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IBM C9020-562 問題練習

IBM Storwize Family Technical Solutions V4 試験

最新更新時間: 2021/01/08,合計54問。

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Question No : 1
An IBM technical specialist has positioned the IBM FlashSystem V9000 storage solution to meet a customer's requirement for a storage solution to host high lOPS with low latency workloads. The IBMFlashSystem V9000 uses an IBM patented Variable Stripe RAID with two dimensional Flash RAID technology.
Which statements describe these features?

正解:
Explanation:
IBM Variable Stripe RAID is a patented IBM technology that provides an intra-module RAID stripe on each flash module.
With two-dimensional (2D) Flash RAID, system-wide RAID 5 along with Variable Stripe RAID helps reduce downtime and maintain performance, and enables the provisioning of an entire flash moduleas a spare to be used in another flash module failure.
References: Introducing and Implementing IBM FlashSystem V9000, page 22
http://www.redbooks.ibm.com/redbooks/pdfs/sg248273.pdf

Question No : 2
Which network authentication protocol is supported on the IBM Storwize V7000 Unified storage system, is used for client/server applications, and provides symmetric key cryptography?

正解:
Explanation:
Kerberos
To provide heterogeneous file sharing for Unix and Windows, the Storwize V7000 Unified system must support authentication methods for Unix and Windows. The Storwize V7000Unified system uses Windows authentication for incoming CIFS connections and Unix authentication for incoming NFS, HTTP, SFTP and SCP connections.
Kerberos is a network authentication protocol for client/server applications that uses symmetric key cryptography.
Note: User password in clear text format is never sent over a network; the Kerberos server grants a ticket to the client for a short span of time. This ticket is used while communicating with the server to obtain access to the service, such as a file server. The Windows based authentication is based on Kerberos. MIT Kerberos is a free implementation of the Kerberos protocol, which is provided by the Massachusetts Institute of Technology.
References:
http://www.ibm.com/support/knowledgecenter/STSQ4U/com.ibm.storwize.v7000.unified.142.doc/mng_authentication_basic_concepts.html

Question No : 3
A customer is installing a new IBM Storwize V7000 model 524.
What should the customer do to access the management GUI for the first time?

正解:
Explanation:
You can use the management GUI to manage your system as soon as you have completed the USB flash drive initialization.
Note: Accessing the Storwize V7000 Unified management GUI Procedure
References:
http://www.ibm.com/support/knowledgecenter/STSQ4U/com.ibm.storwize.v7000.unified.142.doc/ifs_accessmgmtgui_3422yu.html

Question No : 4
What must be configured and installed to use VMware virtual volumes (vVols) with IBM Storwize solutions?

正解:
Explanation:
Three core software components are needed for a successful implementation of VVols. The minimum code level required for each component is provided in the following list:
* IBM Spectrum Control Base Edition (SCB) version 2.2.1 (or higher)
* Compatible storage system running IBM Spectrum Virtualize version 7.6.0 (or higher
* VMware vSphere 6.0 (or higher):
- VMware ESXi version 6.0
- VMware vCenter Server 6.0 or vCenter Server Appliance (vCSA) 6.0 (vSphere Web Client 6.0))
We use the term VVols-enabled host to describe a host that meets the following requirements:
* VMware ESXi (ESXi) version 6.0 or later installed.
* Registered with the storage system with host type set to VVol. Note that in the CLI, the VVol host type is referred to as adminlun.
References:
Configuring VMware Virtual Volumes for Systems Powered by IBM Spectrum Virtualize, page 6, page 11
http://www.redbooks.ibm.com/redbooks/pdfs/sg248328.pdf

Question No : 5
A customer experienced an issue on a mission-critical application during overnight processing. The customer needs help understanding exactly when the problem happened and help withtroubleshooting.
Which feature of IBM Spectrum Control aids the customer?

正解:
Explanation:
IBM Spectrum Control provides multiple user interfaces for viewing reports about the storage infrastructure in an enterprise environment.
You can view reports that are customized to use information from IBM Spectrum Control. The reports include fabric connections, storage mapping information, and performance metrics for storage systems.
References:
http://www.ibm.com/support/knowledgecenter/SSSR93_5.2.11/com.ibm.spectrum.sc.doc/fqz0c_webbasedgui_rpting_ic_ov.htmI

Question No : 6
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?

正解:
Explanation:
Using the NFS protocol, you can transfer files between computers running Windows and other nonWindows operating systems, such as 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 thecorresponding 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 systemcontent cannot be shared or exported.
References:
l https://technet.microsoft.com/en-us/library/jj592688(v=ws.11).aspx
http://www.ibm.com/support/knowledgecenter/STSQ4U/com.ibm.storwize.v7000.unified.143.doc/mng_exports_topic_welcome.html

Question No : 7
A state government education system is implementing a cloud solution for schools to plan and score standardized testing. The client needs a solution that supports file and block data for its environment.
Which IBM Storwize product should the IT architect recommend to maximize storage space using compression?

正解:
Explanation:
Storwize V7000 is designed for all-flash or hybrid storage, while Storwize V7000 Unified is designed for block and file needs.
When you choose Storwize V7000 Unified and Storwize V7000, you gain the most advanced storage technologies to unlock the business value of your stored data, including virtualization and IBM Realtime Compression.
References: http://www-03.ibm.com/systems/storage/disk/storwize_v7000/

Question No : 8
Which statement describes the full set of enhancements of IBM Spectrum Protect for the IBM Storwize Family?

正解:
Explanation:
* IBM Spectrum Protect deployment options include cloud services, integrated appliances and capacity-based solution bundles.
Application-aware and Virtual Machine optimized options enable customized data protection for critical workloads.
* IBM Spectrum Protect Snapshot manages application-aware snapshots on EMC, Hitachi, NetApp, IBM and VSS-compatible Windows storage.
References:
http://www-03.ibm.com/software/products/en/spectrum-protect-snapshot

Question No : 9
Which GUI option forces arrays to use only the preset number of drives when adding or editing arrays in Capacity Magic?

正解:
Explanation:
The GUI storage configuration 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 No : 10
A data center provides a Cloud Software as a Service environment primarily for websites and online transactions. Each client is allocated a standard 400GB LUN for storage. The data center wants toreclaim usable capacity and avoid the need to purchase new disks.
How can this be achieved using IBM Storwize V5020?

正解:
Explanation:
Store up to five times as much active data in the same physical space with IBM Real-time Compression. It is supported by the three Storwize V5000 hybrid models: IBM Storwize V5030, IBM Storwize V5020 and IBM Storwize V5010.
References: http://www-03.ibm.com/systems/storage/disk/storwizev5000/overview.htmI

Question No : 11
Use a script to rebalance the data across the MDisks.

正解: A
Explanation:
What you have to do is create a new Disk Group (mdisk) and add to your existing Pool (mdiskgrp).
The new versions of SVC / 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 : 12
In addition to pre-sale, what is the other type of Technical and Delivery Assessment (TDA)?

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

Question No : 13
A customer is investigating replicating data between IBM Storwize V7000 for DR purposes and has made the following calculations to help determine the correct capacity for the intersite link.
Customer formula used
Amount of data replicated within 24 hours, multiplied by 4 (to allow for peaks and re-sync), translated into bit rate over the 24-hour period.
Customer calculations
-2GB of data per day
-2GB * 4 =8GB of data
-8GB* 8 bits= 64GB I 86400 seconds
-68,719,476,736 I 86400 = 795,364 bits/second bandwidth
The customer has advised that the working day is 8 hours.
What is the status of the calculations?

正解:
Explanation:
The calculation is correct for a 24 hour workday, but as the workday is only 8 hours, the calculation is off by a factor 3.

Question No : 14
Where is the master encryption key supplied for an IBM Storwize V7000 at power on?

正解:
Explanation:
The master keys are stored on USB sticks at the time of array creation.
This encryption support means drives themselves can be protect from malicious removal - and if drives fail and need to be replaced you can be sure that nobody can read the data from the failed drives.
References:
https://www.ibm.com/developerworks/community/blogs/storagevirtuaIization/entryInew_svc_and_storwize_v74_software?lang=en

Question No : 15
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 1/0 groups simultaneously is challenging.
How can the customer benefit from upgrading to V7.6 of the software?

正解:
Explanation:
New functionalities in the Version 7.6 release of Spectrum Virtualize 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 newcommand-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/cgibin/ssialias?subtype=ca&infotype=an&appname=iSource&supplier=897&1etternum=ENUS215-391

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