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)

Response times in an HDP pool have been increasing consistently with each additional workload during a large scale migration. The response times may become unacceptable with subsequent migrations. The purchase of additional equipment is an acceptable solution.

What are two valid actions in this scenario? (Choose two.)

A. Increase the pool free space and alert thresholds to the maximum permitted levels.

B. Expand the pool with volumes from new parity groups to reduce utilization levels.

C. Apply the SOM to provide tier property information that assesses suitability for HDT and deployment of flash.

D. Use more, smaller, pool LDEVs per parity group to improve the efficiency and utilization of the queues.

Relocation cycles are regulatory failing to complete in an HDT implementation where the customer is also reporting lower than expected performance.

What should be done in this scenario?

A. Change to Continuous mode and increase the monitor period cycle time.

B. Change to Period mode and increase the monitor period cycle time.

C. Change to Period mode and reduce the monitor period cycle time.

D. Change to High-Performance mode and reduce the monitor period cycle time.

When testing an external LUN with default mapping on two paths, performance appears constrained and the utilization of the RAID group in the external storage system never exceeds 35% busy no matter how many test threads are generated. You want to increase the utilization of the external RAID group.

Which two actions will accomplish this task? (Choose two.)

A. Increase the external path LUN queue depth setting.

B. Increase the number of LUNs mapped from the external RAID group.

C. Change Cache Mode to "Disabled".

D. Increase the server HBA LUN queue depth to 64.

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.

DP-Vol LUNs are taken from an HDP pool deployed with 128 disks (16x4D+4D RAID groups). Access is random read.

Which combination of FC paths, LUN Queue Depth, and number of DP-Vols will result in a per-disk queue of 4 within this pool?

A. 2 paths, a LUN Queue Depth of 16, and 32 DP-Vols

B. 2 paths, a LUN Queue Depth of 8, and 32 DP-Vols

C. 4 paths, a LUN Queue Depth of 8, and 32 DP-Vols

D. 4 paths, a LUN Queue Depth of 16, and 32 DP-Vols

In a database environment, the system administrator complains that high write response times are triggering frequent automated alerts. However, utilization for processor, paths, and array groups is low. Database users are not complaining.

What causing this problem?

A. The RAID level is inappropriate.

B. The storage system has too few processors.

C. The storage media devices are too slow.

D. Asynchronous destaging of writes occurs in bursts.

A customer complains about high response times. This occurs frequently with bursts of write I/O at 6,000 IOPS for 10 second periods during each minute. The write response is 60 ms during these 10 second periods. The average IOPS rate reported by Hitachi Tuning Manager over 1 minute is 600.

In this scenario, what is the average response time over 1 minute?

A. 10 ms

B. 30 ms

C. 60 ms

D. 90 ms

A customer is replicating VSP G1000 production data using HUR. The customer experiences a network outage. During the outage, the customer reported an increase in response times.

Which two actions would minimize this problem during future network outages? (Choose two.)

A. Leave the HUR SOM in the default setting.

B. Set the SOM that suspends pairs during outages.

C. Add volumes in the journal.

D. Increase the size of the Journal Pool capacity by adding additional parity groups.