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HP0-847

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HP Certified Professional

Disaster Tolerance and Data Availability HP0-847
Exam Preparation Guide

Purpose of the exam prep guide

The intent of this guide is to set expectations about the content and the context
of the exam and to help candidates prepare for the exam. In this guide, you
will find recommended HP training courses, reference and study material, and sample test items to help you achieve a successful passing score.

Studies conducted by HP and Prometric show that a combination of course attendance and self-study maximizes the likelihood of passing the exam on the first attempt.

Audience

This exam is for Storage Solution Architects and Services personnel. Examples of job roles:

 Support of Sales Specialists

 Design of SANs which provide data replication and disaster tolerance

 Service support of SAN configurations

General areas of content include installation, configuration, and servicing of the following:

 Virtual Replicator

 Enterprise Volume Manager

 Secure Path

 Data Replication Manager

Certification requirements

The Disaster Tolerance and Data Availability Exam HP0-847 is one of the core requirements to be certified as a Master ASE, SAN Architect.

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Disaster Tolerance and Data Availability Exam Preparation Guide

This level of certification measures the competencies required for hands-on
design as well as the skills needed for the integration and support of business
solutions for complex, enterprise environments. Given a set of customer business requirements this individual is expected to be able to design, support and integrate application, middleware, platform, operating system, storage, network, and option components necessary to solve business needs. The ideal candidate is anyone who deploys complex solutions based on HP
technologies. Individuals pursuing this level must meet the prerequisite of having the Accredited Systems Engineer certification.

Prerequisites

Successful completion of:

 the Implementing SANworks Solutions course

 the Implementing and Servicing Data Replication Manager

Students should be comfortable with the following before taking this class:

 Fibre Channel concepts including knowledge of Arbitrated-Loops, Switched Fabrics, and Fibre Channel hardware components

 Familiarity with a Windows-based server environment measured by comfort in navigating through Windows system management utilities

Exam details

At the beginning of the exam, you will be asked to answer several survey questions. The survey questions are designed to assist the exam development team in accurately profiling test results and to improve future exams.

The following are details about the exam:

 Number of items: 60

 Item types: multiple choice, point-and-click, and drag-and-drop

 Time commitment: 75 minutes

 Passing Score: 66%

 Reference Material: No on- line or hard copy reference material will be allowed at the testing site.

Comments on the exam

During the exam, participants can make specific comments about the items
(i.e., accuracy, appropriateness to audience, etc). HP welcomes these
comments as part of our continuous improvement process.

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Disaster Tolerance and Data Availability Exam Preparation Guide

Exam content

The following testing objective s represent the specific areas of content covered in the exam. Use this outline to guide your study and to check your
readiness for the exam. The exam measures your understanding of these areas.

SANworks Data Replication Manager – Concepts
Describe the purpose of Data Replication Manager (DRM).
Identify the benefits of DRM.
Explain the principle of a remote copy set.
Using a graphic, distinguish between synchronous and asynchronous replication and identify the advantages and disadvantages of each mode .
Describe the procedure for managing replication I/O.
Describe what is meant by an association set and explain how it is used.
Explain how log units and failure policies affect the behavior of an association set.
Identify how DRM operates in normal mode and explain the significance of write -history logging, mini-merge, and fast-failback.
Describe the functionality of failsafe mode.
SANworks Data Replication Manager – Installation and Configuration
Identify and explain the steps required to plan for a Data Replication Manager (DRM) installation.
Identify the operating systems supported by DRM.
Describe DRM support for non-remote copy set LUNs, cloning and snapshots.
Identify the hardware and software required to support DRM.
Explain how to configure HSG80 RAID Array Controllers to support DRM.
Given a scenario, distinguish between the DRM topologies: standard and firewall.
Identify and explain the correct power up and power down procedures for DRM configurations.
Explain how DRM handles planned and unplanned failures.
Using a scenario, distinguish between the failback procedures: simple, full failback, and full failback to new hardware.
Business Value of a Well-Planned Disaster Tolerance, Data Availability Plan
Identify the business value of a properly designed and executed disaster tolerant / disaster recovery solution.
Describe the purpose, features, and functions of the SANworks application solutions: Virtual Replicator, Enterprise Volume Manager, Secure Path, Data Replication Manager.
SANworks Virtual Replicator
Identify Compaq solutions for Virtual Replicator.
In a given customer situation, determine when to use Virtual Replicator to solve a business problem.
Explain how to implement a Virtual Replicator solution.
Identify the list of steps necessary to use Virtual Replicator in the backup and recovery process.
Explain how to use Virtual Replicator in data recovery.
Describe the impact and limitations of using Virtual Replicator in the backup and restore process.
SANworks Enterprise Volume Manager
Identify Compaq solutions for Enterprise Volume Manager.
Identify a case study that uses Enterprise Volume Manger in the solution.
Explain how to implement an Enterprise Volume Manager solution.
Identify the list the steps used by EVM to create a snapshot and use that snapshot in the backup process .
Identify the steps used by EVM to create a clone and use that clone in the backup process.

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Disaster Tolerance and Data Availability Exam Preparation Guide

Explain the purpose, features, and functions of EVM in data recovery.
Describe the impact and limitations of using EVM in the backup and restore process
Using SANworks Secure Path and Data Replication Manager
Identify Compaq solutions for Data Replication Manager.
Identify a case study that uses Data Replication Manager in the disaster tolerant solution.
Explain how to use Data Replication Manager in a disaster tolerant solution.
Describe the purpose, features, and functions of the cable configuration used for Secure Path in a DRM
environment.
Explain how Secure Path creates a no-single-point-of-failure environment.
Identify the list of steps necessary to failover to a DRM target site when the initiator site has an unplanned failure.
Identify the list of steps necessary to failback when the initiator site has recovered.
Describe the impact on any applications that are affected by the failover or failback process.
Case Studies
Given a problem solving scenario, determine which SANworks application to use in solving a business problem.
Explain how to design a solution using the chosen appli cation (Virtual Replicator, Enterprise Volume
Manager, or Data Replication Manager).
Scripting SANworks Data Replication Manager
Explain how to obtain and install the necessary program files to use the SANworks DRM Scripting Utility.
Explain how to set up the Command Console LUN (CCL) for SCSI-2, to use with the SANworks DRM Scripting Utility.
Using the SANworks DRM Scripting Utility, explain how to customize the following files for a DRM configuration: configuration generation batch files, target controller configuration files, and the application action list.
Using the SANworks DRM Scripting Utility, explain how to run the failover, failback, and resumption of operation batch files.

Recommended Training and Study References

This section lists training courses and documents that can help you acquire a majority of the knowledge and skills needed to pass the exam. You must also gain the practical experience outlined in this guide.

You are not required to take the courses listed in this section. However, HP strongly recommends that you attend the classes, participate in class labs, and thoroughly review all course material and documents before taking the exam, even if you believe you have sufficient on-the-job experience.

Free hp Sample Printable PDF VCE Download: PassGuide offers free demo for HP certification Exams You can check out the interface, question quality and usability of our IT Simulation exams before you decide to buy it. We are the only one site can offer demo for almost all products.

Instructor-Led Training

Use the information in this guide and the practical experience you have gained
to determine your need for the instructor-led training.

 Disaster Tolerance and Data Availability

Web-based Training

Self-paced training and technical documentation may provide appropriate learning alternatives to instructor- led training for more experienced candidates.

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Disaster Tolerance and Data Availability Exam Preparation Guide

Title How to Order/Obtain
N/A N/A

Documentation

Title Section Title Source/Order Number
DRM Configuration
Guide, DRM
Scripting – User Guide, DRM Failover and Failback Users Guide, and DRM Release Notes

EVM Administration
(Multi-OS) Installation Guides and Release notes

SANworks Virtual Replicator System Administrator’s and Installation Guides

http://www.compaq.com/products/sanworks/

drm/documentation.html#og

http://www.compaq.com/products/sanworks/

evm/documentation.html#install

http://www.compaq.com/products/sanworks/

vr/documentation.html

Other Reference Material

Title Order Number Source
N/A N/A N/A

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Disaster Tolerance and Data Availability Exam Preparation Guide

Sample Test Items

The sample test items give you a preview of what the actual test items will look like. It is important to note that these items WILL NOT be on the exam itself. However, they are representative of the actual items, and they should help you become familiar you with the format and complexity of the test
items. These sample test items are not a check for readiness.

1. In Data Replication Manager, an association set contains remote copy sets that share common attributes if enabled. Which three are valid attributes? (Choose three.)

a. All failsafe members fail together.

b. All members have the same log unit.

c. All members have the same RAID level.

d. All members must have consecutive unit numbers.

e. I/O order is kept across all asynchronous target members.

2. What is the maximum number of Data Replication Manager remote copy sets allowed per HSG80 controller pair?

a. 1 b. 4 c. 8 d. 12

3. Which two are required to perform a fast-failback on Data Replication
Manager? (Choose two.)

a. Failback error mode must be enabled.

b. Planned failover procedure must be previously executed.

c. Non-remote copy set must be present at the initiator site.

d. Write- history logging must be enabled at the initiator site.

e. Write- history logging must be enabled at the target site after failover.

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Disaster Tolerance and Data Availability Exam Preparation Guide

4. When planning a Data Replication Manager configuration, what intersite
link is recommended for use when the initiator site is 1000 kilometers
from the target site? a. longwave GBIC b. shortwave GLM
c. very long distance GBIC

d. Fibre Channel over IP or ATM

5. On Data Replication Manager, you can take snapshots of _____.

a. any units on the target site

b. remote copy set initiator units c. association sets on the initiator
d. only remote copy sets on the target site

6. What CLI command puts the HSG80 in DRM mode?

a. enable drm=sitea

b. enable remote_copy=sitea

c. set this_controller drm=sitea

d. set this_controller remote_copy=sitea

7. You have a planned scheduled maintenance at the initiator site and write- history logging will be used at the target site for fast failback. Which
Data Replication Manager procedure should you use?

a. Planned Site Role Reversal Procedure

b. Short Planned Site Failover with Fast Failback Procedure

c. Extended Planned Site Failover with Full Failback Procedure

d. Resumption of Replication After Short Planned Loss of Target
Procedure

8. What are two purposes of SANworks Virtual Replicator? (Choose two.)

a. provides oonline rapidshare 4shared links volume growth

b. provides ability to clone SWVR oonline rapidshare 4shared links volumes

c. provides an alternative to traditional tape back-up

d. provides ability to take snapshots of SWVR oonline rapidshare 4shared links volumes

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Disaster Tolerance and Data Availability Exam Preparation Guide

9. Which three are supported by EVM on Windows 2000? (Choose three.)

a. basic disks

b. FAT volumes c. dynamic disks d. NTFS volumes
e. business continuance volumes

10. An unplanned loss of the initiator site occurs in a Data Replication
Manager environment. Which three steps must be performed at the target
site to failover? (Choose three.)

a. failover write history log unit b. failover each remote copy set
c. allow host access at the target site

d. disable access to initiator controllers e. power off switches at the initiator site

11. In a Data Replication Manager environment an unplanned failover has occurred. When is a “New Hardware” failback procedure required?

a. when an initiator site has not had a power loss

b. when a target site has a write-history log failure c. when a target site has a major hardware outage
d. when an initiator site has a major hardware outage

12. In a Data Replication Manager environment, which product can stop and start applications as part of a failover process?

a. Compaq DRM Scripting Kit

b. SANworks DRM Solution Kit

c. Compaq DRM Failover Manager

d. SANworks DRM Automation Manager

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Disaster Tolerance and Data Availability Exam Preparation Guide

13. A company uses Windows 2000 as its core IT infrastructure. They have
several different types of storage, including SAN-connected and direct-
attached RAID subsystems on their servers. Storage needs increase frequently on their larger servers, and volume size needs to grow without interruption.

Which product would help this company manage these issues?

a. SANworks Virtual Replicator

b. SANworks Secure Path Manager

c. SANworks Data Replication Manager

d. SANworks Enterprise Volume Manager

14. A customer has four HSG80 pairs with a full complement of disk drives. They have many unused disk drives.

They want to be able to use snapshot technology to allow them to back up oonline rapidshare 4shared links with little impact on their production server. The customer wants to mount the snapshot unit to a specific server which has their backup applications installed.

Which solution could assist them in this?

a. SWCC

b. Data Replication Manager

c. SANworks Virtual Replicator

d. SANworks Enterprise Volume Manager

Answers:

1. A, B, E

2. D

3. B, E

4. D

5. A

6. D

7. B

Conclusion

8. A, D

9. A, D, E

10. B, C, D

11. D

12. A

13. A

14. D

HP wishes you success in the HP Certified Professional Program and in passing the exam for which you are preparing.

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