Introduction to Cloud Computing - Sagari
Cloud computing is based on the increase in Internet related services, use and delivery models, usually involving the Internet to provide dynamic and easy scalable and often virtualized resources. Cloud network, a metaphor of the Internet. In the figure is often cloud said telecommunications network, and later used to represent the Internet and the underlying infrastructure abstraction. Narrow cloud computing refers to the delivery of IT infrastructure and usage patterns, to obtain the necessary resources through the network to demand, and scalable way; generalized cloud computing refers to the delivery of services and usage patterns through the network on-demand, easy to expand The way to get the required services. This service can be the IT and software, Internet-related, but other services. It means that computing power as a commodity through the Internet circulation.
Introduction to Cloud Computing In This Document: There has been a huge shift in how we all view computing in recent years, with the Background future laying firmly in the power of “Cloud Computing.” It is by no means a new concept, but with modern innovations, and by utilising the latest technologies, the What is the Cloud benefits are now available for everyone to share. “The Cloud can be described as a metaphor We will help you to unders tand exactly what cloud computing comprises of, how these for the Internet” benefits can not only transform your business function, but also drive down your costs. What is SaaS (Software This new, web-based generation of computing utilises remote servers housed in as a Service)? highly secure data centres for data storage and management, so organisations no What types of platforms longer need to purchase and look after their IT solutions in-house. does the Cloud use? Public Cloud Background What is the Cloud For several years we have all experienced a huge “The cloud embodies various services and Private Cloud shift in business which, in part due to the global technologies, which combine to enable the economic downturn, has hit all businesses, from delivery of computing services over the Internet Hybrid Cloud the one man band, to the largest corporations in real-time, allowing end-users instant access very hard; resulting in these organisations having to data and applications, from any device with Internet access.” What services can be to closely scrutinise their costs in order to stay competitive. It will therefore come as no surprise used in the cloud? then that one of their biggest recurring costs is IT. As already discussed the Cloud is not a new concept, but one that we are all actually very Hosted/Streamed These organisations have had a very positive familiar with. Since the commercial birth of Desktops outcome on the industry, helping pave the way the Internet, almost everybody has at one time for the logical shift to the cloud, by pressuring or another used the combined resources from Hosted Email the major software suppliers, and allowing them Cloud servers, whether comparing car insurance to become ‘empowered’ – enabling them to move quotes, or using Web Mail like Gmail or Hotmail; the data and processing function(s) are carried Voice Over IP their data and processing power from old server rooms, into purpose built secure locations which out seamlessly to the user, regardless of their geographical location, through groups of Cloud Storage deliver the latest technologies, guaranteeing their data security, and extracting greater interconnected computers and data resources. computing power when its really needed; all at a Dynamic Servers fraction of historic costs. “The Cloud can be described Why switch from The commercial cloud architecture was born, as a metaphor for the traditional IT to the meaning the start of the end to the traditional IT break fix & upgrade model that we are all used to. Internet” cloud? As far as we are concerned there are two This has given way to providers who have Remote Access/ Access distinct categories associated with this Cloud the ability to run new feature/function rich delivery: SaaS (Software as a Service) and from anywhere environments super effectively , minimising the Hosted Services (streamed). These need to be threat of viruses, with no more physical patching understood individually, however, just to confuse Disaster recovery / of insecure products, enabling very little if matters from the offset, these two functions are backup any downtime to business critical applications often combined, utilising individual parts of one and data – how about the ability to run your another’s processing, either to deliver a single Should I be concerned applications wherever you maybe in the world? application, or an entire suite of products. about security? Although this in essence sounds very simplistic, To grasp this concept is to really start it is a far reaching and broad industry, employing understanding the very essence of Cloud, In Conclusion many different technologies and architectures, which is ‘to share,’ - using the combined it is vital that you make an informed decision computing resources of the most powerful About Sagari on any planned IT provider, as the market (like computer platforms on the Internet, delivering any other) has varying standards and quality of an individual application or an entire suite – service associated with it. the bottom line is that business applications and their transactions run across platforms We hope this document will help you to make vastly more powerful than we would otherwise informed choices, and give you the knowledge to be able to employ or afford in traditional IT ask the right questions. environments. For a free consultation call 0844 357 7282 What is SaaS (Software were still located down the corridor – you can also be safe in the knowledge that ‘Cash Cow’ logic that IT has historically had, the days are numbered where we as a Service)? the support staff utilised by Sagari and had to except these large costs, removing other premium vendors are some of the the underlying feeling of being held to One of the biggest buzz words in IT over most knowledgeable and skilled available ransom by our suppliers speaking “techno recent years has been Cloud. This does anywhere in the world. gabble” at you. The Cloud really has not mean this is a short lived, or in anyway brought a new level of honesty, highlighting a fad - in-fact the polar opposite is true There are many SaaS application available, ethical providers who are able to put the – but as businesses strive to save money with the number growing on a near daily customer’s wants and needs first. Where and cut costs, one of the biggest return basis - to name just a few of the common customers don’t have to think or worry on investments comes from removing applications: about the support, which is all taken care of their emphasis on local support for their in the background. business critical applications. • Email (web-based/hosted) (Zimbra/ Hosted Exchange) Another positive for customers deploying Organisations like Sagari specialise in all • CRM (Sugar etc.) SaaS services can be that they are only the management and support for them. paying for what they actually use, like Not only does this remove the carbon/ • HyperOffice suite a ‘pay-as-you-go’ service – very often cost expensive power-cooling from server • Zoho resources are only required in normal rooms, it minimises the support costs working hours for example, this could • Google Docs. for management of a given service. Often mean services can be switched off when physical servers are purchased at great • VoIP (telephony) not being used - different suppliers work on different charging metrics, some working on average usage, others may bill for data rates (amounts of transacted data), others for access times or helpdesk availability. NB It is vital that you fully understand and read the small print for any Cloud provider SLA’s and charging metrics, some have large costs for excess data rates, with small unrealistic amounts to start with. What types of platforms does the Cloud use? As already discussed, there are many different suppliers running their Cloud services on various platforms and infrastructures. Like so many descriptions & analogies we have to make when discussing this topic, many of these infrastructures are also shared are used in part (just to cause the further confusion). Please don’t be put off by this, in reality this is actually to your benefit - which we will explain. The main types of Cloud platforms are: expense and spend the majority of their lives Such is the market push for hosted under, or over utilised, with reactive rather applications that nearly all of the existing Public Cloud than proactive management and support, software providers are offering their latest release(s) as hosted (SaaS) versions The Public Cloud (or external Cloud) is most often only when things go wrong. the most common variant described by now – these can either be hosted by your Cloud IT provider, or are hosted by the press. The resources are dynamically Once migrated to a SaaS platform, the manufacturers themselves such as provisioned, and the architecture is leased customers are able to securely access SugarCRM. from the owners and managed via 3rd party individual applications over the internet Cloud suppliers. The owners provide full using a variety of connection types. Gone are the days of the antiquated and server environments or bespoke software. Email is a prime and business critical expensive updates, where fortunes are charged for license/version upgrades, Using the Public Cloud(s), cloud providers example; deploying SaaS to manage one nearly always resulting in a server upgrade are able to setup and manage scalable of the most crucial business functions, being necessary, where potentially weeks of environments for their clients. The allows staff to be migrated seamlessly, requiring an expert consultant(s) on-site to suppliers are completely responsible for with no business downtime, enabling correctly setup the software up… “Sounds the management, including security and subsequent access to staff over the internet. familiar” ? routing. Bills are produced like a utility bill, Providing the very latest Outlook 2010 for which varies dependent on several factors example - these browser based, or hosted The Cloud has introduced some real e.g. how much data is moved, number of systems are accessed securely, offering positives, with the demise of this over priced transactions and CPU/RAM utilised, and the same look feel & speed as if the same For a free consultation call 0844 357 7282 normally billed to customers monthly. Similar to an electricity bill In conclusion Public Cloud providers are only responsible for the hardware that you Hybrid Cloud or your Cloud supplier are using, they will Hybrid cloud environment combine the The CPU, RAM & Disk space are all the not always support the software that resides resources from both the Public & Private responsibility of the supplier, along with on it and to successfully deliver a fully Cloud, this is the most popular choice for patching security and anti-virus. Public streamed environment takes a great deal large enterprises. Clouds allow organisations to manage of planning and skill to support. They do anything from a single web server; to the offer a fantastic forum to build environments For example, a company could choose to use delivery of a full Enterprise domain setup quickly or deliver single applications, a public cloud service for general computing, (this describes a full corporate setup), built with state of the art internet speeds and but store its business-critical data within using separated application servers, security general user response times. They also its own data centre. This may be because servers and domain controllers necessary to provide very attractive environment for larger organisations are likely to have deliver a fully streamed desktop (just like we backup data which is utilised by allot of already invested heavily in the infrastructure are familiar with in corporate environments). suppliers to ensure no loss of data and often required to provide resources in-house. used to backup data from Private Cloud A Public Cloud has a great deal of advantages: environments. Private cloud (also referred to as ‘corporate’ servers are assigned for specific tasks and or ‘internal’ cloud) is a term used to denote can be built very quickly; you are only billed Public Cloud Providers: a proprietary computing architecture, for what you use. They enable an extremely providing hosted services on private • Amazon (AWS) EC2 networks. This type of cloud computing is fast architecture, with quick turn-around and setup times - often using pre-defined images • Google generally used by large companies, and for server(s), in most circumstances they allows their corporate network and data • Microsoft are already available and don’t need building centre administrators to effectively become from scratch e.g. SBS2008 or SQL Enterprise, • RackSpace in-house ‘service providers’ catering to IIS etc. When servers are setup, part of their • Flexiscale ‘customers’ within the corporation. However, charging metric includes licensing. it negates many of the benefits of cloud computing, as organisations still need to NB Licensing is itself is a huge and complex Private Cloud purchase and set up and manage their own subject, and makes charging transparent The Private Cloud is a term which requires clouds. and is including in the monthly bill - some clarification. In essence this came to minimising the confusion in pricing from being from large companies who owned and Sagari work using a multi-tenanted Microsoft etc. setup there own proprietary environments, architecture utilising Sagari’s own Microsoft hosting only their own internal services and VM environments housed in the very The downside is they are not the easiest which are administered by their own staff, best data centres in the world to manage or administer, especially when effectively becoming in-house service running more than a single (SaaS) server/ instance, or application. providers, only delivering services to their What services can be own corporate customers. used in the cloud? They always require monitoring, a very clear This obviously required vast investment to understanding of the proprietary routing and Nearly all IT services can be delivered setup the hardware with large investments through the Cloud, obviously taking security provided by the Cloud owner. required on their internet links/connections advantage of the distributed cloud model. to service the global connection speeds Some of the solutions include but are not Your Cloud supplier is responsible for required for different geographical locations. limited to: all security/backups, which is especially complex when running and managing a fully When trying to understand what the Cloud streamed/hosted desktop environment with truly delivers; these organisations quickly Hosted/Streamed multiple servers. realised that their Return on Investment would take many years to claim back from Desktops This takes huge amounts of planning, and a the traditional support architecture which Hosted desktops remove the need for methodical delivery to get everything right they moved from, this has changed as the traditional desktop PCs and associated from the start; from the development stage market recently embraced the true benefits support in the office environment; this thorough testing, including back-ups etc. must of the Cloud, meaning there is now a cross massively reduces the cost of providing be fully verified by your supplier to guarantee section of these vast data centres that with the services that any business requires. no downtime or loss of data in the future. internal investment started to gain too much A hosted/streamed desktop looks and It is very important that you fully understand capacity for their own needs, meaning these behaves just like a regular desktop PC, but your chosen Cloud providers backup corporate owners were able to sub-lease the software, including bespoke customers and redundant policies if building your their infrastructure for other organisations applications are delivered via managed environment on a Public Cloud. Other to use. The corporate investment model was environments, these are highly secure data potential negatives are the increase in always financially driven by the operational centres, which rather than setup on their charges where you have redundant servers, IT costs. As soon as the market realised own machines and servers in a Comms these will always charging in the background that they would not require support staff to room, are run through data centres. and require a clear and knowledgeable visit staff’s machines in a break fix scenario, and that much cheaper thin-clients could be N.B Please ensure your potential IT provider approach, purchased the saving were instant and very is capable of virtulising all your applications Public Cloud providers also charge for any significant. The results of delivering a fully hosted data being moved across their environment, desktop via the internet means you can which can also add up. For a free consultation call 0844 357 7282 work from anywhere in the world, your It also makes the recovery of data much quickly and managed, maintained, patched business will never feel the effects of the easier with clearly driven software etc. and upgraded remotely by your service snow/bad weather again, as access will be provider. Technical support is provided available from anywhere, using any existing N.B You must ensure your provider enables round the clock by reputable providers like PC or laptop (or ultimately by Thin-Client). encryption on all data storage Sagari for no extra cost, reducing the burden All subsequent management is centrally on IT staff, this frees up staff to focus on looked after by your IT provider, including Dynamic Servers business-critical aspects of the business patch management, Anti-Virus, backups that aren’t IT related and Disaster Recovery. The PC’s become Dynamic servers have just started to realise far more efficient when used in this manner, their true place in the market place. The Cloud IT not only vastly improves flexibility, with the option of using much cheaper thin- conventional model of a dedicated server is it increase efficiencies at all levels but clients to reduce future expenditure. fast becoming redundant. Service providers saves vast amounts of money, and helps you like Sagari gives its customers access to organisation go green by markedly cutting their resources that look and feel exactly Hosted Email like the dedicated server in their old Comms down carbon emissions. It prevents the need for large future investment and means As more business look for a secure and room, but that are fully scalable. Customers that the small business is on a level playing reliable email solution (that doesn’t cost directly control the amount of processing with large business – the disparity between the earth!), they are increasingly looking at power and space that they use, this means resources is brought in line, this means all hosted email platforms. Utilising the world’s they only pay for what they use. They don’t costs can be clearly planned for and paid leading email platform, Sagari offers all our pay for hardware they don’t need. Typically, for regularly without investment that your clients the very latest Microsoft Exchange customers can make changes to their business may or may not realise in the long- environment - this enables our clients dynamic server at any time, without the term. from the large to the small to experience historic costs associated with moving from the same benefits, offering the very latest one server to another. Some of the hardware and software run hosted Exchange. by Sagari would costs 100’s of thousands N.B You must also ensure your IT provider to afford individually, and really gives all No more expensive investment and costly has the ability to Virtulise your services business the chance to compete on level infrastructure upgrades. Your business in the first instance – Sagari can virtulise ground. critical Email is stored centrally on managed almost any application no matter how old or servers, enabling your organisation the dependent, this provides customers seeking Reputable suppliers will offer levels of security and redundancy you thought this service the ability to guarantee and support normal companies could not previously impossible. Choosing the right ensure business critical legacy programmes compete with, enabling 24/7 phone support, supplier will guarantee you the fastest are run on the latest dynamic servers giving free training, with nearly 100t% uptime of connectivity from any location. This allows amazing reassurance. data centres. staff to access their email, calendar, contacts and shared files by a variety of means; all Why switch from N.B Always ask a prospective provider about reliability and guaranteed service levels – by the latest Outlook client. Your IT provider should also manage and support Mobile traditional IT to the cloud? ensure your applications and/or services are Device access, including Blackberry etc. always online and accessible. The list of positives to all business switching over to a hosted architecture Voice Over IP is nearly unquantifiable. The ‘proof really Remote Access/ Access VoIP (Voice Over IP) is a means of carrying is in the pudding ’ as some of the worlds leading organisations realise the large from anywhere phone calls across your digital network and cost savings and benefits that choosing the Cloud-based IT services let you access your the internet, consider VoIP to be no different correct hosted IT supplier brings to their applications and data securely from any to a traditional phone system with the same organisation. location via an internet connection. It’s easier if not more functionality, handsets work to collaborate too; with both the application exactly the same as a normal digital phone Not only providing large savings, but and the data stored in the cloud, multiple attached to a PBX - but it has distinct cost increasing their ROI on the associated users can work together on the same project, advantages! A hosted VoIP system replaces to do with IT that they may not have truly share calendars and contacts etc. the expensive on-site phone systems, there considered – Training for example is now is no charge for installation and handsets A normal misconception is that if your delivered across the network via online and phone numbers are much cheaper, it’s internet connection is to fail, you will not Webinars, new staff don’t wait for weeks simple, cost-efficient and paid monthly. be able to access your critical data or on end for a training course that’s now delivered online, viruses and server application. The truth is access is far easier In most cases handset and totally plug and downtime is a thing of the past. New than if it were in your office for example, play with minimal configuration. software doesn’t need to be installed or you can easily access from another means upgraded on each machine etc……. such as your mobile device or wireless Cloud Storage network, giving you more redundancy than Cloud storage is growing in popularity, Cloud computing offers a simple operational you imagined. Flexibility including remote offering many benefits and cost advantages. expense that is easier to plan for. This stops working is easily enabled, in truth this Whilst saving expenditure it removes the money being wasted on depreciating assets happens by default, this means you will necessary support and maintenance, that are always under or over utilised in your stay operational though bad weather and working out much more cost effective Comms room and costs a fortune to keep generally keep staff happy and working. than the required in-house maintenance, cool irrelevant of how it’s being used. management and support required. IT solutions can be deployed extremely For a free consultation call 0844 357 7282 Disaster recovery / and tested by experienced professionals” About Sagari 5. Recovery—find out what will happen to backup data in the case of a disaster; do they offer We have been in operation for over 4 years Recent research has indicated that a vast complete restoration and, if so, how long majority of businesses does not have an that would take and were one of the first IT companies in the adequate disaster recovery or business 6. Investigative Support—inquire whether continuity plan should a disaster occur; UK to offer fully hosted/streamed desktops a vendor has the ability to investigate any research show that in most cases this would inappropriate or illegal activity anywhere. bring the business to a halt. 7. Long-term viability—ask what will happen Sagari prides itself on covering all the facets to data if the company goes out of business; Sagari prides itself on exemplary customer of DR and Backup as its core delivery, all how will data be returned and in what format data is continually backed-up, allowing all In general security is usually improved by services, and offers our customers our customers to retrieve important files keeping data in one centralised location. In from their desktop or office environment high security data centres like those that everything from streamed desktops, to at the press of a button. On request we can Sagari use, security is typically better than even supply our customers with a ready-to- hosted Email, VoIP, mobile device integration traditional setups. go desktop to plug in should their business including Blackberry, whist utilising the very be hit by an unforeseen problem. In Conclusion Cloud infrastructure should allow any best Virtualisation tools to migrate existing Sagari’s Hosted/Streamed Desktops primarily use VDI for its backend services, this means enterprise, of any size to achieve the most software platforms. Our main data centre you don’t have to worry about data backup efficient use of their existing IT hardware or disaster recovery ever again, and is taken and software investments. has been voted the fastest in the UK and care of as part of the service. Files are stored twice at different remote locations to ensure Sagari works closely with many channel 2nd fastest in the world adhering to all the that there’s always a copy available 24 hours partners to provide an end-to-end solution to any size business from the small to the latest ISO standards with staff managing the a day, 7 days per week. largest corporate businesses, if a company wishes to evaluate, plan migrations and Infrastructure with Microsoft Gold Partner Should I be concerned move towards cloud computing, this status and a plethora of other related about security? can be done quickly and simply – Sagari project manage everything from the single qualifications (available on request). Security is a big concern for everybody virtualised application, to the delivery of considering the move of their data and entire streamed desktop suite, always services to the Cloud. The correct answer communicating clear customer defined We host and manage IT services for from any reputable provider should always timelines and goals and objectives. be the same “your applications and data any business, from small charities and a safer with us, than it would be at your As and when your business grows, your IT own customer premise.” Sagari utilise and needs grow with them, Sagari act and as a education, to manufacturing and government adhere to the very strictest policies, and host cost effective extension to this growth and bodies; including the Department of Work in some of the most secure buildings in the your aspirations. The scalability and speed country, fear of theft is nearly impossible, of the deployment offered by Sagar i and our and Pensions and NHS (N3 T1 connectivity). Fire - non existent, by using the correct Cloud infrastructure means you can expand collocation encryption and backups means a your IT provision instantly easily meeting the Every business is viewed by Sagari as copy of your data can always be retrieved. increased requirements and demands – this works the other way, also meaning should you individual, and unique, with differing needs N.B Not all vendors offer the same level of wish to scale down this can easily take place. security, which means you must research and requirements - we always deliver with their policies. Security is typically greatly enhanced, along with resilience, and the flexibility, and the same exacting standards of care. Gartner lists the following seven security overall responsiveness. Waste of money questions: through time management is minimised, No customer is considered too large or too allowing you to effectively do more with a 1. Privileged user access—enquire about great deal less. small, and any help we can provide at any who has access to data and about the hiring and management of such administrators Moving to a cloud environment gives your level is welcome 2. Regulatory compliance—makes sure a organisation the ability to use the most vendor is willing to undergo external audits advanced technologies at a fraction of the cost, purchasing and running cutting edge For more information don’t hesitate to and/or security certifications systems perceivably in-house, that you may 3. Data location—ask if a provider allows for contact our customer services dept on never dream of affording before. any control over the location of data firstname.lastname@example.org, or 0844 537 7282 and 4. Data segregation—make sure that N.B Ensure that your provider can deliver encryption is available at all stages and that your requirements and attains a quality of please look at the website http://www. these “encryption schemes were designed service you deserve. sagari.co.uk For a free consultation call 0844 357 7282