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250-254 exam Dumps Source : Symantec Cluster Server 6.1 for UNIX Technical Assessment
Test Code : 250-254
Test Name : Symantec Cluster Server 6.1 for UNIX Technical Assessment
Vendor Name : Symantec
Q&A : 298 Real Questions
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Symantec Corp. upgraded its Storage foundation storage administration and file equipment application today, taking advantage of flash to improve efficiency of DAS.
Symantec Storage basis 6.1 contains two new flash-linked features. flexible Storage Sharing (FSS) works interior the Storage basis Cluster File equipment (CFS), using server-based flash to allow sharing of storage throughout nodes with out a SAN or community-connected storage. SmartIO makes use of flash to cache facts on the software level, serving as a study cache from the host. It caches scorching facts on native strong-state drives (SSDs) to enrich performance and reduce latency.
Symantec additionally delivered aid for crimson Hat commercial enterprise Virtualization in Storage foundation to go along with outdated assist of VMware and Microsoft virtualization systems.
CFS is used for prime availability and fast failover for catastrophe recuperation, however unless edition 6.1 it could only be used with shared storage. FSS takes abilities of far off direct reminiscence access aid over InfiniBand, Converged Ethernet and 10 Gigabit Ethernet to movement functions between DAS clusters. Admins can set up clustered volumes to run on varied nodes. information on inside disks can be exported or shared with different nodes in the cluster. If the host goes down, statistics may also be accessed on one other node in the cluster.
"DAS is coming back as a result of SSDs make it possible," noted Arun Balakrishnan, Symantec's manager of tips availability. "We're enabling a shared-nothing infrastructure. Servers can now entry far flung storage as if it had been native storage."
Balakrishnan observed the purpose is to eliminate the bottleneck between the server and storage array that mitigates the performance of flash in shared storage. "You still should join arrays to servers [when using shared storage], and that interconnect is the bottleneck," he talked about. "Latencies are still within the millisecond latitude."
SmartIO controls caching at volume, file device and file stages, optimizing input/output for the application and lower back-conclusion storage. It makes it possible for software, database and server administrators to circulate their reads and writes inside the server.
Flash-caching software items are already common, with most PCI express flash carriers providing them with their cards. Storage vendors EMC Corp. (XtremSF) and NetApp Inc. (Flash Accel) also promote flash-caching utility.
Balakrishnan referred to Symantec's caching works across any flash hardware. "We're now not tied to a selected seller, and we will work together with your current storage," he referred to.
Ashish Nadkarni, analysis director for storage at Framingham, Mass.-based IDC, referred to that by using embracing DAS, Symantec is relocating to offer a standalone stack that may compete with other file programs.
"Symantec is aggressively moving Storage foundation from being an enablement platform to being a standalone stack," he spoke of. "As a standalone stack, which you can basically build a storage solution such as you would build it the usage of crimson Hat Gluster or EMC Isilon. that you would be able to purchase Symantec Storage foundation as a storage platform supplying storage services. Symantec has come to the conclusion that it cannot be the business that allows other americans's storage."
Nadkarni noted the strategy is similar to what Symantec has accomplished in backup, inserting its NetBackup and Backup Exec software applications on integrated home equipment. "or not it's becoming more and more problematic to be successful as a application-only provider," he mentioned.
November 07, 2006 08:00 ET
Veritas Cluster Server for VMware ESX Simplifies Cluster Administration and Automates Failover for VMware digital Servers across Heterogeneous Networks
CUPERTINO, CA -- (MARKET WIRE) -- November 7, 2006 -- Symantec Corp. (NASDAQ: SYMC) these days unveiled Veritas™ Cluster Server (VCS) 5.0 for VMware ESX, bringing high availability and catastrophe healing to heterogeneous statistics centers working digital server application. VCS for VMware ESX automates faraway failover for catastrophe restoration and provides administration of clustered virtual and physical servers. perfect to avoid downtime in case of application, virtual desktop, community hyperlink, or server disasters, VCS for VMware ESX centralizes cluster administration in a single ESX server or across a campus or WAN. VCS is a key part of Veritas Server groundwork, a set of items which permits commercial enterprise customers to discover in aspect what's operating on the servers of their records middle, actively manage and administer these servers, and confirm that mission crucial purposes working on those servers are always obtainable. Symantec might be demonstrating VCS for VMware ESX on the VMworld 2006 convention being held in l. a. this week.
"VMware administrators are looking for equipment that not handiest automate catastrophe recuperation but assist them minimize the vulnerabilities linked to working distinct digital servers on the same actual server," mentioned Poulomi Damany, director of product administration for Symantec's facts core management group. "Veritas Cluster Server for VMware ESX solves these complications by using combining catastrophe healing and excessive availability, and consolidating manage of each virtual and actual servers and their dependencies."
VCS for VMware ESX complements Symantec's clustering options for home windows, Linux and UNIX platforms. Symantec is the market leader in pass-platform server clustering, according to the 2006 edition of the IDC international Clustering and Availability utility report(1). With brought support for VMware ESX, the market's most frequent digital server platform, VCS for VMware ESX offers a single answer to consolidate management of VMware digital servers in heterogeneous facts core environments.
comprehensive excessive Availability and disaster healing
VCS for VMware ESX gives high availability and catastrophe healing for actual and virtual servers. by way of simplifying and automating faraway failover for VMware digital server environments, VCS for VMware ESX gives delivered coverage against digital computing device or software failures, including:-- application and useful resource monitoring, in addition to server monitoring, which offers a much better degree of availability; -- computerized healing from application, community storage, digital useful resource, virtual server, and actual server screw ups; -- Centralized administration of virtual and physical resources and servers from a single console; -- finished checking out for disaster recovery integrating each utility failover and statistics replication to permit agencies to examine disaster recovery without disrupting construction environments. "as it managers try to rein in server sprawl and enrich useful resource utilization across the enterprise, they are faced with the problem of deploying numerous statistics availability and administration solutions to handle and offer protection to an ever-transforming into inhabitants of digital servers," pointed out Brian Babineau, Analyst, business method community. "With VCS for VMware ESX, Symantec has simplified the task for VMware consumers with the aid of presenting a single platform that may steer clear of downtime of mission critical functions operating in virtual and physical server environments throughout any distance and any platform."
New help for VMware ESX
VCS for VMware ESX also allows consumers to maximize the advanced elements of VMware by using recognizing and seamlessly interoperating with VMware's VMotion and disbursed aid Scheduler (DRS). If a virtual laptop is moved from one server to one more for deliberate maintenance using VMotion, the stream may be identified by using VCS and VCS will take the necessary motion to replace the cluster fame consequently. it is additionally appropriate with allotted useful resource Scheduler (DRS), VMware's workload optimization feature.
computerized disaster restoration checking out
entertaining to VCS is fire Drill, a characteristic of VCS that gives an added layer of protection for virtual servers. With fire Drill, corporations can check their catastrophe restoration plan and configuration without impacting the construction ambiance. In virtual environments where server locations trade often, fireplace Drill helps monitor and music cellular servers, their configuration and dependency links.
expense and Availability
Veritas Cluster Server for VMware ESX is scheduled to be launched within the first quarter of 2007. Pricing for VCS for VMware ESX starts at $1,995 per server.
Symantec is the world chief in proposing solutions to aid individuals and corporations assure the security, availability, and integrity of their information. Headquartered in Cupertino, Calif., Symantec has operations in forty international locations. more information is accessible at www.symantec.com.
(1) IDC, global Clustering and Availability utility 2005 vendor Shares, Doc #203676, October, 2006
word TO EDITORS: if you want additional info on Symantec supplier and its items, please discuss with the Symantec information Room at http://www.symantec.com/news. All costs referred to are in U.S. greenbacks and are legitimate only within the u.s..
Symantec and the Symantec logo are emblems or registered trademarks of Symantec company or its affiliates within the U.S. and different international locations. other names can be emblems of their respective homeowners.
Symantec Corp. presents Veritas Cluster Server 5.0 for VMware ESX, an commercial enterprise-category excessive availability and catastrophe healing answer for enterprise-vital digital environments.
Cluster Server for VMware ESX provides superior monitoring capabilities for purposes running internal virtual machines and automates failover throughout native and faraway websites within the experience of disasters to provide a more robust level of utility availability than present guide restoration methods.
most desirable for bettering server useful resource utilisation throughout data centres, Cluster Server for VMware helps stay away from downtime linked to utility, digital laptop, community hyperlink, or server disasters.
additionally, Cluster Server for VMware helps ensure availability in a single data centre, in addition to distinctive facts centres throughout a campus, metropolitan or huge area community (WAN).
Cluster Server is a key element of Veritas Server groundwork, a finished server and utility management answer for facts centre automation (DCA), which helps IT organisations meet service degree expectations and handle operating fees in complicated and altering environments.
Cluster Server for VMware is complementary to Symantec's clustering solutions for windows, Linux, and UNIX systems.
based on enterprise method community, clients require disaster restoration solutions that can expedite enterprise continuity operations. Veritas Cluster Server for VMware ESX makes it possible for organisations to proactively make certain the high availability of mission-important applications working in virtual environments.
business approach neighborhood viewa that Cluster Server for VMware ESX can help minimise application downtime for IT organizations striving to fulfill stringent inside service level agreements, to simply moments per year.
enterprise-type high availability and disaster recuperation for physical and virtual environments
Cluster Server for VMware ESX gives high availability and catastrophe healing for both physical and virtual servers. through simplifying and automating far off failover for VMware virtual server environments, Cluster Server for VMware ESX offers delivered coverage towards virtual computing device or utility failures, including:
Server, application and aid monitoring, which gives an improved stage of availability;computerized recuperation from utility, network storage, digital aid, virtual server, and actual server disasters;Centralised administration of virtual and actual clustered servers from a single console;finished insurance plan from extensive enviornment failures with the aid of integrating catastrophe recovery plan verification tools, remote application failover points and true-time data replication to permit organizations to test disaster restoration with out disrupting creation environments.
according to Symantec's facts core management neighborhood, valued clientele who're constructing out digital server farms seem to Symantec for a similar catastrophe healing capabilities they've relied on to maximise availability in typical server environments.
The facts middle administration group provides that Veritas Cluster Server for VMware ESX would assist firms cut back the complexity of managing server and utility actual estate to make certain availability of enterprise-essential functions.
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Microsoft is pointing customers running Windows Server in combination with older releases of Symantec Endpoint Protection and Symantec Antivirus to solution made available by the security outfit. Robert Paige, senior program manager Windows Partner Application Ecosystem Team, recommended that all the upgrades be applied as soon as possible in the context in which Symantec security products on top of Windows Server generate network connectivity problems.
“When a Windows Server is running older versions of Symantec Endpoint Protection 11 or Symantec Antivirus 10.2, they may experience performance issues for network shares, or intermittent loss of connectivity to SMB shares. We’re hoping we can help you avoid a costly and time consuming support incident by making this issue more visible to help you plan your deployments,” Paige stated.
One of the most common issues reported by end users is related to the “Network Path Not Found” error message. However, according to Microsoft, there are additional bugs dealt with in the solution provided for older versions of Symantec Endpoint Protection 11 and Symantec Antivirus 10.2.
“Symantec confirms that this is a known issue and there are updates to resolve the problem. For more information, please see the Symantec Knowledge Base article about this issue. For information about Symantec support for Endpoint Protection 11, visit the Symantec Support site,” Paige noted.
Customers that for various reasons are unable to upgrade, or if they are stuck using the security products affected by networking issues should contact Symantec technical support. The security company will labor in order to help customers deploy workarounds instead of the resolves provided.
Paige enumerated the error messages encountered by customers and dealt with by the solution provided by Symantec:
“• Error message: “The network path was not found” or “The specified network name is no longer available” when attempting to open shares, map a drive, run DCDIAG to the to the affected server, use netdom to reset secure channel
• Error message: “RPC Server is unavailable” when trying to connect via Active Directory Users and Computers
• Error message: “RPC Server is too busy to process the request” when attempting to join the Windows server domain
• Error message: “No network provider accepted the given network path” or “File or network path no longer exists” when copying a file over the network to affected servers
• Printing issues (cannot update printer IP address via DNS)
• AD replication failures
• Cluster service fails to start, or inability to access existing File Share resources even if they are online according to the Cluster Administrator snap-in
• Event log Event ID 4226 and or 2022 may occur frequently (up to every 20 to 30 seconds).”
Veritas Software recommends users of its Cluster Server apply newly-available patches to plug a "serious" security hole an attacker could use to launch malicious code with root privileges.
"The potential for a serious system security breach has been found to exist in Veritas Cluster Server for Solaris, HP-UX, AIX, and Linux," the Mountain View, Calif.-based company said in an advisory. "This issue does not exist on any version [of the server] for Windows."
The company said the patches address the problem for Solaris, HP-UX, AIX, and Linux versions and that if users of Cluster Server 4.0 on Solaris have already applied MP1, the issue is already resolved.
"It is highly recommended that all installations of Cluster Server be updated to include the fix for this potential security issue because root access can be achieved by unauthorized users," Veritas said.
Veritas said users should take the following steps to apply the patch:
Futher technical details are offered in the advisory.
Copenhagen, Denmark-based security firm Secunia said the vulnerability is "highly critical." Asked how much of a crossover impact the vulnerability could have, Secunia CTO Thomas Kristensen said by e-mail, "Our rating is solely based on an assessment of a single installation, not how widely used the product is. Unfortunately, Veritas hasn't published a lot of details."
Because of the potential for a security breach, Veritas said it is keeping most of those details under lock and key.
Kristensen said he's not aware of any workarounds to the problem. "I would recommend installing the patch rather than attempting to apply a workaround," he said.
Every operating system has technical issues and Linux has not been faultless. But some key technological milestones have been passed in recent years that have made it possible for Linux to quietly assert dominance in the fight for popularity and custom.
Apart from the fact that it is free and has been since its creation in 1991 by Linus Torvalds, Linux has many technological advantages that mean other operating systems just can't beat it.
Millions of people all over the world use Microsoft operating systems but how many describe themselves as enthusiasts? Linux users are often really passionate about the open source cause and this is boosting uptake. They argue that it is more secure than main rivals Apple and Microsoft, with technical features that win hands down. The fact that the most powerful and expensive computers in the world are using it is potentially the best reference you could want.
It's easy to see why Linux appeals to the people who operate supercomputers. Linux can support multiple processors and large clusters of computers, unlike IBM, VMware and Microsoft who prefer to charge per processor on many of their products. As long as you are capable of writing the software to solve the problem, Linux will allow you to create your own complex supercomputer or cluster system for free. As organisations who host these types of systems have the financial power to pay for the personnel, the supercomputers themselves become very powerful, efficient systems used to solve many computational problems.
But the fact is, even if you think you are bound to Windows or some other proprietary operating system, you are probably already a Linux user too. When you visit a website, the chances are that it is using an Apache2 webserver. This is free and designed to integrate with the security and operating system features of Linux. Currently more than 60% of webservers are known to be hosting via Apache.
Android, developed by Google, is based on a Linux kernel and is now the most dominant smartphone and tablet computer platform. Android is more vulnerable to malware than Apple's OS but you are safe as long as you act sensibly.
Of course, it remains to be seen whether Android can hold on to its 80% market share in the face of stiff competition. Amazon and Microsoft are getting in on the territory, which could be a threat. But at least Ubuntu, another big rival, is also very much grounded in the open source movement. Used on many desktop systems around the world, this free and easy to use version of Linux has extended the life of many computers after Windows had folded under pressure.
And at home, embedded devices, like your broadband wireless router and cable television set top box are often using specifically designed versions of Linux. Linux is highly likely to be an integral part of your household – it just doesn't shout about it like Apple.
While I am an enthusiastic Linux user, I also have Microsoft at work and use Apple products too. The fact that Linux is based on the same Unix system from which the Max OSX system is derived means that it should be seen more as a cousin than a radical alternative to Apple offerings. And if the two are comparable, are you more likely to choose one that comes with a shiny laptop or one that is more functional but less chic? Some would continue to opt for the design features of a Mac.
And even though Microsoft's star often seems to be fading, its dominance of the market in the 1990s and early 2000s means that it is still a tough one to beat. Windows 8 has had many detractors but Microsoft is adept at learning from its mistakes and tends to rally with a better version the next time.
All that said, Linux is free and much more pervasive than the average computer user might think. You can easily install Linux on any home computer, many tablets and even your own private supercomputer, so you should think about switching. And if you think you never could, think about how much of your online life already depends on this quiet contender.
Explore further: Open source gives new life to old Windows XP machines
This story is published courtesy of The Conversation (under Creative Commons-Attribution/No derivatives).
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DRI [1 Certification Exam(s) ]
ECCouncil [21 Certification Exam(s) ]
ECDL [1 Certification Exam(s) ]
EMC [129 Certification Exam(s) ]
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FSMTB [1 Certification Exam(s) ]
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GAQM [9 Certification Exam(s) ]
Genesys [4 Certification Exam(s) ]
GIAC [15 Certification Exam(s) ]
Google [4 Certification Exam(s) ]
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H3C [1 Certification Exam(s) ]
HDI [9 Certification Exam(s) ]
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HR [4 Certification Exam(s) ]
HRCI [1 Certification Exam(s) ]
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IAAP [1 Certification Exam(s) ]
IAHCSMM [1 Certification Exam(s) ]
IBM [1532 Certification Exam(s) ]
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ICAI [1 Certification Exam(s) ]
ICDL [6 Certification Exam(s) ]
IEEE [1 Certification Exam(s) ]
IELTS [1 Certification Exam(s) ]
IFPUG [1 Certification Exam(s) ]
IIA [3 Certification Exam(s) ]
IIBA [2 Certification Exam(s) ]
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Intel [2 Certification Exam(s) ]
IQN [1 Certification Exam(s) ]
IRS [1 Certification Exam(s) ]
ISA [1 Certification Exam(s) ]
ISACA [4 Certification Exam(s) ]
ISC2 [6 Certification Exam(s) ]
ISEB [24 Certification Exam(s) ]
Isilon [4 Certification Exam(s) ]
ISM [6 Certification Exam(s) ]
iSQI [7 Certification Exam(s) ]
ITEC [1 Certification Exam(s) ]
Juniper [64 Certification Exam(s) ]
LEED [1 Certification Exam(s) ]
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Liferay [1 Certification Exam(s) ]
Logical-Operations [1 Certification Exam(s) ]
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LPI [24 Certification Exam(s) ]
LSI [3 Certification Exam(s) ]
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McData [3 Certification Exam(s) ]
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mySQL [4 Certification Exam(s) ]
NBSTSA [1 Certification Exam(s) ]
NCEES [2 Certification Exam(s) ]
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NCLEX [2 Certification Exam(s) ]
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OMG [10 Certification Exam(s) ]
Oracle [279 Certification Exam(s) ]
P&C [2 Certification Exam(s) ]
Palo-Alto [4 Certification Exam(s) ]
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PayPal [1 Certification Exam(s) ]
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PEOPLECERT [4 Certification Exam(s) ]
PMI [15 Certification Exam(s) ]
Polycom [2 Certification Exam(s) ]
PostgreSQL-CE [1 Certification Exam(s) ]
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PTCB [2 Certification Exam(s) ]
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Salesforce [5 Certification Exam(s) ]
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SASInstitute [15 Certification Exam(s) ]
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SCO [10 Certification Exam(s) ]
SCP [6 Certification Exam(s) ]
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Siemens [1 Certification Exam(s) ]
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USMLE [1 Certification Exam(s) ]
VCE [6 Certification Exam(s) ]
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Vmware [58 Certification Exam(s) ]
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