IBM Storage Technical V1 온라인 연습
최종 업데이트 시간: 2022년06월26일,558문제.
당신은 온라인 연습 문제를 통해 IBM C9020-668 시험지식에 대해 자신이 어떻게 알고 있는지 파악한 후 시험 참가 신청 여부를 결정할 수 있다.
시험을 100% 합격하고 시험 준비 시간을 35% 절약하기를 바라며 C9020-668 덤프 (최신 실제 시험 문제)를 사용 선택하여 현재 최신 215개의 시험 문제와 답을 포함하십시오.
정답:
Explanation:
Grid elements installed must all be the same type (interface options and MicroLatency module size). An intermix of interface options or MicroLatency module capacities is not supported.
Note: Two grid controllers and one flash enclosure are combined to make one grid element.
Capacity, caching, and processing power are added at the same time by adding in one or more grid elements to scale up.
IBM Flash System A9000R consists of 2 - 6 grid elements, where a partially populated rack (2 - 5 grid elements) is expanded by adding grid elements to the maximum number of six-grid elements.
정답:
Explanation:
IBM FlashSystem 900 is designed to accelerate the applications that drive business C like those using an Oracle Database.
IBM FlashSystem 900 can scale usable capacity from as low as 2 TB to as much as 57 TB in a single system.
FlashSystem 900 delivers Tier 0 top application performance with up to 1.1 million 100% random read IOPS and 600,000 100% random write IOPS.
정답:
Explanation:
IBM Spectrum Scale provides a global namespace.
References:https://www.ibm.com/support/knowledgecenter/en/STXKQY_4.2.1/com.ibm.spectrum.scale.v4r21.doc/bl1ins_intro.htm
정답:
Explanation:
A minimally populated rack for models 281x-114 and 281x-214 contains three data modules and three interface modules, for a total of six modules.
A fully populated rack contains nine data modules and six interface modules, for a total of 15 modules.
References:https://www.ibm.com/support/knowledgecenter/en/STJTAG/com.ibm.help.xivgen3.doc/Gen3/PG/xiv_pln3rackconfigurations.html
정답:
Explanation:
IBM XIV Cloud Storage for Service Providers, or client hosted cloud solutions require elastic, rapid response, and dynamic demand that is captured within XIV’s 485 TB linear scalability, and the immediate and automatic redistribution, without interruption, of added capacity. The grid design stripes data across all modules and disks, incorporating data redundancy for consistent and predictable I/O performance that is always load balanced.
정답:
Explanation:
An encryption policy configuration is the set of rules, or policies, that specify which volumes are to be encrypted.
References: https://www-01.ibm.com/support/docview.wss?uid=ssg1S7005315&aid=1
IBM TS7700 Version 4 Release 1, Introduction and Planning Guide, page 123
정답:
Explanation:
Data Reduction Estimator tool is a command-line host-based utility for estimating the data reduction saving on block devices.
In order to help with the profiling and analysis of existing user workloads that need to be migrated to a new system, IBM provides a highly accurate data reduction estimation tool which supports both deduplicationand compression. The tool operates by scanning target workloads on any legacy storage array (IBM or 3rd party) and then merging all scan results to provide an integrated system level data reduction estimate.
References:https://delivery04.dhe.ibm.com/sar/CMA/SSA/06hb9/3/Data_Reduction_Estimation_Tool-1.02.htm
정답:
Explanation:
Write-once, read-many (WORM) tape cartridge characteristic. WORM format pervades the entirety of every WORM cartridge. The WORM tape media is formatted to give every block on a WORM cartridge write-once, read-many protection. Additionally, the cartridge memory (CM) has a WORM indicator byte in the cartridge type field.
정답:
Explanation:
IBM FlashSystem A9000 can use the well-established IBM code base for OpenStack and REST API support.
IBM Spectrum Control Base V3.0 allows a simplified deployment and efficient integration of IBM FlashSystem A9000 with the VMware vCloud suite.
The FlashSystem A9000R data reduction node implements data deduplication and compression functions.
A9000 provides consistent and predictable microsecond response times and simplicity that you need.
References:http://www.redbooks.ibm.com/redpapers/pdfs/redp5325.pdf
IBM FlashSystem A9000 Product Guide
정답:
Explanation:
All TS7700 models can coexist in a grid. If only a disk and a tape-attached model are combined, that configuration is called a hybrid grid.
정답:
Explanation:
You must have a license for the replication feature for each ProtecTIER server in the replication grid.
References:https://www.ibm.com/support/knowledgecenter/en/STVRB7_3.2.0/ts7650ipg_replication.html
정답:
Explanation:
Consistency groups creates a consistent point-in-time copy of multiple volumes, with negligible host impact. You can enable FlashCopy consistency groups from the DS CLI.
Note: Recovery Point Objective (RPO) describes the interval of time that might pass during a disruption before the quantity of data lost during that period exceeds the Business Continuity Plan’s maximum allowable threshold or “tolerance.”
References:https://www.druva.com/blog/understanding-rpo-and-rto/
정답:
Explanation:
Uniquely among IBM products, the XIV Storage System offers hot encryption. When encryption is enabled on the XIV system, all data that resides on it is encrypted within minutes, with no performance impact.
References:https://www.ibm.com/support/knowledgecenter/en/STJTAG/com.ibm.help.xiv.doc/xiv_elearning_reinventingstoragewithxivscript.htmlIBM XIV Security with Data-at-Rest Encryption, page 2
정답:
Explanation:
When an IBM XIV disk fails, all disks in the system participate in the rebuild. The outcome? It takes less time for theXIV system to restore full redundancy. For example, if a disk on a fully used 1 TB drive system fails, XIV restores full redundancy in an average of 30 minutes or less, and without a significant performance penalty. Traditional RAID systems might take up to a day to restore data reliability, with performance compromised during rebuild. The fast XIV rebuild time means that your data spends less time that is exposed to risk. In this way, the XIV system actually protects your data more than traditional enterprise storage systems can.
정답:
Explanation:
IBM FlashSystem A9000R also incorporates autonomic and proactive monitoring and self-healing features. These features enable preventive measures to preserve data redundancy before a component malfunction occurs.
References: IBM FlashSystem A9000R Product Guide, page 14
http://www.redbooks.ibm.com/redpapers/pdfs/redp5326.pdf