service plane connects the host IO channel, disk IO channel and GE switching channel.
- Plane redundancy between each other, when the business plane fails, allowing the use of control plane transmission services.
- When the GE switch channel fails, you can use the PCIe switch channel as a backup data transmission channel.
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In the simpana-based backup solution, where can you the normal service log?
- CVMA. log
- CVNetcheck. log
- CVService. log
- CVD. Log
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Which of the following statement about RAID 2.0 is correct? (Multiple choice.)
- The hard disk is divided into chunks.
- Lun consists of extend or grain
- A CKG chunk may come from the same hard disk.
- Chunk in a CKG may come from a different storage pool.
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True or False, the Huawei Oceanstor backup solution integration program is one machine.
- True
- False
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In a Huawei OceanStor 18000 the engine, SVP, disk enclosure, and PCIe switch interconnections must be in accordance with certain rules and order. Which of the following statement is incorrect?
- The SVP needs to connect multiple engines through two PCI-e switches, and each engine’s controller needs to be connected to a PCIe switch to ensure that the link redundancy provides reliability.
- When the control plane is connected to the network, when the engine and the PCIe switch are interconnected, the port P0 of the A3 slot and the PCI switch PCI port can be used pick up.
- Huawei OceanStor 18000 can be used to install SAS interface modules and interconnect disk enclosures in slot 0 and slot 5 of the Huawei OceanStor 18000.
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Assuming a site data volume of 600GB, A, B site replication bandwidth between 40% of GE network resources, and asynchronous remote replication synchronization. If the synchronization time is 180 minutes and begins at 9:00 AM, when will the next synchronization start?
- 10:25
- 12:00
- 15:00
- 15:20
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True or False, in an OceanStor V3 series storage array, all the snapshots of a LUN occupy not more space than that of the LUN.
- True
- False
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In order to verify the consistency of the slave LUN data with the source data and to protect slave LUN data, which of the following descriptions is incorrect:
- Create a virtual snapshot of the slave LUN and activate it, then map the snapshot LUN to the host for authentication.
- After the snapshot LUN is mapped to the host, the host can read and write the snapshot LUN.
- After the verification is completed, stop the upper-layer service application, release the LUN mapping, and finally delete the snapshot.
- Stop the snapshot before the host can write snapshot LUN.
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During the migration of SAN storage by LVM from AIX, the data migration designer is in a very important stage. Prior to accessing new devices, there are a number of issues that needs to be considered to help with data migration design, including: (Multiple choice.)
- This device can not / should not be connected to an existing SAN.
- AIX system how to connect to the new storage device.
- How AIX systems and data can be migrated from the old disk to the new disk.
- The format of the file system, whether the file group is compatible with the new device volume.
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Which of the following describes the correct process of disaster recovery and Huawei disaster recovery solution?
- The disaster recovery side to create a snapshot
Map the snapshot to the disaster recovery host
Disaster Recovery Host scans the disk
Start disaster recovery application
Test disaster recovery applications - Forcibly switch the replication relationship
Map lun
Start disaster recovery application
Test application started successfully
Resume production business - Stop production application and dismiss the host mapping
Switch the replication relationship
Map lun
Start disaster recovery application
Test application started successfully - Release the host mapping
Switch the replication relationship
Map lun
Start disaster recovery application
Test application started successfully
- The disaster recovery side to create a snapshot
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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?
- Client offline
- Media Server Offline
- The client can not resolve the media server host name
- backup media failure
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In simpana backup software, incremental backup means _______.
- The data that has changed since the last backup is backed up.
- Changed data backup since last full backup.
- Full backup of all data.
- After the initial backup data backup of all data.
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True or False, With Simpana remote deduplication, when the data is transferred from the source to the target, the source of the data block is transmitted with first hash ratio. There is no need to transfer any data if the block was previously transmitted.
- True
- False
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