IBM IBM Certified Specialist - Storwize Family Technical Solutions V4 C9020-562 Questions & Answers

• Question 31:

  A customer has several large disk systems serving up block data over Fibre Channel that are of varying degree of utilization and needs to constrain growth and manage performance. The disk systems are made by EMC, Huawei, Bull, and IBM.

  Which IBM software solution should be discussed?

  A. IBM Spectrum Control Base Edition

  B. IBM Virtual Storage Center for Storwize

  C. IBM Cloud Object Storage

  D. IBM Spectrum Scale

  Correct Answer: B

  IBM VirtualStorage Center for Storwize provides a lower-cost alternative to Fibre Channel- based

  replication that is easily configurable in existing IP infrastructures, eliminating the need for FCIP routers

  and dark fibre.

  SAN Volume Controller can virtualize IBM andnon-IBM storage (over 170 systems from IBM, EMC, HP,

  HDS, Sun, Dell, NetApp, Fujitsu, NEC, Bull)

  References: IBM Storwize Family Software, (SVC and Storwize), Product Roadmap, page 4 https://

  www.ibm.com/developerworks/community/files/form/anonymous/api/library/c18c45e 6-e212-4b38-a28e6c74534ba5e2/document/4555d51c-465b-4093-bb06- ca70861e2e3e/media

• Question 32:

  How does the IBM Storwize native IP replication provide optimal utilization of the IP network?

  A. It communicates with external WAN Optimization devices to achieve maximum efficiency.

  B. It uses Real-time Compression of data prior to replication.

  C. It usesartificial intelligence and sends multiple parallel streams.

  D. It utilizes intelligent switches in the network to minimize latency.

  Correct Answer: C

  The native Internet Protocol (IP) replication feature enables replication between any SVC/Storwize family

  memberrunning code version 7.2 or higher, using the built-in networking

  ports of the cluster nodes. Following a recent partnership with IBM, it uses SANslide technology developed

  by Bridgeworks Limited of Christchurch, UK. They specialize in products that can bridge storage protocols

  and accelerate data transfer over long distances.

  Adding this technology at each end of a wide area network (WAN) Transmission Control Protocol/Internet

  Protocol (TCP/IP) link significantly improves the usage of the link. It does this by applying patented Artificial

  Intelligence (AI) to hide latency normally associated with WANs.

  The technology built into the SVC/Storwize code uses TCP/IP latency to its advantage. Rather than wait

  for the acknowledgment to come back, it sends more sets of packets across other virtual connections. The

  number of virtual connections is controlled by the AI engine.

  This improves WAN connection use, which results in a data transfer rate approaching full line speed.

  References: IBM SAN Volume Controller and Storwize Family Native IP Replication, page http://

  www.redbooks.ibm.com/redpapers/pdfs/redp5103.pdf

• Question 33:

  Which GUI option forces arrays to use only the preset number of drives when adding or editing arrays in Capacity Magic?

  A. Optimize for performance

  B. Use child pools

  C. Optimize for capacity

  D. Use RtC

  Correct Answer: C

  The GUI storageconfiguration wizard does not know that this storage is mapped to another SAN Volume Controller/Storwize, it can create unbalanced arrays (when optimize for capacity is chosen) or it can leave some drives unconfigured (if optimize for performance is chosen). References: IBM System Storage SAN Volume Controller and Storwize V7000 Best Practices and Performance Guidelines (4 Aug 2016), page 88

• Question 34:

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

  A. Post-sale

  B. Pre-install

  C. Pre-delivery

  D. Post-warranty

  Correct Answer: B

  TDAs can be performed pre-sale, pre-installation, or post-installation.

  References:http://joehertvik.com/an-ibm-technical-delivery-assessment-primer/

• Question 35:

  A customer has acquired a new business and wants to bring its systems and storage under corporate systems. The company has an IBM SVC in the environment to manage all storage.

  What must the customer do with the volumes from the new businesses storage to bring them under IBM Spectrum Virtualize management?

  A. Import the volumes using Volume Mirror

  B. Import the volumes using Managed mode

  C. Import the volumes in Image Mode

  D. Import the volumes as a storage pool

  Correct Answer: C

  Image mode volumes are used to migrate LUNs that were previously mapped directly to host servers over to the control of the IBM Spectrum Virtualize system.

  Note: mkimagevolume Create a new image mode volume. This command can be used to import a volume, preserving existing data.

  References:Implementing the IBM Storwize V7000 and IBM Spectrum Virtualize V7.8, page 215 http://www.redbooks.ibm.com/redpieces/pdfs/sg247938.pdf

• Question 36:

  A cloud solution is being planned using the IBM Storwize family to provide storage for multiple clients on IBM Power and Intel hosts.

  Which solution provides the necessary storage for the primary site and a disaster recovery location at a data center 1500 kilometers away?

  A. Create a four node IBM Storwize V7000 cluster with one I/O Group at the primary data center and the other at the disaster recovery location. Use FlashCopy to copy the volumes from the primary I/O Group to the disaster recovery I/O Group.

  B. Create volumeson IBM Storwize V7000 storage at the primary data center and use Global Mirror to create copies on an IBM Storwize V7000 at the disaster recovery location.

  C. Create volume mirrors on IBM Storwize V7000 storage at the primary data center with virtualizedexternal IBM Storwize V3700 storage at the disaster recovery location.

  D. Create volumes on IBM Storwize V7000 Storage at the primary data center and use Metro to create asynchronous copies on an IBM Storwize V5030 at the disaster recovery location.

  Correct Answer: B

  Metro Mirror and Global Mirror are technologies that enable you to keep a real-time copy of a disk at a remote site that contains another SVC Cluster or Storwize V7000 system.

  Incorrect Answers

  A: FlashCopy is a function that allows you to create a point-in-time copy of one of your SVC disks. This might be helpful when performing backups or application testing. These copies may be cascaded upon one another, read from, written to, and even reversed. These copies are able to conserve storage, if needed, by being space-efficient copies that only record items that have changed from the originals instead of full copies.

  C: Volume Mirroring is a function designed to increase high availability of the storage infrastructure. It provides the ability to createup to two local copies of a volume.

  References: IBM System Storage SAN Volume Controller and Storwize V7000 Replication Family Services, page 22 http://www.redbooks.ibm.com/redbooks/pdfs/sg247574.pdf

• Question 37:

  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?

  A. Peak write IOPS

  B. Peak write MBps

  C. Peak read IOPS D. Peak read MBps

  Correct Answer: A

  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'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

• Question 38:

  Which IBM Storwize Family product possesses the following control enclosure base feature?

  -Memory: standard 16 GB memory system total

  -HIC slot (different options are possible)

  -Standard 10/100/1000 megabits per second (Mbps) Ethernet ports for iSCSI

  -

  Two 2-core, 2 thread processor

  A.

  IBM Storwize V5010

  B.

  IBM Storwize V5020

  C.

  IBM Storwize V3700

  D.

  IBM Storwize V5030

  Correct Answer: D

• Question 39:

  Which component of the IBM Spectrum family helps a customer manage application-aware point-in-time copies on EMC, HDS, and the IBM Storwize family?

  A. IBM Spectrum Protect Snapshot

  B. IBM Copy Services Manager

  C. IBM Spectrum Control with External Virtualization

  D. IBM Spectrum Protect for SAN

  Correct Answer: A

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

• Question 40:

  A company has added a second control enclosure to an IBM Storwize V7000 to provide more storage for several servers.

  What must be done to the host systems before mapping volumes from the new I/O group?

  A. Ensure the hostzoning is in place for the new I/O group

  B. Double the queue depth on each volume

  C. Verify host mirroring is in place for the volumes

  D. Install additional HBAs for connectivity to the new I/O group

  Correct Answer: A

  The number of paths to a volume from a host to the nodes in the I/O Group that owns the volume must not exceed eight, even if eight is not the maximum number of paths supported by the multipath driver (SDD supports up to 32). To restrict the number of paths to a host volume, the fabrics must be zonedso that each host FC port is zoned to no more than two ports from each Storwize V7000 Gen2 node in the I/O Group that owns the volume.

  References: