 Symantec 250-505 : Administration of Symantec Data Center Security: Server Advanced 6.0 ExamExam Dumps Organized by Deming
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Exam Number : 250-505
Exam Name : Administration of Symantec Data Center Security: Server Advanced 6.0
Vendor Name : Symantec
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Symantec Center Cheatsheet
As data volumes continue to upward thrust with the aid of double-digit percentages each year, IT managers face a tough fact. now not only need to they find room to store all this suggestions, they additionally ought to retain it with no trouble available, included from technical glitches and protected from mess ups.
at the conclusion of 2010, the volume of stored information global totaled 1.2 million petabytes (1 petabyte equals 1 million gigabytes), according to the 2010 IDC Digital Universe study, conducted by means of technology researcher IDC. That’s a 50 percent rise from the 12 months before.
the manner for a business to thrive in an atmosphere of exponentially expanding information outlets, along with concerns about business continuity, is to enforce a multipronged storage approach — one that goes past spending more cash to acquire further storage skill.
Analysts and carriers say the answer is to create tiers of storage for basic and backup facts, as well as for disaster healing (DR) and archived facts. right here’s what a modern company IT infrastructure needs to hold facts safe and highly available.
Tier One: primary Storage
basic storage programs should still manipulate the most-used suggestions through relying on applied sciences that carry the fastest data entry quotes. usually, getting the fastest charges requires deploying strong-state drives, high-performance SCSI disk drives and Fibre Channel arrays. These applied sciences are fast and authentic, however are additionally the most expensive.
corporations can justify the costs by way of retaining their most vital facts on these performance stars most effective as long as needed, which is so long as stakeholders are actively the use of the facts for core enterprise wants. As counsel a long time, automatic administration utility can stream it to other storage tiers made from much less high priced add-ons.
To get probably the most out of costly tier-one hardware, groups can use storage virtualization and thin-provisioning applied sciences. Virtualization creates an enterprisewide pool of storage ability by aggregating storage area network (SAN) and network-connected storage (NAS) gadgets, two solutions for developing smaller, localized storage swimming pools. Virtualization additionally lets companies centrally manipulate these storage supplies and scale up potential without creation downtime that impairs enterprise continuity.
thin provisioning builds on storage virtualization via letting IT managers dynamically allocate attainable storage ability within the enterprise pool. If one array has extra terabytes of capacity and an additional array is starved for area, managers can instantly divvy up materials between them.
Virtualized storage environments also can automatically shift materials in response to pre-set conditions. clients crunching numbers or finalizing a quarterly creation evaluation won’t be suffering from these in the back of-the-scenes activities.
Tier Two: Backup Storage
once all primary data is virtualized, the enterprise can readily circulate copies to a tier-two backup layer for brought insurance policy. legitimate storage hardware is a have to for tier two, but high efficiency isn’t as critical as for the first tier.
corporations can build the backup layer with arrays the usage of much less expensive iSCSI and SATA challenging drives. To be sure these accessories are used efficaciously, IT managers should still additionally implement information deduplication technologies to prevent backing up redundant counsel and losing storage capacity.
“File deduplication boils right down to a simple thought,” says Joe Disher, options marketing supervisor for Overland Storage. “There isn't any deserve to have the identical PowerPoint doc or the equal note doc stowed in 25 different folders.”
statistics dedupe can in the reduction of the quantity of kept data by a factor of 10, provides Peter Elliman, senior supervisor for product advertising in Symantec’s information management neighborhood. moreover disposing of waste, companies can reproduction all their critical information to tier-two systems right through disbursed, after-hours backup home windows.
companies are actually pushing to get much more cost out of deduplication. corporations traditionally filtered information through dedupe application before it reached target storage instruments — people that sat at the back of the backup server of their backup environments. Now the focus is additionally on dedupe on the client degree, particularly the servers the place information lives.
“This reduces the statistics move further upstream, which skill you don’t need greater pipes to circulate all the turning out to be facts around your community,” Elliman says. The mixture of target and customer deduplication can reduce the quantity of facts being moved by way of as a good deal as 99 percent, he provides.
Tier Three: disaster healing
This third storage tier acts as the protection for when the unthinkable occurs: a large-scale catastrophe that destroys particular person storage arrays or an entire records middle, taking critical facts together with it.
a hit DR planning encompasses each local records replication, to deliver
protection to against minor outages, and lengthy-distance replication to a disaster recovery site founded outdoor of the geographical area of the simple statistics middle. This ensures that one event received’t take down each resources. IT managers want distinctive techniques for each of those replication necessities.
a superb option for native replication comprises storage arrays the use of SAN devices built with Fibre Channel and iSCSI connectivity. Some contraptions come with two controllers, so if one part fails the different automatically takes over to maintain operations running. reaching redundancy and replication amongst components inside a single box makes this an economical choice for prime availability.
For more reliability, but at a much better fee, companies can choose to connect identically configured, single-controller SANs collectively into so-referred to as lively-energetic clusters. If one unit crashes, the other instantly takes over the additional responsibilities.
“i will have one device fully die, the entire disks capture on fireplace,” Overland Storage’s Disher says. “And it doesn’t depend; I don’t lose any utility availability.”
choices for lengthy-distance replication come down to weighing the pros and cons of synchronous or asynchronous information replication. With synchronous replication, information strikes one after the other from the fundamental site to the DR site.
The leading web site doesn’t send the next chunk unless the DR vicinity confirms the earlier transfer has efficaciously completed. This ensures that no records is lost throughout replication on account of brief community outages or other complications. despite the fact, distance barriers can be an issue for some agencies.
Synchronous replication requires sites to be less than one hundred miles apart (greatly much less in some situations, counting on WAN traits and different components). Some corporations overcome this obstacle with a series of intermediate websites that relay data between the simple and the DR sites.
Asynchronous replication avoids stringent distance barriers and verbal exchange delays by means of sending statistics continually with out a collection of back-and-forth confirmation messages. The trade-off, youngsters, is that asynchronous replication doesn’t present safeguards against knowledge information losses all through transmission.
How do you decide? Analyze information to examine what’s less vital and what can tolerate probably the most risks of asynchronous replication. offer protection to records that requires the most reliable care with extra costly synchronous replications.
The technical challenges and WAN fees associated with replication drive many groups to persist with tape storage. whereas tape has been around for awhile, it is still a tried-and-true technology for disaster recuperation operations.
With tape, companies can safely shop information in assorted, geographically dispersed areas and, in some cases, at better healing times. here is in particular advantageous when facts volumes are gigantic enough to strain networks if a DR web site has to add a full data store to a chief facility.
Tier four: data Archives
facts archiving is the method of moving information deemed inactive to a storage machine for long-term retention. reasonably-priced and reliability also make the latest tape technologies a main choice for statistics archives.
counsel during this layer is older and rarely accessed. nevertheless, these data remain constructive sufficient to fall inside corporate or regulatory retention requirements.
sensible archiving is attainable. It begins by means of figuring out what counsel needs to be archived and the way the organization values that information.
records management tools
To create four storage tiers and because of this ship information to the appropriate layers, IT managers need an assortment of data management tools. These applications assist companies assess the age and the way continuously individuals entry specific data.
using guidelines determined by using IT managers, the applications can automatically circulation individual data to essentially the most applicable tier at each aspect in the facts’s lifecycle.
facts management equipment cross a couple of product categories, from suggestions lifecycle administration and automated storage tiering technologies to information deduplication, replication, backup and recuperation, and archiving solutions.
businesses may additionally decide to integrate point products from numerous companies or depend on a pre-built-in suite of products from a single dealer. both means, IT managers need to make certain the final answer can control records from each genuine
and virtual IT environments.
Clear visibility across both of those environments requires close work with body of workers individuals answerable for imposing and configuring servers. workforce may still be sure that storage concerns are a part of the provisioning process.
To help, a few of these days’s backup tools can instantly realize and inventory virtual servers and then identify whether the statistics associated with each and every of them is being blanketed safely.
moreover, some tools aid IT managers peer interior virtual machines. here is critical as a result of most information recuperation requests are for particular person information, which will also be difficult to locate within a number of digital machines.
Tiered storage vendors consist of EMC, IBM, Overland Storage, Symantec and others. Symantec recently delivered V-Ray, for its NetBackup and Backup Exec products, which lets corporations see into virtual machines to stronger take into account a way to protect them.
within the end, high availability and fault tolerance have turn into basic facets of a sound storage administration approach — no longer separate issues made after the storage infrastructure is in vicinity.
“the important thing in this period of high statistics increase and high demand, is to construct company continuity in from the delivery for simple storage, for backup storage and for archival programs,” says Eric Herzog, vice chairman of product management and advertising for EMC's Unified Storage Division.
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