Hyper-Converged Infrastructure
Article | October 10, 2023
Flexible data access, enhanced disaster recovery, and reduced infrastructure staff burden are some of the biggest reasons businesses migrate to innovative and reliable cloud technologies. Infrastructure-as-a-service or Iaas, is one such cloud computing model that has simplified the lives of enterprises and developers by reducing their infrastructure burden. Iaas gives you access to servers, networking, storage, and virtualization features.
IaaS is fast becoming one of the biggest trends in cloud computing. According to Technavio's latest report, the IaaS market projects a growth of USD 141.77 billion, registering a CAGR of 28.2% from 2021 to 2026.
“So many systems end up as a big dreaded ball of mud (which is totally preventable) when designing an enforceable architecture model.”
Alexander von Zitzewitz, CEO, hello2morrow Inc.
But, how can IaaS technology help you grow and advance your business? Here are some key advantages of switching to IaaS:
Better Performance
One of the more well-known benefits of IaaS is achieving a higher performance level from your infrastructure. Rather than worrying about the latest hardware for your infrastructure, with IaaS in place, your in-house IT team will be able to focus more on working on your business goals and objectives through technology.
Because the SLA (Service Level Agreement) with your IaaS cloud service provider can ensure that you are getting the best performance from your cloud provider's infrastructure. An SLA will ensure that your cloud provider is accountable for continuous upgrades and the best possible service for your business.
Decreased CapEx
With IaaS technology, you can choose the IaaS cloud service provider of your choice. Typically, a cloud provider has a more reliable, robust, and redundant infrastructure setup than what would be feasible and financially realistic in an office environment. This means you can save on maintenance, purchase, and operating hardware-related business expenditures. Additionally, it also decreases your overall IT-related capital expenditure (CapEx).
Increased Flexibility
IaaS increases your scalability and flexibility exponentially. Your business can scale up and down as needed and on-demand.
For example, say your business is hosting a short-term campaign to drive more traffic to your website. IaaS will automatically provision resources to ensure your business infrastructure is well equipped to handle the sudden incoming traffic boost.
Scale- Up Your Business
Additionally, IaaS gives your growing business the flexibility it needs from its IT infrastructure.
For example, if you’re considering opening a new office in a different location, you don’t need to spend extra on new hardware; instead, you can directly connect to your infrastructure virtually. This means you don’t need to invest in additional infrastructure for business expansion continually.
Managed-Task Virtualization
As IaaS supports the virtualization of management tasks, your IT is free to concentrate on other, more thought-intensive work. This will not only drive more efficiency but also help boost ROI.
Disaster Recovery
During disasters like an earthquake or floods, IaaS ensures smooth business operations. Disaster Recovery as a Service (DRaaS) stores and replicates data in multiple data centers in different geographical locations.
So even if a disaster or mishap causes significant damage to the data center, your IaaS providers can quickly restore the data from another data center.
Conclusion
IaaS allows your businesses to utilize the cloud to achieve your IT goals. It is flexible, scalable, reliable, cost-effective and provides seamless access to maximize business continuity. Therefore, you should choose a reliable IaaS cloud provider who can deliver a variety of cloud infrastructure solutions.
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Hyper-Converged Infrastructure
Article | September 14, 2023
The cloud has dispelled many myths and self-made barriers during the past ten years. The utilization of cloud infrastructure keeps proving the innovators right. The cloud has experienced tremendous adoption, leading to the development of our most pervasive - and disorderly - IT infrastructure systems. This move calls for a new level of infrastructure orchestration to manage the complexity of changing hybrid systems.
There are many challenges involved in moving from an on-premises-only architecture to a cloud environment. IT operations teams must manage a considerably more complex overall environment due to this hybrid IT approach. Because of the variable nature of the cloud, IT directors have discovered fast that what worked to manage on-premises infrastructures may not always be applicable.
Utilize Infrastructure as Code Tools to Provide Cloud Infrastructure as a Service
IT has traditionally managed infrastructure orchestration and automation for business tools and platforms. Service orchestration and automation platforms (SOAPs) let non-IT workers turn on and off cloud infrastructure while IT maintains control. End-users are empowered with automated workflows that spin up infrastructure on-demand instead of opening a ticket for every request and waiting on the helpdesk or cloud service team. Automation benefits both end-users and ITOps. Users gain speed, and IT decides which cloud provider and how much cloud infrastructure is used.
Give End Users Access to Code, Low Code, or No Code
Modern SOAP lets citizen automators access workflow automation by preference or competence. SOAPs allow end-users to utilize code or no-code, depending on their preference. SOAPs let end-users access automation through Microsoft Teams, Slack, and ServiceNow. Developers and technical team members can access the platform's scripts and code.
As enterprises outgrow their legacy systems, infrastructure orchestration solutions become essential. Using a service orchestration and automation platform is one way to manage complicated infrastructures. SOAPs are built for hybrid IT environments and will help organizations master multi-cloud and on-premises tools.
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Hyper-Converged Infrastructure
Article | October 3, 2023
What Is IT Infrastructure Security?
If you are reading this blog, we would like to assume that you are either an aspiring cybersecurity professional or a business owner looking for ways to improve their network security. A business IT infrastructure includes networks, software, hardware, equipment, and other facilities that make up an IT network. These networks are applied to establish, monitor, test, manage, deliver, and support IT services.
So, IT infrastructure security describes the process of safeguarding the core networking infrastructure, and it is typically applied to enterprise IT environments. You can improve IT infrastructure security by installing protective solutions to block unauthorized access, theft, deletion, and data modification.
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DevOps
Article | May 5, 2023
Adopting DevOps and CD in IaaS environments is a strategic imperative for organizations seeking to achieve agility, competitiveness, and customer satisfaction in their software delivery processes.
Contents
1. Introduction
2. What is IaaS Virtualization?
3. Virtualization Techniques for DevOps and Continuous Delivery
4. Integration of IaaS with CI/CD Pipelines
5. Considerations in IaaS Virtualized Environments
5.1. CPU Swap Wait
5.2. CPU System/Wait Time for VKernel:
5.3. Memory Balloon
5.4.Memory Swap Rate:
5.5. Memory Usage:
5.6. Disk/Network Latency:
6. Industry tips for IaaS Virtualization Implementation
6.1. Infrastructure Testing
6.2. ApplicationTesting
6.3. Security Monitoring
6.4. Performance Monitoring
6.5. Cost Optimization
7. Conclusion
1. Introduction
Infrastructure as a Service (IaaS) virtualization presents significant advantages for organizations seeking to enhance their agility, flexibility, and speed to market within the DevOps and continuous delivery frameworks. Addressing the associated risks and challenges is crucial and can be achieved by employing the appropriate monitoring and testing techniques, enlisted further, in this blog.
IaaS virtualization allows organizations to provision and de-provision resources as needed, eliminating the need for long-term investments in hardware and data centers. Furthermore, IaaS virtualization offers the ability to operate with multiple operating systems, databases, and programming languages, empowering teams to select the tools and technologies that best suit their requirements.
However, organizations must implement comprehensive testing and monitoring strategies, ensure proper security and compliance controls, and adopt the best resource optimization and management practices to leverage the full potential of virtualized IaaS. To achieve high availability and fault tolerance along with advanced networking, enabling complex application architectures in IaaS virtualization, the blog mentions five industry tips.
2. What is IaaS Virtualization?
IaaS virtualization involves simultaneously running multiple operating systems with different configurations. To run virtual machines on a system, a software layer known as the virtual machine monitor (VMM) or hypervisor is required.
Virtualization in IaaS handles website hosting, application development and testing, disaster recovery, and data storage and backup. Startups and small businesses with limited IT resources and budgets can benefit greatly from virtualized IaaS, enabling them to provide the necessary infrastructure resources quickly and without significant capital expenditures.
Virtualized IaaS is a potent tool for businesses and organizations of all sizes, enabling greater infrastructure resource flexibility, scalability, and efficiency.
3. Virtualization Techniques for DevOps and Continuous Delivery
Virtualization is a vital part of the DevOps software stack. Virtualization in DevOps process allows teams to create, test, and implement code in simulated environments without wasting valuable computing resources. DevOps teams can use the virtual services for thorough testing, preventing bottlenecks that could slow down release time. It heavily relies on virtualization for building intricate cloud, API, and SOA systems. In addition, virtual machines benefit test-driven development (TDD) teams that prefer to begin their troubleshooting at the API level.
4. Integration of IaaS with CI/CD Pipelines
Continuous integration is a coding practice that frequently implements small code changes and checks them into a version control repository. This process not only packages software and database components but also automatically executes unit tests and other tests to provide developers with vital feedback on any potential breakages caused by code changes.
Continuous testing integrates automated tests into the CI/CD pipeline. For example, unit and functionality tests identify issues during continuous integration, while performance and security tests are executed after a build is delivered in continuous delivery. Continuous delivery is the process of automating the deployment of applications to one or more delivery environments.
IaaS provides access to computing resources through a virtual server instance, which replicates the capabilities of an on-premise data center. It also offers various services, including server space, security, load balancing, and additional bandwidth. In modern software development and deployment, it's common to integrate IaaS with CI/CD pipelines. This helps automate the creation and management of infrastructure using infrastructure-as-code (IAC) tools. Templates can be created to provision resources on the IaaS platform, ensuring consistency and meeting software requirements. Additionally, containerization technologies like Docker and Kubernetes can deploy applications on IaaS platforms.
5. Considerations in IaaS Virtualized Environments
5.1. CPU Swap Wait
The CPU swap wait is when the virtual system waits while the hypervisor swaps parts of the VM memory back in from the disk. This happens when the hypervisor needs to swap, which can be due to a lack of balloon drivers or a memory shortage. This can affect the application's response time. One can install the balloon driver and/or reduce the number of VMs on the physical machine to resolve this issue.
5.2. CPU System/Wait Time for VKernel
Virtualization systems often report CPU or wait time for the virtualization kernel used by each virtual machine to measure CPU resource overhead. While this metric can't be directly linked to response time, it can impact both ready and swap times if it increases significantly. If this occurs, it could indicate that the system is either misconfigured or overloaded, and reducing the number of VMs on the machine may be necessary.
5.3. Memory Balloon
Memory ballooning is a memory management technique used in virtualized IaaS environments. It works by injecting a software balloon into the VM's memory space. The balloon is designed to consume memory within the VM, causing it to request more memory from the hypervisor. As a result, if the host system is experiencing low memory, it will take memory from its virtual infrastructures, thus negatively affecting the guest's performance, causing swapping, reduced file-system buffers, and smaller system caches.
5.4. Memory Swap Rate
Memory swap rate is a performance metric used in virtualized IaaS environments to measure the amount of memory being swapped to disk. When the swap rate is high, it leads to longer CPU swap times and negatively affects application performance. In addition, when a VM is running, it may require more memory than is physically available on the server. In such cases, the hypervisor may use disk space as a temporary storage area for excess memory. Therefore, to optimize, it is important to ensure that VMs have sufficient memory resources allocated.
5.5. Memory Usage
Memory usage refers to the amount of memory being used by a VM at any given time. Memory usage is assessed by analyzing the host level, VM level, and granted memory. When memory usage exceeds the available physical memory on the server, the hypervisor may use disk space as a temporary storage area for excess memory, leading to performance issues. The disparity between used and granted memory indicates the overcommitment rate, which can be adjusted through ballooning.
5.6. Disk/Network Latency
Some virtualization providers provide integrated utilities for assessing the latency of disks and network interfaces utilized by a virtual machine. Since latency directly affects response time, increased latency at the hypervisor level will also impact the application. An excessive amount of latency indicates the system is overloaded and requires reconfiguration. These metrics enable us to monitor and detect any negative impact a virtualized system might have on our application.
6. Industry tips for IaaS Virtualization Implementation
Testing, compliance management and security arecritical aspects of managing virtualized IaaS environments . By implementing a comprehensive strategy, organizations ensure their infrastructure and applications' reliability, security, and performance.
6.1. Infrastructure Testing
This involves testing the infrastructure components of the IaaS environment, such as the virtual machines, networks, and storage, aiming to ensure the infrastructure is functioning correctly and that there are no performance bottlenecks, security vulnerabilities, or configuration issues. Testing the virtualized environment, storage testing (testing data replication and backup and recovery processes), and network testing are some of the techniques to be performed.
6.2. Application Testing
Applications running on the IaaS virtual environment should be thoroughly tested to ensure they perform as expected. This includes functional testing to ensure that the application meets its requirements and performance testing to ensure that the application can handle anticipated user loads.
6.3. Security Monitoring
Security monitoring is critical in IaaS environments, owing to the increased risks and threats. This involves monitoring the infrastructure and applications for potential security threats, vulnerabilities, or breaches. In addition, regular vulnerability assessments and penetration testing help identify and address potential security issues before they become significant problems.
6.4. Performance Monitoring
Performance monitoring is essential to ensuring that the underlying infrastructure meets performance expectations and has no performance bottlenecks. This comprises monitoring metrics such as CPU usage, memory usage, network traffic, and disk utilization. This information is used to identify performance issues and optimize resource usage.
6.5. Cost Optimization
Cost optimization is a critical aspect of a virtualized IaaS environment with optimized efficiency and resource allocation. Organizations reduce costs and optimize resource usage by identifying and monitoring usage patterns and optimizing elastic and scalable resources. It involves right-sizing resources, utilizing infrastructure automation, reserved instances, spot instances (unused compute capacity purchased at a discount), and optimizing storage usage.
7. Conclusion
IaaS virtualization has become a critical component of DevOps and continuous delivery practices. To rapidly develop, test, and deploy applications with greater agility and efficiency by providing on-demand access to scalable infrastructure resources to Devops teams, IaaS virtualization comes into picture. As DevOps teams continue to seek ways to streamline processes and improve efficiency, automation will play an increasingly important role. Automated deployment, testing, and monitoring processes will help reduce manual intervention and increase the speed and accuracy of development cycles. In addition, containers will offer a lightweight and flexible alternative to traditional virtualization, allowing DevOps teams to package applications and their dependencies into portable, self-contained units that can be easily moved between different environments. This can reduce the complexity of managing virtualized infrastructure environments and enable greater flexibility and scalability. By embracing these technologies and integrating them into their workflows, DevOps teams can achieve greater efficiency and accelerate their delivery of high-quality software products.
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