[Free] 2018(Jan) EnsurePass Examcollection IBM C9020-562 Dumps with VCE and PDF 11-20

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IBM Storwize Family Technical Solutions V4

Question No: 11

A customer has a pair of IBM Storwize storage systems installed and plans to implement IP based replication for DR and has asked a technical specialist for guidance on remote-copy port groups.

The technical specialist explains that remote-copy port groups are unique to IP partnerships and must contain at least one IP address in the local system and one IP address in the remote system.

What is the maximum number of remote-copy port groups that is supported?

  1. 2

  2. 4

  3. 1

  4. 3

Answer: D Explanation:

Remote-copy port groups are unique to IP partnerships, and are the local and remote IP addresses accessible to each other through an IP partnership. A remote-copy port groupmust contain at least one IP address in the local system and one IP address in the remote system. You must configure ports and assign to them a remote-copy port group number before establishing the IP partnership.

A remote-copy port group is designatedby a number between 0 and 2 inclusive that identifies a set of IP addresses. These port groups are defined as follows:

Group 0 – These ports are not configured for remote copy (supports iSCSI host attachment by default)

Group 1 – Ports that belong to remote-copy port group 1 Group 2 – Ports that belong to remote-copy port group 2

The system will select one pair of IP addresses within port groups 1 and 2, one address on each system, and will open a remote copy connection between them.

References:https://www.ibm.com/support/knowledgecenter/STHGUJ_7.6.1/com.ibm.storwi ze.tb5.761.doc/svc_remotecopyportgroups.html

Question No: 12

A customer is deploying an IBM Storwize V7000 and wants to grow the system to 32 PB of addressable space.

Which extent size is needed to meet this requirement?

  1. 8192 MB

  2. 4096 MB

  3. 2048 MB

  4. 1024 MB

Answer: A Explanation:

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References: IBM System Storage SAN Volume Controller and Storwize V7000, Best Practices and Performance Guidelines, Page 289 http://www.redbooks.ibm.com/redbooks/pdfs/sg247521.pdf

Question No: 13

When using IBM Storwize family, which IBM software provides application consistent point- in-time copies?

  1. IBM Cloud Object Storage

  2. IBM Spectrum Protect Snapshot

  3. IBM Spectrum Protect for Space Management

  4. IBM Spectrum Control Base Edition

Answer: B Explanation:

IBM Spectrum Protect Snapshot (formerly known as IBM Tivoli FlashCopy Manager) uses advanced snapshot capabilities of disk subsystems to create application, database, and VM-aware point-in-time snapshots.

References: IBM Spectrum Family, IBM Spectrum Control Standard Edition, page 237 http://www.redbooks.ibm.com/redbooks/pdfs/sg248321.pdf

Question No: 14

In addition to pre-sale, what is the other type of Technical and Delivery Assessment (TDA)?

  1. Post-sale

  2. Pre-install

  3. Pre-delivery

  4. Post-warranty

Answer: B Explanation:

TDAs can be performed pre-sale, pre-installation, or post-installation. References:http://joehertvik.com/an-ibm-technical-delivery-assessment-primer/

Question No: 15

The users within a department require a shared folder on their Windows desktop. Which protocol accomplishes this requirement?

  1. GPFS

  2. CIFS

  3. NFS

  4. HTTPS

Answer: B Explanation:

You can connect to a CIFS share using a CIFS client, such as Microsoft Windows.

The Common Internet File System (CIFS) is the standard way that computer users share files across corporateintranets and the Internet. An enhanced version of the Microsoft open, cross-platform Server Message Block (SMB) protocol, CIFS is a native file-sharing protocol in Windows.

References:http://www.ibm.com/support/knowledgecenter/ST5Q4U/com.ibm.storwize.v700 0.unified.141.doc/usgr_cnnctng_via_cifs_frm_wndws.htmlhttps://technet.microsoft.com/en- us/library/cc939973.aspx

Question No: 16

A customer is complaining about poor disk performance and has updated the controller code to the 7.3 release in an attempt to resolve this concern. A review of the storage identifies a disk pool which contains seven MDisks as the potential problem.

The MDisk assignment is:

Four MDisks are configured as 8-drive RAID 5 Three MDisks are configured as 6-drive RAID 5

You point out that his practice may be the cause of the performance concern. Which steps should be recommended to the customer?

  1. 1. Create new MDisks constructed as an 8-drive RAID 5, add them to the disk pool.2. Remove each of the 6-drive MDisks from the pool.3. Let the automatic disk pool rebalance feature in the 7.3 code rebalance in the data across the MDisks.

  2. 1. Add two extra drives to each MDisk containing only sex drives.2. Use the automatic disk pool rebalance feature in the 7.3 code to rebalance the data across the MDisks.

  3. 1. Create new MDisks constructed as an 8-drive RAID 5, add them to the disk pool.2. Use a script to rebalance the data across the MDisks.3. Remove each of the 6-drive MDisks from the pool.

  4. 1. Add two extra drives to each MDisk containing only six drives.2. Use a script to rebalance the data across the MDisks.

Answer: A Explanation:

What you have to do is create a new Disk Group (mdisk) and add to your existing Pool (mdiskgrp).

The new versions ofSVC / Storwize Version 7.3 can automatically rebalance the workloads across the mdisks. If you have switched this on, this rebalance script should no longer be used.

Question No: 17

A customer is concerned that its volumes would not have access to the full system cache but wants to create pools to limit the amount of space that different departments use.

Which activity allows the customer to meet these requirements?

  1. Create several small pools that correspond to LUN size policies

  2. Create a single storage pool that contains all the MDisks

  3. Create LUN size policy in the GUI and set system cache to global via the CLI

  4. Create a single parent pool that contains smaller child pools

Answer: D Explanation:

Before V7.4, the disk space of a storage pool was provided from MDisks, so the capacity of a storage pool depended on the MDisks’ capacity. Creating or splitting a storage pool is not possible and a user cannot freely make astorage pool with a particular capacity they want. A child pool is a new logical object that is created from a physical storage pool and

provides most of the functions that Pools have (for example, volume creation), but the user can specify the capacity ofthe child pool at creation.

A child pool is an object similar to a storage pool, and can be used interchangeably with a storage pool. It supports volume copy and migration.

References: Implementing the IBM Storwize V7000 and IBM Spectrum Virtualize V7.6, page 89


Question No: 18

A customer has a requirement for highly available data in their IBM Storwize environment and currently uses IBM Spectrum Virtualize Software V7.5. The process to enable a volume to be addressed by two I/O groups simultaneously is challenging.

How can the customer benefit from upgrading to V7.6 of the software?

  1. HyperSwap GUI support

  2. Two I/O groups supported by two nodes

  3. Remote mirroring cluster support

  4. Stretch cluster wizard

Answer: A Explanation:

New functionalities in the Version 7.6 release of SpectrumVirtualize include:

HyperSwap GUI support: Current local HyperSwap is functionally complete, but requires complex configuration through the existing command-line interface. This new release of HyperSwap offers a new command-line interface which greatly simplifies the set up process to a handful of commands, and also adds the ability to configure and manage local HyperSwap through the GUI.

References:http://www-01.ibm.com/common/ssi/cgi- bin/ssialias?subtype=caamp;infotype=anamp;appname=iSourceamp;supplier=897amp;letternum=ENUS 215-391

Question No: 19

A customer wants to create file shares for its Windows clients. The customer is interested in an IBM Storwize V7000 Unified.

Which protocol should the customer use for file-sharing?

  1. SMB

  2. NFS

  3. SNMP

  4. iSCSI

Answer: B Explanation:

Using the NFS protocol, you can transfer files between computers running Windows and other non-Windows operating systems, suchas Linux or UNIX.

Note:Shares and exports can be managed through the GUI or CLI by Storwize V7000 Unified administrative users that have a user role definition that is authorized to perform share and export management functions.

A share or export results from making a disk space accessible through the protocols specified during its creation. HTTP, SCP, FTP, CIFS and NFS shares and exports can be created, provided that the corresponding protocol is enabled for the system. Shares and exports can only be created for data that is stored in the GPFS file system of the Storwize V7000 Unified system. Non-GPFS file system content cannot be shared or exported.

References:https://technet.microsoft.com/en-us/library/jj592688(v=ws.11).aspx http://www.ibm.com/support/knowledgecenter/ST5Q4U/com.ibm.storwize.v7000.unified.14 3.doc/mng_exports_topic_welcome.html

Question No: 20

A customer is looking to replicate data to its disaster recovery location. The customer has gathered data about I/O and throughput to the storage.

Which piece of information is needed to properly size the bandwidth needed between the two locations?

  1. Peak write IOPS

  2. Peak write MBps

  3. Peak read IOPS

  4. Peak read MBps

Answer: A Explanation:

Sizing the systems for replication

  • Metro Mirror has the least impact to the amount of IO a system can handle, as it has the lowest overhead.

  • Regular Global Mirror further lowers the maximum throughput of the system, and the increase in host write response time depends on the quantity of IO being replicated via Global Mirror. The main cause of increased write response time is spikes of host write IO that there#39;s insufficient partnership bandwidth to replicate instantly, but we have seen cases where the increased overhead of the Global Mirror processing has made a workload unusable.

    References:https://www.ibm.com/developerworks/community/blogs/storwizecopyservices/e ntry/sizingreplication?lang=en

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