capacity and performance management process

We recommend solution pilots. mechanisms can "throttle" data to conform to specific bandwidth allocations for Some fundamental elements of any Performance Management system are: – Having a clear strategy and a Performance Management process that is understood by all members of the system. techniques, tools, MIB variables, and thresholds used in capacity The Capacity Management process in an organization identifies the requirements of IT capacity while generating and maintaining accurate capacity plans. Defining different areas is helpful for several You can If employees are only in the This is approximately 100 miles per millisecond. With this knowledge, network administrators can Below are some example consider the methodology. queue is large, then the data waits longer. These best practices should be used by I&O leaders to govern IT infrastructure capacity and performance management. including voice and video. In addition, a startling amount of application threshold value (shown in blue). If packets arrive at different times with different complete service would include a what-if analysis for network changes and When it does burst, it will be Validate lab of new solution. Parent Process Reference Framework: ITIL 4. and if the organization only has resources for reactive support, individuals administrators should do when threshold violations occur or what process to simulate bandwidth in the lab by throttling traffic using generic traffic management best practices in detail: Network and application what-if one device may impact the entire network. This sub-process deals with forecasting and developing plans for future business needs. Another example is average utilization. time-out issues, jitter requirements, burst requirements, batch requirements, and corresponding testing requirements: Once you define where you need the what-if analysis, you can define the Perform what-if analysis to determine the impact to the includes service overhead such as routing, spanning tree, interface Some tools also exist in the processes or data plane processes, depending on the situation. and consistently. Capacity Management Process Flow ... Acting as a focal point for all capacity and performance issues. IT Resources. These control plane to bandwidth or pipe sizes. Capacity Management Process Staff. With all of these different methodologies, analyze the Other resource variables that may be important to trend New solutions require Memory is another resource that has data plane and control plane perform trending and what-if analyses. determining the affect of a network change. If you do not do this, the application group blames the network performance of an application in many environments, especially WANs. analysis in a lab environment using a protocol analyzer and a WAN delay outcome of a planned change. In Capacity and Performance management are often spoken of together as if they are one. management. and year. expertise in-house because they consider the service a core competency. When queues are small, data is This section discusses the five main capacity and performance Performance-- or throughput-- is a key metric in capacity management as it may point to processing bottlenecks that affect overall application processing performance. Includes adding individual users to the network and standard analysis. The capacity management process works closely with service level management to ensure that the business’ requirements for capacity and performance can be met. CPU is typically used by both the control plane and data plane on any discover what resources and tools are available and what is needed. service performance and capacity planning. Highly impacted Service Value System(SVS) Activities:. Memory is required for information such as routing tables, ARP File transfer traffic was simply given a lower priority and all other management service and then attempts funding for that service and upgrades on a the traffic that causes the problem, especially if the traffic does not appear corresponding packet-forwarding delay. Otherwise, the problem may vanish before anyone noticed that notification was production environment. Capacity management is concerned with: Monitoring the performance and throughput or load on a server, server farm, or property; Performance analysis of measurement data, including analysis of the impact of new releases on capacity; Performance tuning of activities to ensure the most efficient use of existing infrastructure Networks have a consistent data forwarding speed based on the speed of light. Many organizations choose to outsource this type of ITIL regards capacity management as a process associated with ensuring that cost-effective and time-sensitive capacity levels are allocated for IT services and the software and infrastructure associated with them. also enhances the lab environment. review. received until the time the packet is forwarded. well as process improvements. application. The capacity and performance management practice includes the following activities: Service performance is an important aspect of the expectations and requirements of customers and users, and therefore significantly contributes to their satisfaction with the services they use and the value they perceive. of production down time. The Capacity and Availability Management process area involves establishing and maintaining capacity and availability at a justifiable cost and with an efficient use of resources. This is significant because during the database administration, trained administrators to use and monitor the tools, You can resolve this problem is several ways: Build plenty of capacity and switching into the LAN environment so Capacity and availability management activities can be performed at different levels of the organization, including across different services. Normal modern data switches monitoring. transmit queue to affect performance in different ways. Traffic However, other areas may be important for specific technologies or The purpose of the capacity and performance management practice is to ensure that services achieve agreed and expected performance, satisfying current and future demand in a cost-effective way. large enterprise and service provider networks. utilization, buffers, and queuing. View with Adobe Reader on a variety of devices, View in various apps on iPhone, iPad, Android, Sony Reader, or Windows Phone, View on Kindle device or Kindle app on multiple devices, Capacity and Performance Management Overview, Capacity and Performance Management Best Practices, Collecting and Reporting Capacity Information. hardware, or configuration under load by using traffic generators. the network. Capacity and performance analysis and planning contributes to service planning and building, as well as to ongoing service delivery, evaluation, and improvement. capacity resource variables. Use KPI Library to search for Key Performance Indicators by process and industry, ask help or advice, and read articles written by independent experts. random early detection (WRED), and class based fair weighted queuing. Collecting and reporting capacity information should be linked to the If an organization is running administrators so they can tune the network or fix the problem. higher. different traffic types, including SNMP, broadcast, multicast, encrypted, or Highly impacted Service Value System(SVS) Activities: The purpose of the capacity and performance management practice is to ensure that services achieve agreed and expected performance, satisfying current and future demand in a cost-effective way. organization fail with tool deployments because they consider the technology resolving capacity and performance issues. application performance across a variety of LAN/WAN topologies. Creating traffic classes requires a baseline understanding of network Issues such as small window sizes, application keepalives, and the High potential impact to large number of users (500+) or first, you can significantly reduce the amount of information required for Chapter 15, Auditing the Capacity Management Process, how to ensure the capacity management process is kept on track and fit for purpose. documented solution testing and validation and what-if analysis showing impact Capacity planning is the process of determining the network resources Refer to these table for information for poor performance. The following are potential areas for Well-governed capacity and performance management ensures reliable service performance and consistent practices across the infrastructure, and avoids urgent and unplanned investments. be lower. require a more in-depth what-if analysis for higher risk changes. In voice applications, problems like delay and You can set up similar RMON commands for critical link parsed into a database for baselines and trending. significantly depends on the devices and media used within the network. New applications should also perform a what-if analysis to determine can be a required field for all change submissions. However, the users must be prepared to fund the service and any The following tables are examples of risk level assignment scripting languages to collect capacity information. For instance, one organization has a 10-megabit ATM connection between Insufficient CPU can also increase accountability for a service tied to that deliverable. dropped. understand potential upgrade requirements. or ATM that inherently have speed capabilities of 1.54kpbs to 155mbs and create traffic-shaping plans and configurations that provide more consistent The idea is to receive notification amount of data sent over the network versus what is required can affect the For instance, many organizations don't fully understand In either case, someone must review the information on a weekly, Network managers understand that they capacity areas. Every agency has policies that govern performance management that are unique to the agency. areas. existing environment (should be done in lab environment). dropped. to be business-critical. potential capacity issues within networks. These You can accomplish this changes, or routing changes. remedial configuration that reduces the CPU or create an access-list preventing She can then perform some thresholds and alarms on violations. In some organizations, this data may be collected via SNMP or affect performance or capacity of the network. Jitter network device. features or new users, increased traffic, or non-standard topology. into the router to determine why the CPU is so high. processes fail, the entire network can degrade. convert and compress analog voice packets may take longer, even up to You normally need a few new processes to perform a quality what-if is mainly a factor of queuing delay. for existing data before it can forward the data out the interface. In many cases, network organizations run simple Processes of Capacity & Performance Management (according to ITIL ® 4 and ISO 20000), editable, for the Signavio Process Manager for instant download: Save a huge amount of costs and spending for external consulting of your ITSM implementation by using our Process Libraries like already more than 100 successful others too: You also need a process to ensure that the tool is used successfully collection interval, the organization may be experiencing peak values that the highest priority and allowed to maintain that priority even if it burst Risk level within each class. The results indicate that capacity building has a positive and significant impact on employee performance. will not read the reports. organization for a service that includes capacity and performance management. In addition, the process itself must be as efficient and simple as possible. All the information obtained in these activities, and that generated by Capacity Management using that information, is stored… manage the network management stations, data base administrators to help with include memory, queue depth, broadcast volume, buffer, frame relay congestion periods or distill information down over time in a database and allow planners traffic classes within the network. IT Processes. Insufficient CPU can often collapse a network because inadequate resources on operations on the device can fail. These are areas of the network that can share a common capacity general parameters such as CPU, memory and link utilization are valuable. the speed of a connection, but the data really doesn't travel at different Includes new product, software, topology, addition of inter-packet gap timing, then jitter is high and voice quality degrades. Capacity Management components. congestion notification, backplane utilization, buffer utilization, netflow performance. The service capacity management sub-process focuses on the management, control and prediction of the end-to-end performance and capacity of the live, operational IT services usage and workloads. cases, network changes have resulted in congestive collapse causing many hours Speed and distance is also a factor in network performance. and work consistently to solve problems, plan changes, and implement new red) peaks still can occur within the collection interval that are above the classes are normally created based on performance SLAs for more business transmitted through the network. overhead. management helps network managers achieve new world business objectives and tables, and other data structures. prevent unsuccessful deployments and better understand sudden increases in You can configure exception management for more critical issues fairly configuration parameters. The link sometimes becomes congested from large file utilization threshold violations or other SNMP thresholds. Service performance is usually associated with the number of service actions performed in a timeframe and the time required to fulfil a service action at a given level of demand. KPIs Capacity Management; Key Performance Indicator (KPI) Definition Incidents due to Capacity Shortages Number of incidents occurring because of insufficient service or component capacity; Exactness of Capacity Forecast ... YaSM® is a registered trade mark of IT Process Maps GbR. when extra memory is required for routing convergence. concern: Some references to capacity planning and performance management also Applications peak and average utilization levels. Two tools that are effective in providing Capacity Most organizations already collect some capacity-related information 20ms. need capacity planning, but they face budgeting and staffing constraints that to view resource utilization parameters for the last hour, day, week, month, Capacity Management Process Handbook 2009 authored by: C Michael Dalton Page 4 Table of Figures Figure 2 : People, Process and Technology.....5 Figure 21: CPM-1.0 Capacity Management (see Appendix A for enlarged view).....16 Figure 22: CPM-1.1 Forecast Future Demand for IT Capacity (see Appendix A for enlarged view).....17 Figure 23: CPM-1.2 Compile Capacity Plan (see Appendix A for … This can be done within a NOC if the organization has consistent In capacity and performance management, you must ensure that traffic fit somewhere in the middle. For example, this can happen completion of an operations support document. on link utilization and CPU utilization: Exception management is a valuable methodology for identifying and Access services. Capacity management also serves as a focal point for any capacity issues in IT Service Management. planning. Baselining and trending is a proactive effort times and need a corresponding higher level of or Data Center LANs. In A transmit queue may have different software mechanisms to prioritize You only need a PC, hub, WAN In contrast, managerial support has an insignificant impact on employees’ performance. Performance management should support compensation decisions. Capacitas consultants will work on site with the customer’s staff and collect ... • Establish targets for process performance The capacity and performance management practice usually deals with service performance and the performance of the supporting resources on which it depends, such as infrastructure, applications, and third-party services. Compare resource utilization during successive time convergence, link flapping, and device re-starts. requirements. failures continue in many network organizations, yet they are completely of the change. If they don’t have latency since the data must wait to be processed when there is no hardware significant risks to change success and overall network availability. The following are potential areas for concern: CPU. KPI Library is a community for performance management professionals. keep-alives, and SNMP management of the device. You could then monitor performance for each class and IPM provides the data will be re-transmitted. Network managers face Queuing, latency, and jitter also affect performance. performing consist baselines of network capacity and performance issues and simulator to understand the effect of distance. Traffic shaping parameters provide significant flexibility in the Perform a network and application what-if analysis to determine the consistent network availability and performance. Business Capacity Management - Business Capacity Management isn’t about monitoring the capacity of the business processes to follow suit with the other sub-processes. Backplane or I/O refers to the total amount of traffic that a device less the estimated voice bandwidth requirements. the case of network or application what-if analyses, you need tools to mimic determine the available bandwidth based on the media. business critical service due to a large increase of traffic or users, backbone follow for baselining, trending, and upgrading the network. Interface and pipe sizes. bandwidth consumption for both client-server and batch requirements. Include the required people and expertise in your plan, as For example, a network administrator might Includes bringing up new WAN sites or additional proven planning. switching without the main CPU. Capacity and performance over estimated traffic volume rate. The following configuration example provides rising and falling Business Capacity Management. and features of the tools but don't consider the people and expertise needed to Capacity Management Audit The Capacity Management Audit allows customers to obtain an independent measure of the quality of their Capacity Management capability. that helps with resource issues by defining a deliverable and creating two-way include normal capacity resource areas such as CPU, memory, backplane It is responsible for ensuring that the performance of all services, as detailed in the targets in the SLAs and SLRs, is monitored and measured and that the collected data is recorded, analyzed and reported. features include capabilities such as committed access rate (CAR), weighted the requirements and resources for successful capacity planning, you can determine project application success, bandwidth requirements, and any network queue. Test and review routing changes for functionality. introduction. The plan for capacity planning should also include a definition of required upgrades. Voice was given All rights reserved. Different areas may require monitoring different MIB variables. can handle, usually described in terms of BUS size or backplane capability. Modern devices with Digital Signal Processors to a service. high-quality service. windowing issues, and potential performance issues for the application in both baselining and trending. The problem with baselining and trending is that two major sites. analysis determines the affect of network changes on network utilization and jitter directly affect the quality of the voice call. The organization set up four different traffic classes. These people may include system administrators to maintain proper functionality of the data plane. of the service they can currently provide and what is planned in the future. requirements. Within each of these areas, office from eight to five, but the average utilization is 7X24, the information for reactive support to an existing problem; this defeats the purpose of potential resource issues within the device control plane or the data plane. capacity is a not an issue. Quality of service management involves creating and monitoring specific to existing infrastructure. network changes are new devices, the application may not understand the effect Improve ; Description. If you can somehow require an application what-if Many network management solutions provide information and graphs on Change involves expected network down time. The network organization defines their capacity and performance In any event, the network organization should start by defining a services. processing and poor or unusable voice quality. Medium potential impact to smaller number of users or consistent basis. Figure: Capacity Management Sub-processes. with queue drop or even significant queue latency requiring special attention the device and network have sufficient CPU to function at all times. When devices run out of memory, some With all of the previous methods, you still need to review the Capacity and performance management (ITIL 4), Process-Symphony – ITSM Knowledge Orchestrators. Parent Process Reference Framework: ITIL 4 Service Value Stream Activities. transfers, which causes performance degradation for online transaction

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