HP HP ExpertONE Certification HP0-J66 Questions & Answers

• Question 61:

  You are meeting with a customer that has a small business with an unpredictable workload in a virtualized environment. Which product family from the HP array portfolio do you lead your discussion with?

  A. P2000

  B. P4000

  C. X3000

  D. P6000

  Correct Answer: B

• Question 62:

  A customer needs to replicate data from a remote location to an HP StoreOnce B6200 Backup. What should the customer consider when planning the replication?

  A. The HP D2D sizing tool should be used to size link speed and understand concurrency restraints.

  B. Concurrency control should be used if the replication is not run at the same times as backups and housekeeping jobs.

  C. Separate replication jobs should be created for each data type.

  D. Backups and housekeeping jobs should be run in the replication window.

  Correct Answer: A

  The replication best practices that apply to HP StoreOnce D2D Backup Systems are equally as valid for the HP B6200 StoreOnce Backup System. Best practices include:

  * Use the Sizing tool to size replication link speed and understand replication concurrency restraints.

  Reference; HP B6200 Backup System, Recommended Configuration Guidelines

• Question 63:

  A storage administrator needs highly available connectivity from a Microsoft Windows host to an iSCSI storage array. The administrator needs to ensure that the data is still available in the event of a network port failure. What must the administrator enable on the Windows host?

  A. MPIO

  B. NIC teaming

  C. storage cluster services

  D. ISCSI initiator failover

  Correct Answer: A

• Question 64:

  In which HP rack is the factory Integration of an HP StoreServ 7000 supported?

  A. HP 5642 rack

  B. HP G3 rack

  C. HP 10000 rack

  D. HPV142 rack

  Correct Answer: B

• Question 65:

  A company needs a storage solution that provides four host bus adapter (HBA) slots and 64 GB of cache. Which HP storage solution meets these requirements?

  A. HP 3PAR StoreServ 7400

  B. HP StoreOnce 6200

  C. HP 3PAR StoreServ 7200

  D. HP StoreVirtual 4000

  Correct Answer: A

  HP 3PAR StoreServ 7400 4-node base with two 2U enclosures, four controller nodes, 64 GB cache, eight 8Gb/sec FC ports, four adapter slots, and 48 SFF drive bays.

  Incorrect:

  Not C: 3PAR StoreServ 7200 only has 32 GB cache.

• Question 66:

  Your customer has an existing HP StoreServ 7400 with four controllers. The array has only SSD drives installed. What should you consider when sizing a solution which includes Adaptive Optimization?

  A. Ensure that 3% of the capacity and 30% of the performance can be delivered by the SAS disks.

  B. Include SAS 10/15K disks in the configuration.

  C. Add SSDs or nearline disks to a single node pair.

  D. Size the nearline tier for 30% of the performance requirement.

  Correct Answer: B

  Note:

  *

  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.

  *

  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.

  *

  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.

  *

  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

• Question 67:

  A customer wants a new HP 3PAR StoreServ 7200 Storage System to maximize storage performance. What should the customer implement?

  A. quad controllers

  B. Adaptive Optimization

  C. 120 SSDs

  D. Dynamic Optimization

  Correct Answer: B

  The HP 3PAR Adaptive Optimization (AO) software takes optimization a step further into sub-LUN tiering. AO migrates sub-LUN data across CPGs based on user-defined policies. Two or three CPG tiers can be specified per policy; all

  volumes inside a CPG are subject of an AO policy. AO policies usually operate on an FC and NL tier or on an SSD, FC, and NL tier.

  This tool can improve system response and reduce disk acquisition cost by storing frequently accessed data in the faster tier while moving infrequently accessed data to the slower and cheaper slower tier.

  Incorrect:

  Not D: Related to online migration:

  P 3PAR's Dynamic Optimization (DO) software offers the functionality of EVA's Dynamic LUN Migration: volumes are migrated online to another CPG with a different RAID level, set size, drive media type , etc.

• Question 68:

  A small-business customer needs to implement a high IOPS storage system for an application that uses approximately 7 TB of space. Because the customer does not expect a large amount of data growth in the next few years, they need to minimize costs.

  Which storage system should the customer implement?

  A. HP 3PAR StoreServ 7400

  B. HP 3PAR StoreServ 10000

  C. HP 3PAR StoreServ F200

  D. HP 3PAR StoreServ 7200

  Correct Answer: D

• Question 69:

  A company needs to migrate from a third-party storage system to an environment that can grow by scaling out. The solution must also allow use of a server for downloading upgrades.

  Which solution meets the company's requirements?

  A. HP 3PAR StoreServ 7000

  B. HP StoreOnce 6200

  C. HP StoreVirtual 4000

  D. HP 3PAR StoreServ 10000

  Correct Answer: C

• Question 70:

  A storage administrator needs to perform a gradual migration of large backup volumes and jobs to a remote D2D system over time. Because this data is being replicated for the first time, the administrator needs to populate the target device with all the relevant hash codes.

  Which method should the administrator use to achieve this goal?

  A. using co-location

  B. using removable media

  C. seeding data over the WAN link

  D. setting initializer to migration

  Correct Answer: C

  *

  prior to being able to replicate only unique data between source and target D2D, we must first ensure that each site has the same hash codes or "bulk data" loaded on it ?this can be thought of as the reference data against which future

  backups are compared to see if the hash codes exist already on either source or target. The process of getting the same bulk data or reference data loaded on the D2D source and D2D target is known as "seeding".

  *

  Seeding is generally is a one-time operation which must take place before steady-state, low bandwidth replication can commence. Seeding can take place in a number of ways:

  / Over the WAN link ?although this can take some time for large volumes of data / Using co-location where two devices are physically in the same location and can use a GbE replication link for seeding. After seeding is complete, one unit is

  physically shipped to its permanent destination.

  / Using a form of removable media (physical tape or portable USB disks) to "ship data" between sites.