O1xhK-hPqY/Tom6AKJ_E_I/AAAAAAAAAOc/3dRZs1igUXA/s800/1vbox.jpg' alt='Changing The Number Of Virtual Processors After Guest Os Is Installed' title='Changing The Number Of Virtual Processors After Guest Os Is Installed' />Virtualizing SQL Server with VMware Architecting for Performance Storage The Five Key Principles of Database Storage Design. Greenspan Comments. This chapter from Virtualizing SQL Server with VMware Doing IT Right first covers the key aspects of storage architecture relevant to both physical and virtual environments as well as the differences you need to understand when architecting storage, specifically for virtualized SQL Server Databases. This chapter is from the book All aspects of architecting your SQL Server Database for performance are important. Storage is more important than most when compared to the other members of the IT Food Group family we introduced in Chapter 5, Architecting for Performance Design, which consists of Disk, CPU, Memory, and Network. Our experience has shown us, and data from VMware Support validates this belief, that more than 8. Understanding the storage architecture in a virtualized environment and getting your storage architecture right will have a major impact on your database performance and the success of your SQL Server virtualization project. Bear in mind as you work through your storage architecture and this chapter that virtualization is bound by the laws of physicsit wont fix bad code or bad database queries. Changing The Number Of Virtual Processors After Guest Os Is Installed' title='Changing The Number Of Virtual Processors After Guest Os Is Installed' />However, if you have bad code and bad queries, we will make them run as fast as possible. This chapter first covers the key aspects of storage architecture relevant to both physical and virtual environments as well as the differences you need to understand when architecting storage, specifically for virtualized SQL Server Databases. Many of the concepts we discuss will be valid for past versions of SQL Server and even the newest release, SQL Server 2. We provide guidance on what our experience has taught us are important database storage design principles. We present a top down approach covering SQL Server Database and Guest OS Design, Virtual Machine Template Design, followed by VMware v. Sphere Hypervisor Storage Design and then down to the physical storage layers, including using server side flash acceleration technology to increase performance and provide greater return on investment. We conclude the chapter by covering one of the biggest IT trends and its impact on SQL Server. Throughout this chapter, we give you architecture examples based on real world projects that you can adapt for your purposes. When designing your storage architecture for SQL Server, you need to clearly understand the requirements and have quantitative rather than subjective metrics. Our experience has taught us to make decisions based on fact and not gut feeling. You will need to benchmark and baseline your storage performance to clearly understand what is achievable from your design. Benchmarking and baselining performance are critical to your success, so weve dedicated an entire chapter Chapter 1. How to Baseline Your Physical SQL Server System to those topics. Changing The Number Of Virtual Processors After Guest Os Is Installed' title='Changing The Number Of Virtual Processors After Guest Os Is Installed' />In this chapter, we discuss some of the important storage system component performance aspects that will feed into your benchmarking and baselining activities. When architecting storage for SQL Server, its important to understand a few important principles. Changing The Number Of Virtual Processors After Guest Os Is Installed' title='Changing The Number Of Virtual Processors After Guest Os Is Installed' />SQL Server Virtual Machine Storage Design. We have now covered how to optimize storage performance for SQL Server and Windows at the operating system level. Welcome to the Citrix Community page where you can connect with experts and join the conversation about Citrix technologies. InformationWeek. com News, analysis and research for business technology professionals, plus peertopeer knowledge sharing. Engage with our community. Microsoft. The fiercely competitive software giant is positioning its wares for cloud computing with software and services. The companys two cash cows operating. In article, I am going to show you how to install macOS Sierra 10. VMware player on Windows 10. OS Sierra on VMware installl macOS Sierra VMware. A Windows virtual machine can run a complete Windows Installation on Linux or Windows, with full hardware and software compatibility. Miguel Thanks for you comment. The size of the LUN is a resulting equation between the final size of the virtual desktops and the number of VMs per datastore. VMware, Inc. 7 This manual, the Installation and Administration Guide describes setting up, installing, and configuring VMware Virtual Desktop Manager. New mainline Linux kernel updates for System z from git390. Merge. These will help guide your design decisions and help you achieve acceptable performance both now and in the future. These principles are important because over the past decade, CPU performance has increased at a much faster pace than storage performance, even while capacity has exploded. Principle 1 Your database is just an extension of your storage. The first principle is highlighted in Figure 6. A database is designed to efficiently and quickly organize, retrieve, and process large quantities of data to and from storage. So increasing the parallelism of access to storage resources at low latency will be an important goal. Later in this chapter, we cover how to optimize the architecture of your database to maximize its storage performance and parallelism. When you understand this principle, its easy to understand why getting your storage design and performance is so critical to the success of your SQL Server Database virtualization project. Figure 6. 1 Quote from Michael Webster, VMworld 2. Principle 2 Performance is more than underlying storage devices. The next key principle is that storage performance is more than just about underlying storage devices and spindles, although they are very important too. SQL Server storage performance is multidimensional and is tightly coupled with a number of different system components, such as the number of data files allocated to the database, the number of allocated v. CPUs, and the amount of memory allocated to the database. This is why we like to use the term IT Food Groups, because it is so important to feed your database the right balance of these critical resources. This interplay between resources such as CPU, Memory, and Network and their impact on storage architecture and performance will be covered in subsequent sections of this chapter. Principle 3 Size for performance before capacity. Figure 6. 2 is loosely based on the eighteenth century quote The bitterness of poor quality remains long after the sweetness of low price is forgotten, by Benjamin Franklin. Both quotes are extremely relevant to SQL Server database and storage performance. Figure 6. 2 Quote from Michael Webster, VMworld 2. This brings us to the next key principle. In order to prevent poor performance from being a factor in your SQL Server virtualization project refer to Figure 6. IOPS and latency, then capacity will take care of itself. Capacity is the easy part. Download Game Ve May Vi Tinh Mien Phi. We will show you later in this chapter how compromising on certain storage configurations on the surface can actually cost you a lot more by causing unusable capacity due to poor performance. Principle 4 Virtualize, but without compromise. The next principle is that virtualizing business critical SQL Server databases is all about reducing risk and not compromising on SLAs. Virtualize, but without compromise. There is no need to compromise on predictability of performance, quality of service, availability, manageability, or response times. Your storage architecture plays a big part in ensuring your SQL databases will perform as expected. As we said earlier, your database is just an extension of your storage. We will show you how to optimize your storage design for manageability without compromising its performance. Believe it or not, as big of advocates as we are about virtualizing SQL Server, we have told customers in meetings that now is not the right time for this database to be virtualized. This has nothing to do with the capability of v. Sphere or virtualization, but more to do with the ability of the organization to properly operate critical SQL systems and virtualize them successfully, or because they are not able or willing to invest appropriately to make the project a success. If you arent willing to take a methodical and careful approach to virtualization projects for business critical applications, in a way that increases the chances of success, then its not worth doing. Understand, document, and ensure requirements can be met through good design and followed by testing and validation. It is worth doing, and it is worth Doing It RightPrinciple 5 Keep it standardized and simple KISSThis brings us to the final principle.