HCE-3700 Online Practice Questions and Answers

Which three functions are performed by a VSP G1000 Virtual Storage Director (VSD)? (Choose three.)

A. It executes host I/O requests.

B. It calculates parity.

C. It manages cache segment usage.

D. It moves data to/from cache.

E. It executes software such as HDP or copy products.

You are sizing a VSP G4000 for a customer who requires good performance but has a very limited budget. You now must select a cache size between 64 GB and 128 GB.

Which three conditions will affect your selection in this situation? (Choose three.)

A. The customer plans to use Cache Logical Partitions (CLPRs)

B. The customer environment is mainly VMware.

C. The number of LDEVs that are available.

D. The customer will use ShadowImage.

E. The number of connected hosts.

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

Your VSP G1000 customer has an HDP pool with 600 GB drives and they need more IOPS in the pool. Which action will satisfy the requirement?

A. Spread the pool over storage tiers.

B. Add 1.2 TB drives to the pool.

C. Add more 600 Gb drives of the same type.

D. Create a new HDP pool.

Immediately after migrating to a new HDT pool, Hitachi Tuning Manager shows that Tier 1 SSD, Tier 2 SAS, and Tier 3 NL-SAS are not busy for performance but Tier 1 and Tier 2 are over utilized for capacity.

From this analysis, which action should be performed?

A. Re-asses after HDT performs page migration cycles.

B. Add more drives to Tier 1.

C. Add more drives to Tier 1 and Tier 2.

D. Remove the SSD tier.

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.

After moving an application to a dedicated HDP pool consisting of four array groups, RAID 6 and NL-SAS 6 TB drives, the user has noticed significantly high response times.

What information would be used to determine if the pool is configured appropriately in this scenario? (Choose two.)

A. total IOPS

B. average request size

C. array group utilization

D. percent random write ratio

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.

Which two conditions are amplified by the use of longer data intervals for analysts? (Choose two.)

A. There will be more arbitrary data loss when viewing on a typical computer screen.

B. Analysis tools will require more processing time and computing resources.

C. The peaks values reported will reflect interactive user experience less accurately.

D. Analysis tools will require less processing time and computing resources.

An experienced system administrator reports near maximum MPB utilization with VSP G400 arrays operating in a GAD pair. Each array is supporting 100K IOPS with a 50% read workload. The MPBs should be capable of supporting more than 200K IOPS with this profile according to the basic array sizing tools.

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

A. Cache mirroring between the two G400 arrays generates an extra MPB load which is not recorded in Hitachi Tuning Manager.

B. Each G400 array is also processing 50K duplex write IOPS from the other G400.

C. The duplex GAD writes are changing the overall read/write I/O profile and the extra parity operations are causing the high MPB utilization.

D. The internal array queue management scheme for GAD write operations causes MPB utilization to be doubled.