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examout.co

Assume a bank customer purchased several Huawei flash storage devices for deploying the document Imaging service. This service mainly involves random large I/Os, more read operations than write operations, and many metadata operations, with obvious hot and cold data characteristics.

A.

TRUE

B.

FALSE

Assume a government office purchases a Huawel OceanStor Pacific 9550 storage device. During an Inspection, an engineer notices the IAN on motherboard (LOM) optical port Indicator on the rear panel of the device Is steady yellow. This indicates that data is being transmitted at a rate of 25 Gbit/s.

A.

TRUE

B.

FALSE

For device reliability purposes, during the quick Installation of OceanStor Pacific 9550, engineers need to connect power cables on the storage device supplied by two power modules to separate power distribution units (PDUs).

A.

TRUE

B.

FALSE

In actual service scenarios, the HyperMetro feature of Huawei OceanStor Pacific series supports incremental synchronization. If a site fails, the site that wins arbitration continues providing services, and I/O requests change from the dual-write state to the single-write state. After the faulty site recovers, data generated during the fault can be synchronized to the recovered site.

A.

TRUE

B.

FALSE

In Huawei flash storage, an administrator is a built-in role that can manage users, upgrade the system, change the system time, power off the device, and restart the device.

A.

TRUE

B.

FALSE

Which statements are false about software Installation of Huawei OceanStor Pacific series storage systems?

A.

To install the Distributed Parallel Client (DPC), the switch configuration is required before the installation regardless of whether the low level design (LLD)- or wizard-based installation mode is selected.

B.

To interconnect with FusionCompute during block service installation, storage and compute nodes must be deployed in converged mode, and the management nodes must be deployed in the virtualization environment.

C.

To interconnect with Huawei Cloud Stack during block service installation, storage and compute nodes must be deployed in converged mode, and the management nodes must be deployed in the virtualization environment.

D.

To install the file service in the standard protocol scenario, the switch configuration is not required throughout the entire installation process.

In Huawei backup storage OceanProtect X3000, data reduction supports fixed-length (^duplication by default, but does not support variable-length (^duplication. Therefore, fixed-length ded11plication Is mainly used in the backup field.

A.

TRUE

B.

FALSE

To power off a storage system, you need to stop host services, power off controller enclosures, and then disconnect external power supplies.

A.

TRUE

B.

FALSE

In Huawei flash storage, the integrated I/O stack of SAN and NAS can be divided into the storage pool layer, space management layer, and data service layer. Which of the following are performance concerns of the space management layer?

A.

Cache hit ratio of hot metadata

B.

CPU usage of metadata background management

C.

Whether failover is enabled for protocol receiving threads

D.

Hit ratio of the prefetch algorithm

A financial customer purchases a Huawei flash storage device for subsequent service deployment. During storage configuration, an administrator finds that LUNs mapped to an application server cannot be detected on the application server. Which of the following are possible causes of this exception?

A.

The storage pool is faulty.

B.

In HP-UX, the application server does not have a LUN mapping whose host LUN ID is 0.

C.

In UNIX or Linux, a device node file is lost.

D.

The serial port connection parameters are incorrectly set.