 EMC E20-542 : VMAX3 Solutions and Design Specialist exam for Technology Architects ExamExam Dumps Organized by Changming
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Exam Number : E20-542
Exam Name : VMAX3 Solutions and Design Specialist exam for Technology Architects
Vendor Name : EMC
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E20-542 exam Format | E20-542 Course Contents | E20-542 Course Outline | E20-542 exam Syllabus | E20-542 exam Objectives
Exam Title :
Dell EMC Certified Specialist - Technology Architect - VMAX3 Solutions Specialist (DECS-TA)
Exam ID :
E20-542
Exam Duration :
90 mins
Questions in exam :
60
Passing Score :
63%
Official Training :
VMAX3 Fundamentals (MR-1WP-VMAXFD),
VMAX3 Local Replication Fundamentals (MR-1WPVMAXLRFD)
VMAX3 Remote Replication Fundamentals (MR-1WPVMAXRRFD)
Exam Center :
Pearson VUE
Real Questions :
Dell EMC VMAX3 Solutions and Design Specialist Real Questions
VCE Practice Test :
Dell EMC E20-542 Certification VCE Practice Test
VMAX3 Configuration Management 28%
- VMAX3 Array Configuration and storage provisioning concepts
- Virtual provisioning concepts and automated tiering
- Storage allocation using autoprovisioning groups
- Device creation and port management
- Monitor storage resource pools and SLO compliance
- Workload Planning with Unisphere for VMAX
- eNAS Management
VMAX3 Business Continuity Management 35%
- TimeFinder SnapVX operations with SYMCLI and Unisphere for VMAX
- SRDF operations in synchronous (SRDF/S) and asynchronous (SRDF/A) modes using SYMCLI and Unisphere for VMAX
Unisphere for VMAX Implementation and Management 7%
- Unisphere for VMAX functionality and architecture
- Navigating the Unisphere for VMAX GUI
- VMAX administration using Unisphere for VMAX
- Service level-based provisioning
VMAX3 Solutions Design 30%
- Best practices for designing a VMAX3 solution
- Designing a VMAX3 solution with VMAX Sizer
- Remote replication – Network connectivity considerations
- Designing SRDF/S solutions
- Designing SRDF/A solutions
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EMC and cheat sheet
As statistics volumes continue to upward thrust via double-digit percentages each year, IT managers face a hard fact. now not only must they find room to shop all this counsel, they additionally must preserve it effortlessly accessible, protected from technical system defects and protected from mess ups.
at the conclusion of 2010, the quantity of stored information global totaled 1.2 million petabytes (1 petabyte equals 1 million gigabytes), in response to the 2010 IDC Digital Universe look at, carried out via expertise researcher IDC. That’s a 50 % rise from the 12 months earlier than.
the way for a company to thrive in an atmosphere of exponentially increasing facts stores, along with considerations about business continuity, is to enforce a multipronged storage approach — one which goes past spending greater cash to acquire additional storage potential.
Analysts and vendors say the solution is to create tiers of storage for primary and backup statistics, as well as for catastrophe healing (DR) and archived information. right here’s what a modern company IT infrastructure must keep records safe and extremely obtainable.
Tier One: simple Storage
simple storage techniques should manage essentially the most-used advice with the aid of relying on applied sciences that carry the quickest records access rates. customarily, getting the fastest fees requires deploying strong-state drives, excessive-efficiency SCSI disk drives and Fibre Channel arrays. These technologies are speedy and legitimate, but are also essentially the most expensive.
companies can justify the expenses by retaining their most vital data on these efficiency stars simplest so long as needed, which is as long as stakeholders are actively using the data for core business needs. As assistance a while, computerized administration software can circulation it to other storage tiers made from less high priced add-ons.
To get probably the most out of high priced tier-one hardware, corporations can use storage virtualization and thin-provisioning technologies. Virtualization creates an enterprisewide pool of storage skill via aggregating storage area network (SAN) and network-connected storage (NAS) gadgets, two solutions for creating smaller, localized storage pools. Virtualization also lets organisations centrally manage these storage supplies and scale up potential without production downtime that impairs company continuity.
thin provisioning builds on storage virtualization via letting IT managers dynamically allocate accessible storage potential within the business pool. If one array has additional terabytes of capacity and a different array is starved for house, managers can instantly divvy up components between them.
Virtualized storage environments can also immediately shift substances in keeping with pre-set circumstances. users crunching numbers or finalizing a quarterly production evaluation won’t be plagued by these behind-the-scenes actions.
Tier Two: Backup Storage
once all fundamental statistics is virtualized, the business can effortlessly flow copies to a tier-two backup layer for brought protection. professional storage hardware is a have to for tier two, but excessive efficiency isn’t as crucial as for the primary tier.
businesses can build the backup layer with arrays the usage of much less expensive iSCSI and SATA tough drives. To be sure these accessories are used efficiently, IT managers should still additionally put in force facts deduplication applied sciences to evade backing up redundant suggestions and wasting storage potential.
“File deduplication boils right down to an easy thought,” says Joe Disher, options advertising manager for Overland Storage. “There isn't any need to have the same PowerPoint document or the equal observe document stowed in 25 distinct folders.”
facts dedupe can cut back the volume of stored facts with the aid of an element of 10, provides Peter Elliman, senior supervisor for product advertising in Symantec’s tips administration group. besides removing waste, groups can replica all their important facts to tier-two techniques during allotted, after-hours backup home windows.
companies are actually pushing to get even more price out of deduplication. agencies traditionally filtered information via dedupe software earlier than it reached target storage gadgets — those who sat in the back of the backup server in their backup environments. Now the focal point is also on dedupe on the client stage, namely the servers the place facts lives.
“This reduces the facts movement further upstream, which ability you don’t want greater pipes to move all of the transforming into information round your community,” Elliman says. The aggregate of target and client deduplication can cut back the volume of facts being moved via as an awful lot as 99 %, he provides.
Tier Three: catastrophe recovery
This third storage tier acts as the coverage for when the unthinkable happens: a wide-scale catastrophe that destroys particular person storage arrays or a complete information core, taking crucial facts together with it.
a success DR planning encompasses both local facts replication, to protect in opposition t minor outages, and lengthy-distance replication to a disaster recovery website headquartered outside of the geographical place of the primary data center. This guarantees that one event received’t take down both elements. IT managers want diverse recommendations for each of those replication necessities.
an outstanding alternative for local replication comprises storage arrays using SAN gadgets built with Fibre Channel and iSCSI connectivity. Some units come with two controllers, so if one component fails the other immediately takes over to hold operations working. attaining redundancy and replication among components inside a single container makes this a cost-effective choice for high availability.
For extra reliability, but at a higher rate, companies can choose to connect identically configured, single-controller SANs collectively into so-called active-lively clusters. If one unit crashes, the other instantly takes over the extra responsibilities.
“i can have one gadget absolutely die, all of the disks capture on fireplace,” Overland Storage’s Disher says. “And it doesn’t depend; I don’t lose any software availability.”
decisions for long-distance replication come right down to weighing the professionals and cons of synchronous or asynchronous information replication. With synchronous replication, data moves one at a time from the primary web page to the DR web site.
The main website doesn’t send the subsequent chunk except the DR place confirms the earlier transfer has successfully completed. This ensures that no information is lost all through replication as a result of brief community outages or different problems. although, distance barriers can be an issue for some companies.
Synchronous replication requires websites to be less than 100 miles aside (drastically less in some instances, counting on WAN qualities and other components). Some companies overcome this problem with a sequence of intermediate websites that relay records between the fundamental and the DR websites.
Asynchronous replication avoids stringent distance barriers and communication delays via sending records continually with no collection of lower back-and-forth confirmation messages. The trade-off, besides the fact that children, is that asynchronous replication doesn’t offer safeguards towards competencies data losses during transmission.
How do you come to a decision? Analyze facts to verify what’s less important and what can tolerate probably the most dangers of asynchronous replication. offer protection to records that requires the most efficient care with greater costly synchronous replications.
The technical challenges and WAN prices associated with replication drive many corporations to stick to tape storage. whereas tape has been round for awhile, it is still a tried-and-real know-how for disaster healing operations.
With tape, organisations can safely keep information in diverse, geographically dispersed places and, in some situations, at enhanced recovery times. this is notably valuable when facts volumes are big sufficient to pressure networks if a DR web site has to add a full records save to a main facility.
Tier four: facts Archives
information archiving is the manner of relocating facts deemed inactive to a storage equipment for long-term retention. reasonable and reliability additionally make the newest tape technologies a main option for information archives.
information in this layer is older and rarely accessed. still, these info stay beneficial adequate to fall inside company or regulatory retention requirements.
smart archiving is accessible. It starts off via understanding what assistance has to be archived and the way the firm values that information.
statistics management tools
To create 4 storage tiers and consequently ship information to the appropriate layers, IT managers want an assortment of records administration equipment. These applications support companies verify the age and the way constantly individuals access selected files.
the use of instructions decided through IT managers, the applications can immediately stream individual information to essentially the most appropriate tier at every point within the statistics’s lifecycle.
information management tools pass a couple of product categories, from assistance lifecycle administration and automatic storage tiering applied sciences to records deduplication, replication, backup and recovery, and archiving solutions.
corporations might also decide to integrate factor products from numerous providers or depend on a pre-built-in suite of items from a single supplier. either way, IT managers need to make sure the final solution can manage information from both physical and digital IT environments.
Clear visibility throughout both of those environments requires close work with group of workers contributors answerable for enforcing and configuring servers. team of workers may still make sure that storage considerations are part of the provisioning technique.
To assist, some of nowadays’s backup equipment can immediately detect and stock digital servers after which identify whether the facts linked to each and every of them is being protected competently.
moreover, some tools support IT managers peer inside digital machines. here's critical as a result of most data recuperation requests are for particular person files, which can be hard to locate inside more than a few virtual machines.
Tiered storage providers encompass EMC, IBM, Overland Storage, Symantec and others. Symantec currently delivered V-Ray, for its NetBackup and Backup Exec items, which lets companies see into virtual machines to superior have in mind the way to offer protection to them.
within the end, excessive availability and fault tolerance have turn into essential aspects of a sound storage administration approach — not separate considerations made after the storage infrastructure is in location.
“the key during this era of high facts increase and high demand, is to build company continuity in from the beginning for simple storage, for backup storage and for archival techniques,” says Eric Herzog, vice chairman of product administration and advertising for EMC's Unified Storage Division.
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