Fusion Storage supports the iSCSI protocol only in VMware scenarios.
- A . True
- B . False
A
Explanation:
Virtualization Platforms and Applications
Through standard SCSI and iSCSI interfaces, FusionStorage 8.0 supports integration with various virtualization platforms, such as Xen, KVM, VMware, and Hyper-V, as well as enhanced virtualization platforms provided by different vendors, such as Huawei FusionSphere. In addition, FusionStorage 8.0 supports a wide range of database applications, such as SQL Server, Oracle RAC, DB2, and Sybase, as well as various enterprise IT applications, industry applications, and web applications.
Dorado V6 LUNs have controller ownership.
- A . True
- B . False
B
Explanation:
Shared Front-end Adapter
• Requests from hostcan be evenly distributed on every front-end link
• LUNs are shared by all controllers (aka no controller ownership).
To configure HyperMetro for LUNs that are carrying host services, you must first stop the host services.
- A . True
- B . False
B
Explanation:
If the LUN for which you want to implement HyperMetro is carrying host services and it is difficult to determine when the system is busy or idle, you are advised to set the parameter to Medium to minimize the impact on host services.
HyperCDP objects can be used to restore data but cannot be directly mapped to hosts for read and write operations.
- A . True
- B . False
The full-stripe write technology supported by Dorado can effectively improve SSDs’ service life.
- A . True
- B . False
A
Explanation:
Based on characteristics of SSDs, OceanStor Dorado V6 uses ROW. In comparison with overwrite, full-stripe write avoids the overhead of reading disks brought by the write penalty, and also avoids frequent overwrites of parity data. After the data in the logical space is overwritten, the original data on the disk becomes garbage. The garbage data is released after being reclaimed in the background. Meanwhile, garbage reclaiming also produces extra overhead which has impact on the service performance after the reclaiming starts.
Controllers must be restarted during software NDU upgrade of Dorado V6.
- A . True
- B . False
When performing a controller fault test on the Dorado V6 mission-critical product models, ensure that each controller has a link to the host.
- A . True
- B . False
B
Explanation:
For Host, only one session
For controllers, have their own sessions to host
Huawei is the only storage vendor that has passed the 9-intensity earthquake resistance certification in China.
- A . True
- B . False
Huawei HyperMetro (active-active) solution supports non-disruptive capacity expansion.
- A . True
- B . False
Huawei active-active (HyperMetro) solution must use Huawei UltraPath.
- A . True
- B . False
Does incremental EC directly aggregate large objects and affect performance?
- A . Yes
- B . No
OceanStor 100D uses NVDIMMs as cache, which can prevent data loss during power failure.
- A . Yes
- B . No
Two quorum devices are deployed at the third-place site.
Both quorum devices can be used for arbitration at the same time.
- A . True
- B . False
OceanStor 100D can be deployed on standard universal servers.
- A . True
- B . False
In the test case of front-end interface module redundancy, you must first power off the controller and then the front-end interface module.
- A . True
- B . False
RAID2.0+ is a block-based virtualization technology. Disks are divided into CKs and CKGs form RAID groups. Therefore, compared with traditional RAID, RAID2.0+ does not require hot spare disks or hot spare space.
- A . True
- B . False
The system availability is 99.999%, indicating that the annual interruption time of the storage array is about 5 minutes.
- A . True
- B . False
Unity XT supports full configuration of NVMe SSDS.
- A . True
- B . False
The active-active status will be interrupted if a quorum server is faulty.
- A . True
- B . False
The OceanStor Os’s data plane and management plane are isolated from each other. Faults on either plane will not affect the other plane
- A . True
- B . False
Dorado V6 supports both scale-out and scale-up.
- A . True
- B . False
Huawei is the only storage supplier that has passed the 9 intensity earthquake resistance certification in China.
- A . True
- B . False
HyperMetro quorum servers can be deployed on VMs.
- A . True
- B . False
The deduplication and compression ratio of each LUN can be viewed on the DeviceManager of Dorado V3 (same with Dorado VG)
- A . True
- B . False
Enabling the Fast Write function of replication links between storage arrays can reduce the amount of data to be transmitted by 50%
- A . True
- B . False
Oceanstor Dorado V6 series includes entry-level mid-range and high-end product models.
- A . True
- B . False
After the SSD is removed the dirk domain of the OceanStor Dorado V3 (same with Dorado V6) storage system reconstructs data immediately.
- A . True
- B . False
The OceanStor OS has multiple innovative technologies to improve storage system reliability, including Huawei RAIG2.0+, SmartMatrix2.0, and HypenMetro.
- A . True
- B . False
In OceanStor Dorado V6, one LUN is enough for testing close-to-maximum performance.
- A . True
- B . False