Correct Answer: B

Note:

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SAS stands for Serial Attached SCSI. Basically, a SAS drive utilizes the same form factor as a SATA drive but has several high performance advantages. First of all, there's the platter speed. While typical SATA drives operate at 7200RPM,

a SAS drive operates at 10K or 15K. Although the platter speed is double that of SATA, the MTBF (Mean Time Before Failure) remains at the industry standard of 1.2 million hours.

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Make sure to define tier 0 to be on a higher performance level than tier 1, which in turn should be higher performance than tier 2. For example, you may choose RAID 1 with SSDs for tier 0, RAID 5 with FC drives for tier 1 and RAID 6 with

NL or SATA drives for tier 2.

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Best practices encourage you to begin your Adaptive Optimization configurations with your application CPG starting with tier 1. For example, tier 1 could be CPG using your FC or SAS physical disks. This allows you to add both higher and

lower tier capabilities at a later date. If you don't have higher or lower tier, you can add either or both at a later date by using a new CPG, such as tier 0 using SSDs or tier 2 using NL. Or, you could have CPG tiers with RAID 1 or RAID 5 and

RAID 6. The main point is that you should begin with middle CPG tier 1 when configuring Adaptive Optimization with your application.

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Example:

HP 3PAR Adaptive Optimization moved ~33 percent of the IOPS workload to the SSD drives even though that involved moving only 1 percent of the space. Performance improved in two ways: the 33 percent of the IOPS that were serviced by

SSD drives got very good latencies (~2 ms), and the latencies for the NL drives also improved (from ~40 ms to ~15 ms). Moreover, the investment in the 16 SSD drives permitted them to add even more NL drives in the future, because the

SSD drives have both space and performance headroom remaining.

Reference; Adaptive Optimization for HP 3PAR StoreServ Storage

Correct Answer: A

Correct Answer: D

What's New in the OS HP 3PAR OS 3.1.2 enables customers to increase multi-tenant consolidation on shared infrastructure and increase agility and efficiency with several new features and enhancements. HP 3PAR OS 3.1.2 supports the new HP 3PAR StoreServ 7000 Storage. HP 3PAR OS 3.1.2 features include the following benefits:

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Enhanced multi-tenancy and several scalability and resiliency features

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(D) Autonomic management for agility and ease of use with enhancements to Autonomic System Rebalance, Adaptive Optimization and other enhanced capabilities

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Thin Technologies for efficiency and capacity reduction with tighter integration with Windows Server 2012.

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Federated Technologies for providing online data migration with Online Import between EVA Storage and 3PAR storage. Reference; HP 3PAR Operating System 3.1.2 GA/MU1/MU2, Release Notes

Correct Answer: A

Correct Answer: D