H13-624_V5.5 무료 덤프문제 온라인 액세스

When delivering a flash storage project, Huawei engineers introduced the arbitration mechanism of HyperMetro to the customer. Which of the following statements is false about the arbitration modes?

• A.In static priority mode, if the preferred site of a HyperMetro pair breaks down, the non-preferred site does not automatically take over HyperMetro services. As a result, the services stop, and the customer must forcibly start the services at the non-preferred site.
• B.If no quorum server is configured, HyperMetro works in static priority mode. When an arbitration occurs, the preferred site wins the arbitration and provides services.
• C.In quorum server mode, the quorum server can be deployed only on physical machines and not on virtual machines.
• D.In quorum server mode, if the link between storage systems is down, each storage system sends an arbitration request to the quorum server.

Assume a financial customer purchased several Huawei scale-out storage devices for deploying the video surveillance service. This service has high requirements on performance. Therefore, the cache write policy must be set to write-through for the storage devices.

• A.FALSE
• B.TRUE

Which of the following statements are false about direct TCP offload engine (DTOE) 1.0?

• A.High latency overhead still exists using the technology, such as kernel mode interrupts, locks, system calls, and thread switching.
• B.This technology requires CPU to process each MAC frame, which will consume a large number of CPU resources.
• C.This technology allows to directly operate the hardware queue in the user mode, avoiding the context switching overhead.
• D.This technology uses the polling mode, reducing the latency.

Assume an industry customer purchased several Huawei flash storage devices for service deployment. During routine management, an engineer found that the host bus adapter (HBA) driver version of the host is outdated and the number of concurrent HBAs was insufficient. As a result, the latency on the host differs greatly from that on the storage side. Which of the following measures can the engineer take to optimize performance?

• A.Upgrade the HBA driver to the latest version.
• B.Use the management software provided by the HBA vendor to query and modify the number of concurrent HBAs.
• C.Change the cache prefetch policy to constant prefetch.
• D.Change the load balancing algorithm of the multipathing software to min-task.

Huawei Ocean Protect Appliance adopts the key technology of CPU core grouping and intelligent scheduling, which is widely used by customers in many industries. Which of the following is the advantage of this technology?

• A.When this technology is used to carry different services, some cores are overloaded, resulting in high latency.
• B.The system can prefetch data and metadata from all LUNs, improving the cache hit ratio.
• C.The scheduler can distribute jobs to other cores based on the service load status, implementing load balancing.
• D.This technology implements physical and logical isolation of resources, reducing latency.