HCE-3700 Online Practice Questions and Answers

A 10K RPM Small Form Factor 600 GB disk drive has a 3 ms average rotational latency and a 4 ms average seek time.

How many random read IOPS would you expect from a 4D+4D RAID group using these drives before any consideration for cache hits or queuing optimization benefits?

A. approximately 570 IOPS

B. approximately 1,140 IOPS

C. approximately 1,530 IOPS

D. approximately 2,280 IOPS

You are partitioning a VSP G1000 with eight VSDs and 1024 GB cache, and are creating an 80 GB CLPR. In this scenario, how much cache does each VSD blade initially reference in the CLPR?

A. 10 GB

B. 80 GB

C. 640 GB

D. 1024 GB

Which two statements are true regarding HDP pools? (Choose two.)

A. Using the largest possible pools is a recommended practice.

B. Exposure to failure and recovery from failure must be considered when recommending the maximum size of a pool.

C. HDP pools can be used for sizing HDT pools.

D. Tier migration is based on performance and space capacity.

A VSP G800 HDT pool contains FMDs, NL-SAS drives, external storage with 15K 600 GB SAS drives, and external storage with 10K 900 GB SAS drives.

Which tier level contains the NL-SAS drives in this configuration?

A. 1

B. 2

C. 3

D. 4

A customer has several Oracle databases with different workload profiles residing on old HUS systems. The customer wants to consolidate workloads on a new VSP G800 system to increase database performance and to reduce costs.

Which configuration would you use to accomplish this task?

A. Put all of the databases in a single HDT pool.

B. Put each database in its own HDT pool.

C. Put databases with the same workload profile together in their own HDT pool.

D. Put all database tablespaces and indexes in the first HDT pool, all redo logs in the second HDT pool, and all undo logs in a third HDT pool.

A customer has a VSP G800 storage system with an HDT pool with internal SAS drives and a virtualized third-party array using SATA RAID 6. The virtualized array is connected to the VSP G800 using four 8 Gbps FC paths. The customer reports performance problems on an OLTP application deployed on a virtualized server using the HDT pool.

What are two reasons for this problem? (Choose two.)

A. The workload includes significant random writes to SATA over RAID 6.

B. The tier relocation is not assisting the OLTP application.

C. The size of Tier 1 is not sufficient to accumulate all of the hot pages.

D. The speed of the FC links is insufficient.

A customer with a VSP G1000 is using HDT with SAS 15K drives and external storage. The customer wants the daytime response-sensitive workload to benefit from tiering. They also want to minimize the impact of relocations on the daytime operation itself.

In this scenario, which action will satisfy the requirements?

A. Enable monitoring only during the daytime hours (9:00 AM to 5:00 PM) and only enable relocation at other times.

B. Disable monitoring during daytime hours (9:00 AM to 5:00 PM)

C. Enable active flash so that all relocations can be completed in short bursts.

D. Use continuous mode with a 30-minute cycle time and define relocation during daytime hours (9:00 AM to 5:00 PM) with a low relocation speed.

A customer has an HDP pool with four array groups and 600 GB SAS drives operating at 85% utilization. Four array groups of the same configuration were added to the pool.

In this scenario, which metric should be reviewed to validate optimal pool performance?

A. pool total IOPS

B. pool I/O profile

C. pool array group utilization

D. pool read/write ratio

You are planning for a performance upgrade for a transaction application.

Which three metrics are necessary to determine the required back-end storage configuration in this scenario? (Choose three.)

A. cache read hit ratio

B. read/write ratio

C. transfer rates

D. queue depth

E. IOPS

What are two benefits of placing transaction log files on RAID 1+0 disks for Microsoft SQL Server databases rather than RAID 5 disks? (Choose two.)

A. Multiple transaction log files are supported.

B. Faster recovery after disk hardware failure is realized.

C. Capacity utilization rates are improved.

D. Microsoft recommendations are followed.