H13-629 : HCIE-Storage : Part 06
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In a client application scenario, IO business model for the random read, the IO size is about 100K, and the depth of the storage array LUN stripe set to______.
- 8K
- 16K
- 64K
- 128K
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Which remote replication description about the OceanStor V3 file system is correct? (Multiple choice.)
- The object-based approach to data replication.
- ROW snapshots based on the cyclical manner of data replication.
- The user can trigger manually or system timing synchronization.
- Support dequota quota information of the main file system to the slave, no need for the slave to configure quota.
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Which statement is false about the erasure code N+M redundancy implemented by Huawei OceanStor 9000?
- Different empty directories can be assigned different data protection levels to protect the data that will be stored in these directories.
- Data written to an OceanStor 9000 is first divided into chunks at a size of 4 GB if the data size is larger than 4GB.
- The erasure code algorithm calculates M parity chunks for every N consecutive chunks.
- The utilization rate of storage space under protection is about N/(N+M), and data reliability is determined by M, where a larger value of M results in higher reliability.
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Which of the following statements about the info stamper in an OceanStor 9000 storage system is not correct?
- Oceanstor 9000 uses COW technology for metadata
- Oceanstor 9000 uses ROW technology for data
- Between snapshots of different versions, there is common data between the snapshot and the current year
- According to the snapshot version data objects have a backward dependency, so when reading the snapshot data, according to the object dependencies, the system determines from which object to read.
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Two Huawei N8500 standard nodes opened the CIFS service. Which of the following CIFS parameters allows users to view the other users without seeing the head record?
- oplocks
- noguest
- fs_mode
- hide_unreadable
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In order to support business expansion, a large enterprise has decided to purchase two Huawei OceanStor 9000 storage systems to replace the existing NAS systems. The two systems were deployed in two cities. The main operating system of the business operation time is 8: 00-18: 00. Which of the following description of disaster recovery on disaster recovery applications planning is correct? (Multiple choice.)
- Info replication as an optional feature of Huawei OceanStor 9000de, the production sites and disaster recovery sites need only the production site to purchase info replicator feature of the license
- Plan a separate directory for each type of service using the Huawei OceanStor 9000 system at the D and Y sites in the system’s root directory as a remote copy of the master directory, and shared to the corresponding business server i
- Because the client’s business traffic is mainly concentrated in the daytime working hours, you can not set the replication zone bandwidth limit, the synchronization task on the non-workers make time, take full advantage of node bandwidth
- For each type of business to create a pair for the type of business data replication synchronization
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In the case of the Oceastor VIS6600T with dual switch redundancy networking, log in to the Windows machine connected to the VIS6600T and configure the set of multi-path software Ultrapath control interface to see the number of physical path than the planned network computing path less, the possibility of this phenomenon.
What is the reason for this? (Multiple choice.)
- Host to the optical switch connection is abnormal.
- When configuring the zone on the switch, configure the FC port and the host port that works in the working mode of the VIS6600T as a target in one zone.
- The working mode of the VIS6600T is abnormal because the initiator’s FC port is connected to the optical switch.
- In the working mode of VIS 6600T, the connection between the FC port of the target device and the optical switch is abnormal.
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Which of the following VMware backup network configurations doesn’t fit for backing up data to tape directly (don’t consider FC virtualization)?
- Both VSA and MA are installed on VMs.
- VSA, MA and ISE are installed on physical machines.
- VSA is installed on VM, and the MA is installed on the physical machine.
- Both VSA and MA are installed on physical machine.
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A research unit purchased a Huawei Oceanstor 9000 storage products, the main configuration products: 8 * Oceanstor 9000 C node, the front end 10GE * 2, CE6850 switch * 2, S5700 switch * 1, cables, lighting and other accessories are fully furnished, households communication deployment program, prepared in advance a list of IP planning programs and IP requirements. Which of the following IP address is needed? (Multiple choice.)
- The customer needs to provide 16 IP addresses for Oceanstor 9000 system back-end IP and need to provide a gateway.
- Customers need to provide nine management network IP addresses, of which eight for IPMI management, one for OM management.
- The customer management network must be interoperable with the OceanStor 9000 InfoEqualize DNS IP to access the OceanStor 9000 storage.
- The client needs to provide 49 IP addresses that can interoperate with client applications, 16 for the static front end, 32 for the dynamic front end, 1 for InfoWqualizer DNS IP.
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What is shown in the main group?
- The production system equipment network card occupancy rate is high.
- The production system equipment network card occupancy rate is low.
- The production system equipment CPU occupancy rate.
- The production system equipment CPU occupancy rate is low.
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In a media application scenario, large files is an important application feature. Huawei OceanStor 9000 can allocate different configurations according to different users. This avoids some of the unimportant data transition overhead, which of the following description of the quota is correct?
- The types of quotas include capacity quota and file quota.
- Quota methods include calculating quotas, soft quotas and mandatory quotas.
- The system pre-allocates quotas for files before writing the file. When the user cancels the writing of the file being written, the system does not release a pre-allocated quota.
- When the user continues to write data, the quota information has been used in the InfoAllocator interface real-time updates.
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Set the soft quota and hard quota using the OceanStor V3 file system quota feature. During each IO writing operation, consumption of space capacity, if the number of files exceeds the soft quota is the first to be checked.
- True
- False
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When Replication Director creates a protection group to protect LUNs, you can see that there is no LUN on the interface. Which of the following may be the cause?
- There is a problem with the storage initiator configuration.
- There is a problem with the storage LUN configuration.
- There is a problem with the RD software configuration.
- There is a problem with the remote replication configuration.
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Which of the following description of the infoLocker feature of Huawei’s Ocenastor 9000 is incorrect?
- To prevent changes in the directory or file protection time because of the changes in cluster time, a directory or file is configured with WORM attributes. After the directory or file will use the WORM clock to time, set the WORM clock. When the system will be based on the clock, user’s file will not be modified over the protection period.
- If the cluster time is earlier than the WORM clock, the WORM clock will be chased every hour for up to 138 seconds to adjust. If the cluster is after the WORM clock, the WORM clock adjusts to the cluster time.
- When a directory is configured as a WORM root directory, all subdirectories, new directories and new files in the directory automatically get the parent directory of WORM attributes. These attribute parameters can only be configured when the WORM root directory is set. Only then the user’s view can not be modified.
- WORM logs are used to record the logs related to WORM operations and record them according to the time. The monthly log is a file that can be modified and can delete the file.
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VxVM (veritas volume manager) in the N8500 clustered NAS system is located between the operating system and the data management system. The operating system provides an excuse service to access the disk, the physical storage device connected to the host and the level of the data management system provides a logical device. The Layers of logical devices are called VxVM volumes.
- True
- False
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Which of the following description of the storage protocol is correct? (Multiple choice.)
- FC InfiniBand SAS PCI-edouble can be a carrier of the SCSI protocol
- InfiniBand Transmission Speed “FC Transmission Speed” iSCSI transmission speed
- FCoE technology for GE and 10GE Ethernet
- FCoE SAS InfiniBand has its own switch product
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Customers in the process of using Simpana software, CS for some reason can not start normally. You need to restore the CS. Which of the following situations will cause the restoration to fail?
- The backup server and the ring server can not communicate properly
- The link between the backup server and the media server is faulty
- Backup server SQL database failure
- DDB is abnormal
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Dual-live solution: the optical fiber link between two data centers in the same city needs to be deployed with a wavelength division device.
- 10
- 25
- 50
- 100
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The OceanStor 18000 system used by a client business application has a total of three pools, each of which is a 9-disk RAID5. Someday analyzing the log of business interruption, we found that there are some scenarios in the system that caused the failure. What will cause the host access to the stored business in the following scenario? (Multiple choice.)
- In the fully redundant group environment, occurred the master reset.
- With the BST (bad track) feature turned off, a BST bad track appears on the LUN.
- The POOL where the business is located is all thin LUN and not a snapshot. LUN copy, clone and copy services are configured in the log POOL, which is a space full of print information.
- Log in the following print:
2014-01-19 08:04:40} {Receive a disk-fault event of the disk (328) of pool (2) from ctrl.}
2014-01-19 08:40:35} {Receive a disk-fault event of the disk (613) of pool (3) from ctrl.}
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When the N8500 (V200R001) clustered NAS operating system is archived as a banknote imaging platform, the information about storage units and networks is set. Choose the correct statement.
- When the access to the N8500 is all on the intranet, and the client traffic is not equal, it is recommended to configure the “balance-alb” mode (that is, bond 6 mode).
- When creating a LUN, write business for a long time, the stripe depth recommended 512KB.
- If the RAID group is configured as RAID 6, the number of member disks is recommended to be 9 disks, and it is not recommended to configure the RAID group.
- Fencing LUN should be placed in the same RAID group.
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