|By Srinivasan Sundara Rajan||
|October 28, 2010 10:47 AM EDT||
Abstraction Vs Flexbility :
It is evident that storage plays a major part in the data center and for cloud services. The storage virtualization plays a key part in the dynamic infrastructure attribute of Cloud Computing. Which means the storage is provisioned and de-allocated on demand and usage needs. The good part is that this complex stuff is hidden from the cloud consumer.
However while the storage allocation is abstracted it also brings in performance concerns in a multi tenant cloud environment where by most of the cloud consumers are geographically dispersed and a good amount of data retrieval and manipulation at stake.
Currently most cloud storage virtualization platforms rely on the hardware options like fiber channel, Ethernet switch, network attached storage (NAS) and iSCSI as the implementation medium.
Currently Cloud platforms have very little support for database design related virtualization enhancements. But in future designing databases specific for Cloud especially for private clouds in large enterprises is a sure possibility. In this context the following design principles are important when you design database applications which needs to be delivered using Cloud platform.
Shared Nothing Vs Shared Every Thing
Shared resource and shared nothing represent forms of data access architectures. In a shared (every thing) resource model various processes in the DBMS have access to all system resources, including the data. In the shared-nothing environment, separate DBMS resources divide up the workload, rach responsible for its own data, memory locations, and other resources.
Most popular databases support a shared-nothing model using different strategies. For example,
- Oracle : Utilizes Range & Hash portioning of tables towards shared nothing . Here it is a table and table space level segregation of data based either on range of key values or a hashing algorithm. (note : Oracle Real Application clusters at the instance level adopt a Shared Every Thing Model)
- DB2 UDB follows a shared nothing model. Data is partitioned according to a partition key. Rows are assigned to a partition, and each partition has total control of that row. If another partition wants to read or update a row, it must send the request to the owning partition. The owning partition then executes the command on behalf of the requestor.
- Sql Server : Utilizes Distributed Partitioned views to implement Shared nothing architecture.
Shared nothing model greatly simplifies things like resource contention, including memory, locks and processors . Implemented properly , it offers unlimited scalability. As new rows or data sources are added, more partitions can be added. The workload on any individual partition remains the same.
Storage Virtualization & Shared Nothing Meet Each Other
While the dynamic infrastructure tenant of cloud computing is satisfied by the current classic model as seen in the picture , but the load balancing and scalability needs are fully satisfied by hardware at this time. However implementing the shared nothing data access architecture with a proper access key will highly improve the scalability and performance of cloud databases which in turn increases the QoS of the Cloud platform and make the XaaS a real success providing the best of cost efficiency and improved performance.
View Of a Shared Nothing Cloud Database
As evident implementing a Shared Nothing Cloud Database Model does not replace Storage Virtualization, but compliments the scalability further by splitting the data within multiple virtual storage drives. As seen in the diagram,
Load balancing algorithms implemented at the shared nothing cloud databases further augment the Load balancing options provided by the Cloud Platform.
Shared Nothing Cloud Database Design Considerations
- Implement Hashing or Ranging Keys as part of the tables which logically separate the data based on the Cloud platform needs. For example if in a SaaS platform multi tenancy is the need then having the CUSTOMER ID or CUSTOMER KEY as a Hashing key for the shared nothing cloud databases
- Increase the scalability further by implementing a Geography or Time based partition which scales up well depending on the situations
- Ensure that the queries utilize the logical partitions established as part of the shared nothing architecture. For example if you can query a customer by SSN in a cloud database which has implemented a shared nothing architecture using Geography, then utilize the geography also part of the query filter conditions
- Have an option to rebalance the data within the virtualized storage if they started becoming skewed due to the way the hashing algorithm is built in
What is expected from Cloud Platform Providers & Database Vendors
- Expecting the database vendors provide shared nothing algorithms tailored for virtual storage, especially on the rebalancing based on the disk usage
- New cloud aware partitioning techniques
- Complimenting load balancing algorithm to augment what is currently available at the hardware
- Ability to PIN SQLs to a virtual machine based on dynamically queried resource usage
Over all Private Clouds at Enterprise need to satisfy still more SLA or QoS as part of their service and full support from database engines is key to the success. Share Nothing Architecture is one important thing to achieve these non functional needs of the Cloud Platform.
Developing software for the Internet of Things (IoT) comes with its own set of challenges. Security, privacy, and unified standards are a few key issues. In addition, each IoT product is comprised of (at least) three separate application components: the software embedded in the device, the back-end service, and the mobile application for the end user’s controls. Each component is developed by a different team, using different technologies and practices, and deployed to a different stack/target –...
Aug. 31, 2016 05:15 PM EDT Reads: 260
SYS-CON Events announced today that Hitrons Solutions will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Hitrons Solutions Inc. is distributor in the North American market for unique products and services of small and medium-size businesses, including cloud services and solutions, SEO marketing platforms, and mobile applications.
Aug. 31, 2016 05:00 PM EDT Reads: 871
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
Aug. 31, 2016 04:45 PM EDT Reads: 3,838
SYS-CON Events announced today that Numerex Corp, a leading provider of managed enterprise solutions enabling the Internet of Things (IoT), will exhibit at the 19th International Cloud Expo | @ThingsExpo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Numerex Corp. (NASDAQ:NMRX) is a leading provider of managed enterprise solutions enabling the Internet of Things (IoT). The Company's solutions produce new revenue streams or create operating...
Aug. 31, 2016 04:39 PM EDT Reads: 149
Enterprises have forever faced challenges surrounding the sharing of their intellectual property. Emerging cloud adoption has made it more compelling for enterprises to digitize their content, making them available over a wide variety of devices across the Internet. In his session at 19th Cloud Expo, Santosh Ahuja, Director of Architecture at Impiger Technologies, will introduce various mechanisms provided by cloud service providers today to manage and share digital content in a secure manner....
Aug. 31, 2016 04:15 PM EDT Reads: 972
We are always online. We access our data, our finances, work, and various services on the Internet. But we live in a congested world of information in which the roads were built two decades ago. The quest for better, faster Internet routing has been around for a decade, but nobody solved this problem. We’ve seen band aid approaches like CDNs that attack a niche's slice of static content part of the Internet, but that’s it. It does not address the dynamic services-based Internet of today. It doe...
Aug. 31, 2016 04:12 PM EDT Reads: 206
[session] Architecting for the Cloud By @RagsS | @CloudExpo @IBMBluemix #Cloud #Docker #Microservices
As the world moves toward more DevOps and Microservices, application deployment to the cloud ought to become a lot simpler. The Microservices architecture, which is the basis of many new age distributed systems such as OpenStack, NetFlix and so on, is at the heart of Cloud Foundry - a complete developer-oriented Platform as a Service (PaaS) that is IaaS agnostic and supports vCloud, OpenStack and AWS. Serverless computing is revolutionizing computing. In his session at 19th Cloud Expo, Raghav...
Aug. 31, 2016 04:00 PM EDT Reads: 1,123
While DevOps promises a better and tighter integration among an organization’s development and operation teams and transforms an application life cycle into a continual deployment, Chef and Azure together provides a speedy, cost-effective and highly scalable vehicle for realizing the business values of this transformation. In his session at @DevOpsSummit at 19th Cloud Expo, Yung Chou, a Technology Evangelist at Microsoft, will present a unique opportunity to witness how Chef and Azure work tog...
Aug. 31, 2016 03:29 PM EDT Reads: 182
As cloud adoption continues to transform business, today’s global enterprises are challenged with managing a growing amount of information living outside of the data center. The rapid adoption of IoT and increasingly mobile workforce are exacerbating the problem. Ensuring secure data sharing and efficient backup poses capacity and bandwidth considerations as well as policy and regulatory compliance issues.
Aug. 31, 2016 03:15 PM EDT Reads: 309
Why do your mobile transformations need to happen today? Mobile is the strategy that enterprise transformation centers on to drive customer engagement. In his general session at @ThingsExpo, Roger Woods, Director, Mobile Product & Strategy – Adobe Marketing Cloud, covered key IoT and mobile trends that are forcing mobile transformation, key components of a solid mobile strategy and explored how brands are effectively driving mobile change throughout the enterprise.
Aug. 31, 2016 03:00 PM EDT Reads: 788
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, will discuss the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
Aug. 31, 2016 02:30 PM EDT Reads: 2,098
The Internet of Things can drive efficiency for airlines and airports. In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect with GE, and Sudip Majumder, senior director of development at Oracle, will discuss the technical details of the connected airline baggage and related social media solutions. These IoT applications will enhance travelers' journey experience and drive efficiency for the airlines and the airports. The session will include a working demo and a technical d...
Aug. 31, 2016 02:03 PM EDT Reads: 214
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
Aug. 31, 2016 02:00 PM EDT Reads: 3,280
SYS-CON Events announced today that eCube Systems, a leading provider of middleware modernization, integration, and management solutions, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. eCube Systems offers a family of middleware evolution products and services that maximize return on technology investment by leveraging existing technical equity to meet evolving business needs. ...
Aug. 31, 2016 11:15 AM EDT Reads: 926
Although it has gained significant traction in the consumer space, IoT is still in the early stages of adoption in enterprises environments. However, many companies are working on initiatives like Industry 4.0 that includes IoT as one of the key disruptive technologies expected to reshape businesses of tomorrow. The key challenges will be availability, robustness and reliability of networks that connect devices in a business environment. Software Defined Wide Area Network (SD-WAN) is expected to...
Aug. 31, 2016 11:12 AM EDT Reads: 255
Data is an unusual currency; it is not restricted by the same transactional limitations as money or people. In fact, the more that you leverage your data across multiple business use cases, the more valuable it becomes to the organization. And the same can be said about the organization’s analytics. In his session at 19th Cloud Expo, Bill Schmarzo, CTO for the Big Data Practice at EMC, will introduce a methodology for capturing, enriching and sharing data (and analytics) across the organizati...
Aug. 31, 2016 11:00 AM EDT Reads: 483
SYS-CON Events announced today that Pulzze Systems will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Pulzze Systems, Inc. provides infrastructure products for the Internet of Things to enable any connected device and system to carry out matched operations without programming. For more information, visit http://www.pulzzesystems.com.
Aug. 31, 2016 10:45 AM EDT Reads: 469
Announcing @TelecomReseller Named “Media Sponsor” of @CloudExpo Silicon Valley | #IoT #Cloud #BigData
SYS-CON Events announced today Telecom Reseller has been named “Media Sponsor” of SYS-CON's 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
Aug. 31, 2016 09:30 AM EDT Reads: 1,128
Traditional on-premises data centers have long been the domain of modern data platforms like Apache Hadoop, meaning companies who build their business on public cloud were challenged to run Big Data processing and analytics at scale. But recent advancements in Hadoop performance, security, and most importantly cloud-native integrations, are giving organizations the ability to truly gain value from all their data. In his session at 19th Cloud Expo, David Tishgart, Director of Product Marketing ...
Aug. 31, 2016 09:00 AM EDT Reads: 977
Almost two-thirds of companies either have or soon will have IoT as the backbone of their business in 2016. However, IoT is far more complex than most firms expected. How can you not get trapped in the pitfalls? In his session at @ThingsExpo, Tony Shan, a renowned visionary and thought leader, will introduce a holistic method of IoTification, which is the process of IoTifying the existing technology and business models to adopt and leverage IoT. He will drill down to the components in this fra...
Aug. 31, 2016 09:00 AM EDT Reads: 558