HCE-3700 Online Practice Questions and Answers

Which two environments are suitable for cost effective use of Hitachi Accelerated Flash disk media? (Choose two.)

A. Online Analytical Processing (OLAP) data warehouse

B. Online Transaction Processing (OLTP) with HDT

C. large scale Consumer Video on Demand (CVOD)

D. Virtual Desktop (VDI)

In a VSP G200 system, what are two advantages of RAID 1+0 compared to RAID 5/6 for random write workloads? (Choose two.)

A. RAID 1+0 provides more useable capacity per for the same number of drives.

B. RAID 1+0 has less processing overhead.

C. Disk virtualization is lower.

D. RAID 1+0 has more efficient pre-fetch operation.

Which two port options are bi-directional on a VSP G800? (Choose two.)

A. Replication-Target (RCU)

B. Open Target (TAR)

C. External Target (eLUN)

D. Mainframe (FICON)

Which three statements are true regarding the Hitachi external storage architecture? (Choose three.)

A. Enabling Cache Mode increases exposure to problems with high Cache Write Pending.

B. Enabling Cache Mode allows destaging asynchronously from host I/O.

C. Enabling Cache Mode always improves performance.

D. A System Option mode can force in sequence destaging even when destaging asynchronously.

E. Disabling Cache Mode for an external LDEV eliminates the use of cache.

You need to run a benchmark test to verify the performance of a new multi-user database storage implementation before loading the real data.

What are three features you will need in the benchmark/workload generator to accomplish this task? (Choose three.)

A. variation of thread count

B. variation of sequential and random access

C. variation of RAID level

D. variation of HBA queue depth

E. variation of read and write

Your customer has a VSP G1000 with an HDT pool with two tiers (SAS 15K and SAS 10K). The response times have increased over time to an unacceptable level. They want to add a flash tier and they ask you if this solution will be appropriate.

Which tool should you use to satisfy the requirement?

A. Hitachi Server Priority Manager

B. Hitachi Tiered Storage Manager

C. Hitachi Universal Volume Manager

D. Tier Properties Performance Graph

You are sizing a storage system for a response-sensitive database application in a VMware environment.

Which two statements are true in this scenario? (Choose two.)

A. The cache hit percentage is determined primarily by the amount of cache provided by the storage system.

B. The peak load requirements of the database and filesystem is a key factor in determining the resources required to meet response time requirements.

C. The server virtualization will change the I/O profile of the application as viewed by the storage.

D. Sizing estimations for a database workload should be based on a steady state and then an extra 10% resources for headroom should be added.

Which three statements are true regarding a VSP G400 configuration for a Microsoft Exchange Server environment? (Choose three.)

A. RAID 1+0 is a recommended RAID level for the database volumes.

B. RAID 6 is a recommended RAID level for the database volumes.

C. HDP is a recommended configuration for database volumes.

D. Parity group concatenation is recommended.

E. Microsoft JetStress testing should be used to validate the required performance.

How does the HDLM Extended Round Robin algorithm impact sequential I/O?

A. It continues to use the same path for a user-specified count of sequential I/O requests.

B. It remembers a user-determined number of addresses to better implement sequence detection for the storage.

C. It buffers and reorders I/O requests to improve sequence detection by the storage.

D. It makes a path decision for every I/O request.

A high level of writes to external storage is backing up into a VSP G1000 cache, creating a high write pending problem that is affecting other workloads.

Which three actions will help to minimize this problem? (Choose three.)

A. Add more cache to the enterprise storage system.

B. Add more cache in the external storage.

C. Quarantine the LUNs in a separate cache partition.

D. Set Cache Mode to "Disabled" for the external LUNs.

E. Address the throughput constraints in the external storage.