HP HP ExpertONE Certification HP0-J64 Questions & Answers

• Question 91:

  A customer in the financial needs full high availability and optimal write performance of an HP StoreVirtual 4000 solution in case of a data center failure.

  Which Network RAID level should you recommend?

  A. Network RAID 6

  B. Network RAID 10

  C. Network RAID 10+1

  D. Network RAID 10+2

  Correct Answer: D

  Network RAID-0, Network RAID-5, and Network RAID-6 will not tolerate site failures. Network RAID 5 - Stores three data and one parity as a minimum configuration i.e 3+1 , meaning three nodes as a starting point.

  Network RAID 6 - Stores three data and two parity as a minimum configuration i.e 3+2 , meaning five nodes are required initially.

  Network RAID 10 - Stores two copies of each volume's block, providing continuous data availability across any single node failure.

  Network RAID 10+1 - Stores three copies of each block for mission-critical data that needs to be available despite any double node failure.

  Network RAID 10+2 - used in situations where a cluster is divided between two locations, and the data must be continuously available in the event of both a site failure and a node failure at the alternate site (Campus SAN).

  Full high availability and optional write performance of and HP StoreVirtual 4000 http:// h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay/?

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  Network RAID10+1: Data is striped and mirrored across three or more storage systems. Three copies of the Data in a volume configured with Network RAID10+1 are available and preserved in the event that any two storage systems become

  unavailable. Best applications for Network RAID10+1 are those that require data availability even if two storage systems in a cluster become unavailable.

  Network RAID10+2: Data is striped and mirrored across four or more storage systems. Four copies of the Data in a volume configured with Network RAID10+2 is preserved in the event that any three storage systems become unavailable.

  Network RAID10+2 are designed for Multi- Site SANs to preserve data in the event of an entire site becoming unavailable. Best use for Network RAID10+2 volumes is for data that must be synchronously replicated between two locations and

  must remain fully redundant in the case of an entire site failure.

• Question 92:

  Which rule applies when designing a routed HP StoreVirtual 4000 Remote Copy environment to replicate data from a branch office to the main data center?

  A. The two IP subnets must have IP routes to each target network with forwarding.

  B. The two IP subnets must have IP routes to each target network with direct access mode configured.

  C. The two IP subnets must have IP routes to each target network without network address translation.

  D. The two IP subnets must have IP routes to each target network without a private VPN tunnel used.

  Correct Answer: C

  IP networking requirements You can use HP P4000 remote copy from one cluster to another cluster on a single IP subnet as well as across routed environments. In a routed environment, the two IP subnets must have IP routes to each target network without network address translation (NAT) or port forwarding. You can employ private WAN connections using point-to-point protocols, or you can set up a VPN tunnel between two networks that are separated by the public Internet. The VPN tunnel effectively acts as one hop on a router and will allow the use of private IP space on each end. http://h17007.www1.hp.com/docs/justrightit/HP%20StoreVirtual% 20P4000%20Networking %20Recommendations.pdf

• Question 93:

  A customer is concerned about backup data growth and maintaining or improvising restore service levels. The current environment consists of an HP StoreVirtual P4500 SAN solution, HP Data Protector, and an HP MSL4048 Tape Library with LTO-3 drives connected via SAS to the backup server.

  You have been asked to design an upgrade to the current environment that will provide increased backup storage and improve backup retention and restore times. What should be proposed?

  A. Configure client-side deduplication in the backup software.

  B. Implement HP StoreEasy with block-level deduplication.

  C. Upgrade the MSL Tape Library to LTO-5 tape drives.

  D. Implement an HP StoreOnce Backup System.

  Correct Answer: C

  The HP StoreEver MSL Tape Libraries meet demanding storage requirement of businesses needing unattended backup, disaster recovery, or archive capability. The MSL Libraries offer a broad choice of storage capacity and interfaces with LTO-6, LTO-5, LTO-4, or LTO-3 Ultrium tape drives.

  

  http://en.wikipedia.org/wiki/Linear_Tape-Open

• Question 94:

  An insurance customer is planning to purchase an HP StoreVirtual SAN to support their large document management repository. They want to utilize Network RAID 6 to protect against multiple failures. What is the minimum number of nodes that must be included in the proposal to support this requirement?

  A. 3

  B. 4

  C. 5

  D. 6

  Correct Answer: C

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• Question 95:

  A regional market leader in direct financial services run several call centers across the United States and is opening a number of new call centers in the near future. The client uses Windows XP on dedicated workstations. The IT infrastructure consists of numerous HP ProLiant DL 360 G5 and HP ProLiant DL380 G6 servers running VMware ESX or SUSE Linux for the database server, direct attached storage, and HP Ultimatum tape drives. They want to consolidate the infrastructure. Which drawback of his environment can be eliminated when designing an HP StoreVirtual 4000 Storage solution?

  A. Unexpected downtime caused by a site failure

  B. Performance bottlenecks caused by mixed workloads

  C. Inconsistent Oracle data caused by array snapshots

  D. Capacity bottlenecks caused by duplicated data blocks

  Correct Answer: B

  SmartClone technology is based on the space-efficient LeftHand Thin Provisioning architecture, and the volume clones can be used without limitation along with all other LeftHand OS features like Network RAID, Thin Provisioning, Snapshot, and Remote Copy. The feature works by taking any volume or snapshot and making one or many clones in an instant. The cloning function makes a permanent, read/write volume on the array, pointing back to the original volume's blocks instead of duplicating the blocks. By managing each clone as a pervasive volume, SmartClone eliminates any requirement for a volume, snapshot, or any of its predecessors to exist after the clone has been created, and also eliminates the need to run de- duplication software, because there are no duplicate blocks. The clone shares the original volume's blocks and uses copyon-write semantics. SmartClone technology reduces storage costs and increases overall storage efficiency.

  Administrators can store "gold-master" system images on the array for virtual desktop and boot- from-SAN implementations, and quickly provision test environments using real production data. To simplify management, administrators can view all of the relationships between clones, volumes, and snapshots graphically in the Control Management Console. http://h18006.www1.hp.com/products/ quickspecs/13254_div/13254_div.pdf

  

• Question 96:

  A customer requires a storage solution with the ability to easily align data placement within appropriate array tiers in order to reduce costs. Which description of HP 3PAR StoreServ Dynamic Optimization capabilities is accurate for this customer?

  A. non-disruptive conversion from frequently-accessed data in a fully provisioned storage tier to a thinly provisioned storage tier

  B. autonomic RAID-level alignment for all busy volumes after array capacity or controller upgrades

  C. automatic placement based on volume access patterns, tier capacity settings, and pre- determined optimization schedules

  D. user-initiated volume migration to the best tier, based on application needs or historical array performance analysis

  Correct Answer: D

  HP 3PAR Dynamic Optimization and HP 3PAR Policy Advisor for Dynamic Optimization are autonomic storage tiering tools that give your organization the ability to react quickly to changing application and infrastructure requirements. Used together, these unique 3PAR utilities alleviate the problem of costly and time-consuming quality of service (QoS) level optimization- even in the largest and most demanding environments.

  HP 3PAR StoreServ Dynamic Optimization and Adaptive Optimization software are optional features that allow storage administrators to seamlessly migrate data between storage tiers in their environment without interrupting data access. Never HP 3PAR StoreServ Dynamic Optimization "a fully provisioned storage tier to a thinly provisioned storage tier"

  HP 3PAR Thin-to-Fat and Fat-to-Thin Conversion In previous releases of the HP 3PAR OS, customers had to perform an offline transition in order to change the provisioning attributes of a volume. This used the legacy physical copy technology where upon completion of the copy, all the VLUNs and applications had to be manually moved from the old VV to the new one. With HP 3PAR OS 3.1.2 you now have the ability with HP 3PAR Thin-to-Fat and Fat-to-Thin Conversion to convert from a thin-provisioned volume to a fully-provisioned volume (or vice versa) without requiring an offline transition.

  Fat-to-thin saves space for volumes that are sparsely consumed VMware datastores while thin- to-fat saves on thin provisioning license usage for data stores that are currently thin provisioned volumes and mostly or completely allocated.

  (Answer for A) Non-disruptive conversion from frequently-accessed data in a fully provisioned storage tier to a thinly provisioned storage tier for Question HP 3PAR Fat-to-Thin Conversion http://www.vmware.com/ files/pdf/partners/hp/ vmware-vsphere-hp-3par-storeserv-so.pdf

• Question 97:

  An IT Operations Director of a large investment bank requests a meeting with the HP Account Manager and the Solution Architect. During the meeting, the IT Operations Director reports that there will be a 10% reduction in the investment bank's operations staff, which currently provides help-desk services and first level technical support for 400 U.S. customer banks.

  HP Professional Services provides support for the investment bank's New York and San Francisco data centers, which have HP 3PAR StoreServ 10000 Storage Systems attached to HPUX-based HP Integrity Superdomes. The investment bank's 400 customer bank use HP EVA P6400 storage attached to an HP BladeSystems with Virtual Connect FlexFabric. Now, the investment bank needs to add proactive monitoring and analysis What should the HP Account Manager and Solution Architect do to help the IT Operations Director address these challenges? (Select two.)

  A. Discuss the business benefits of the existing HP EVA 6400 install base using HP Insight Remote Support Advanced.

  B. Demonstrate the value of HP's Mission Critical Advantage Services.

  C. Prepare HP Consulting Services to evaluate the investment bank data center SAN monitoring and firmware management environment.

  D. Modify the management framework of the investment bank data center infrastructure with HP Systems Insight Manager and HP Insight Remote Support Standard.

  E. Recommend the placement of the HP EVA 6400 with the HP 3PAR StoreServ 12000 Storage System.

  Correct Answer: AD

  Needs to add proactive monitoring and analysis HP Insight Remote Support Advanced is ideal for midsize to large environments.It is recommended if you are already using HP Systems Insight Manager (SIM) for Microsoft Windows, have a larger enterprise environment, or need Mission Critical Services delivery.

  HP Insight Remote Support is ideal for environments with up to 2,500 devices and for customers who do not require a management platform integration or HP Mission Critical Services delivery. With Insight Remote Support, customers can take advantage of HP Insight Online to share device information with their HP authorized partners.

• Question 98:

  B-series switches with Access Gateway mode enabled provide connectivity to other switches that support which feature?

  A. VSAN

  B. NPIV

  C. FCIP

  D. LSAN

  Correct Answer: B

  Access Gateway

  Brocade Access Gateway Mode enables seamless connectivity for Brocade embedded SAN switches to other supported SAN fabrics, enhances scalability, and simplifies manageability. Utilizing N_Port ID Virtualization (NPIV) standards,

  Brocade Access Gateway eliminates switch/domain considerations.

• Question 99:

  During a customer proposal meeting for a 900 TB HP 3PAR StoreServ 10800, you discover an opportunity to address the lack of disaster recovery for two very critical applications that both require approximately 90 TB of usable storage each. The customer is considering a competitive disaster recovery (DR) solution to meet this requirement in a more cost-efficient manner than a second array.

  Which HP 3PAR StoreServ architectural feature should you position to address this customer need?

  A. Specify an HP 3PAR StoreServ Synchronous Long Distance configuration utilizing an HP 3PAR StoreServ 7200 synchronous configuration for the best possible RPO and RTO.

  B. Highlight the benefits of the HP 3PAR unified architecture and propose a minimally- configured HP 3PAR StoreServ 7200 to provide a cost-effective disaster recovery (DR) solution.

  C. Propose an HP 3PAR StoreServ solution that highlights the benefits of duplicated storage.

  D. Propose a second HP 3PAR StoreServ 10400 with a 250 TB replication license to cost- effectively meet the disaster recovery (DR) requirement.

  Correct Answer: C

  http://h20195.www2.hp.com/V2/GetPDF.aspx%2F4AA3-8318ENW.pdf Replication solutions for demanding disaster tolerant environments HP 3PAR Remote Copy software

  Long-distance disaster recovery

  Disaster recovery requirements that include low RTOs and zero-data loss RPOs pose a significant challenge.

  Adding a requirement for a distant disaster recovery site on the opposite side of a continent rather than in an adjacent town greatly compounds these challenges and the complexity of typical solutions.

  PDF Replication solutions for demanding disaster tolerant environments, pp 10 e 11 Synchronous long- distance topology

  Synchronous long distance combines the ability to make replicas created using synchronous mode over a high-speed low-latency network along with the high-link latency replication capability offered by asynchronous periodic mode to provide

  a long distance replication solution. An SLD topology has the potential of delivering a zero data loss RPO to the remote asynchronous periodic replication site. This is accomplished by using two backup storage servers: one located near the

  primary InServ using Synchronous mode (the sync array) and a distant storage server using asynchronous periodic mode (the disaster recovery array). In addition to the HP 3PAR Remote Copy connections from the primary array to the two

  backup arrays, a passive asynchronous periodic link is configured from the sync array to the disaster recovery array (see figure 8). This is the only HP 3PAR Remote Copy technology that supports replicating the same Remote Copy primary

  volumes from a source array to two separate target arrays. Only a single Remote Copy volume group (consistency group) is supported in an synchronous long distance topology.

  The primary intent of the SLD topology is to provide users with a way of potentially achieving an RPO of zero at the distant asynchronous periodic disaster recovery array in the event a disaster renders the primary array down. If a disaster

  takes the primary storage array down, on failover to the sync array, the passive asynchronous periodic link between the sync array and the disaster recovery array is activated and any data that was written on the sync array but that has not

  yet made it to the disaster recovery array is sent from the sync array to the disaster recovery array, bringing the disaster recovery array up to date with the last write that occurred to the primary array. After the disaster recovery array has been

  made consistent with the state of the primary storage array at the time of failure, operations may be continued using the disaster recovery site with no loss of data suffered (RPO = 0) (or operations can proceed from the sync array if that is

  desired). The normally passive asynchronous periodic link between the sync array and the disaster recovery array is then reversed so updates to the disaster recovery array are replicated back to the sync array albeit in asynchronous periodic

  mode. When the original primary array is restored to service, its Remote Copy links are reversed and used to synchronize the primary server's volumes with changes that occurred during the outage before resuming normal service.

  

• Question 100:

  Refer to the exhibit.

  

  The customer wants to implement an HP StoreVirtual solution for the environment shown. The storage requirements dictate that the solution must have four nodes per site. What needs to be considered when designing the solution?

  A. the latency on the link

  B. a failover manager required on both sites

  C. 200 MB/s bandwidth per storage nodes pair required

  D. the type of data being replicated

  Correct Answer: A

  Best practices Use a single IP subnet with Layer 2 switching

  Configure redundant network paths between sites to help minimize link failure in a two-site

  configuration. In multi-site cluster with three sites, HP recommends a triangle network design, not a V- design to ensure high availability.

  For 1GbE installations allocate 50 MB/s per storage node in the sites between data centers; for

  environments with 10GbE storage connectivity, reserve 250 MB/s. For campus cluster deployments with Fibre Channel connectivity on HP StoreVirtual, plan for 500 MB/s per storage node in the sites (only two sites supported). In the example (see Figure 7) above with 1GbE storage connectivity and two storage nodes in each

  site, designate 50 MB/s x 2 = 100 MB/s of bandwidth between the sites (at least one 1GbE link; two for redundancy). HP StoreVirtual Fail-over Manager is not in the data path and has to be connected using at least Fast

  Ethernet (100 Mb/s) with a latency not exceeding 50 ms.

  

  Network latency High network latency can be the primary cause of slow I/O performance, or worse, iSCSI target disconnects. It is important to keep round trip network latency on your storage subnet below two milliseconds. Many factors can contribute to increasing network latency, but two are most common:

  Distance between storage cluster nodes

  Router hops between storage cluster nodes

  Configuring a multi-site cluster on a single IP subnet with Layer 2 switching will help to lower the network latency between storage cluster nodes.