One platform to rule your it stack

What our customers are saying on TrustRadius

My SolarWinds Network Performance Monitor Review

«SolarWinds is an all in one solution. We don’t need to install different servers for different packages. It provides easy installation, easy maintenance, easy monitoring by NOC and end-users of NOC. SolarWinds tools have more features than other tools. We have done POC for many and we are satisfied with SolarWinds performance.»

Network monitoring made easy using SolarWinds NPM

«SolarWinds Network Performance Monitor is being used effectively throughout our organization. It’s being used across different regions of the world with multiple instances setup. It’s able to manage and monitor our entire customer infrastructure proactively.»

SolarWinds NPM Review in a Nutshell

«Network devices are the backbone of any organization, so I can say with confidence, to make sure the network is up and functional 24*7, you can deploy SolarWinds which is easy to install and manage. It provides rich sets of metrics and alerts out of the box. The cool thing about this is it is very easy to install and manage.»

An excellent monitoring and alerting tool for applications and servers

«It really is a one-stop-shop for monitoring and pulls all the metrics and alerts into one single pane of glass, making the life of the support teams a lot easier.»

SolarWinds Server & Application Monitor is a Fantastic Product

«I would 100% recommend SolarWinds Server & Application Monitor to a colleague. It’s a cheaper, versatile, easy to use product.»

SolarWinds Server & Application Monitor Review

«We selected SolarWinds Server & Application Monitor over AppDynamics because SolarWinds product suited our needs better. We needed better infrastructure monitoring and internal application monitoring brought from other vendors.»

SolarWinds Database Performance Analyzer Review

«We’ve been able to fine tune all our databases for peak performance.»

Real ROI that added a 9 to our uptime.

«Uptime has gone up a whole 9 because of SolarWinds DPA.»

Just works!

«The tool helped when monitoring the newly uploaded database to see what caused the crash or if it was randomly occurring. It appeared it was a server issue and not the software

SolarWinds Virtualization Manager Review

«To be able to see everything on a single pane of glass is crucial to maintaining and understanding your virtualization environment. To be able to see which VM is consuming more memory than it should, to seeing the overall health of your environment allows you to be proactive.»

SolarWinds Virtualization Manager Review — Out of this World for the Enterprise

«It has helped us achieve 99.9% uptime of our virtualisation estate!»

SolarWinds VMAN Review — A service provider perspective.

«Every business I have worked with who have adopted VMAN has seen an efficiency improvement. This means that they are able to run more guests on the same hardware, leading to an increased time before requiring further CAPEX for additional capacity.»

Realize the Single-Pane-Of-Glass

«We have benefited immensely from SolarWinds Network Configuration Manager (NCM) by using automated network configuration tools to automate simple network changes across the board»

Great tool for Network Manager — SolarWinds NCM

«This is the module I definitely will recommend»

A good, easy to use and understand Network Configuration Manager!

«It has saved time, which saves money.»

Solarwinds SRM — The Ultimate Storage Monitoring Tool.

«We recently purchased the SRM module for Orion to integrate with Solarwinds DPA and NPM. Its made a huge difference in terms of visibility and linking up with performance issues from storage.»

Storage Resource Monitor Easy to set up, manage and monitor storage.

«We use it to monitor our storage for performance issues as well as plan ahead for expansion. It helps us find out if certain systems need to be moved to faster storage arrays.»

When it isn’t the network (but it’s always the network, isn’t it!?) then it’s the storage — but can you prove it??

«Building an infrastructure lineage, the same lineage shown in AppStack (available in the Orion platform) was awesome.»

Outer limits

The solar wind «blows a bubble» in the interstellar medium (the rarefied hydrogen and helium gas that permeates the galaxy). The point where the solar wind’s strength is no longer great enough to push back the interstellar medium is known as the heliopause, and is often considered to be the outer «border» of the solar system. The distance to the heliopause is not precisely known, and probably varies widely depending on the current velocity of the solar wind and the local density of the interstellar medium, but it is known to lie far outside the orbit of Pluto. Scientists hope to gain more perspective on the heliopause from data acquired through the Interstellar Boundary Explorer (IBEX) mission, launched in October 2008.

Network Performance Monitor is an industry favorite. Hands down.

My SolarWinds Network Performance Monitor Review

«SolarWinds is an all in one solution. We don’t need to install different servers for different packages. It provides easy installation, easy maintenance, easy monitoring by NOC and end-users of NOC. SolarWinds tools have more features than other tools. We have done POC for many and we are satisfied with SolarWinds performance.»

Network monitoring made easy using SolarWinds NPM

«SolarWinds Network Performance Monitor is being used effectively throughout our organization. It’s being used across different regions of the world with multiple instances setup. It’s able to manage and monitor our entire customer infrastructure proactively.»

SolarWinds NPM Review in a Nutshell

«Network devices are the backbone of any organization, so I can say with confidence, to make sure the network is up and functional 24*7, you can deploy SolarWinds which is easy to install and manage. It provides rich sets of metrics and alerts out of the box. The cool thing about this is it is very easy to install and manage.»

This is a great product. Has earned every penny we spent on it including our time.

«SolarWinds Network Performance Monitor (NPM) is a phenomenal value. Aside from all the troubleshooting work we do with it, historical utilization is used by management for capacity planning.»

An EKG for your servers

«It allows us to get alerts when anything is going wrong with a critical system so we can proactively address the issue before it impacts the business.»

Why I spend my day with SolarWinds

«We are using it strictly for our IT department to address issues before they arise. We are able to monitor multiple locations with different resources in every location. We are notified of issues beforehand so we can minimize any downtime. It’s amazing to have everything under a single console and get a snapshot view of the big picture of what’s going on.»

SolarWinds NPM: ease of use and single pane of glass

«It is very important to be able to bundle monitoring solutions for cloud and on-prem. In a hybrid environment, it makes for ease of use and a single pane of glass.»

SolarWinds Network Performance Monitor: THE leader in network monitoring

«This has absolutely helped with capacity planning. Here’s an example that I have personally been involved with for the past few years. We have a large credit and collections division(We’re in retail). Our credit and collections division has a peak time of year which is a little before Thanksgiving. Compared to this «peak» the rest of the year is relatively moderate in data and VOIP traffic. Every …»

Works great!

SolarWinds Network «Magnificent Performance» Monitor

«With SolarWinds, we are able to get in front of issues when devices fail or otherwise invisible network issues occur, before our clients even start to notice the problems. With over 500 outdoor locations statewide and thousands of devices to support, NPM allows us both a birds-eye view of network health and an on-the-ground, detailed perspective into individual devices, subnets, and segments of th…»

Credits

New World Encyclopedia writers and editors rewrote and completed the Wikipedia article
in accordance with New World Encyclopedia standards. This article abides by terms of the Creative Commons CC-by-sa 3.0 License (CC-by-sa), which may be used and disseminated with proper attribution. Credit is due under the terms of this license that can reference both the New World Encyclopedia contributors and the selfless volunteer contributors of the Wikimedia Foundation. To cite this article click here for a list of acceptable citing formats.The history of earlier contributions by wikipedians is accessible to researchers here:

Solar wind  history

The history of this article since it was imported to New World Encyclopedia:

History of «Solar wind»

Note: Some restrictions may apply to use of individual images which are separately licensed.

Notes

  1. ↑ Nicole Meyer-Vernet. 2007. Basics of the Solar Wind. (Cambridge, UK: Cambridge University Press. ISBN 0521814200).
  2. Kristian Birkeland, 1916. «Are the Solar Corpuscular Rays that penetrate the Earth’s Atmosphere Negative or Positive Rays?» Videnskapsselskapets Skrifter, I Mat—Naturv. Klasse No.1, Christiania.
  3. Solar Wind. 1919. Philosophical Magazine Series 6. 38(228):674.
  4. Ludwig Biermann, 1951. Kometenschweife und solare Korpuskularstrahlung. Zeitschrift für Astrophysik 29:274.
  5. Wilfried Schröder. 2008. Who First Discovered the Solar Wind? (Darmstadt, DE: Science Edition.)
  6. Christopher T. Russell, The Solar Wind and Magnetospheric Dynamics. Institute of Geophysics and Planetary Physics University of California, Los Angeles. Retrieved December 18, 2008.
  7. John Roach, 2003. Astrophysicist Recognized for Discovery of Solar Wind. National Geographic News. Retrieved December 18, 2008.
  8. Eugene Parker, 1958. Dynamics of the Interplanetary Gas and Magnetic Fields. The Astrophysical Journal 128:664. Retrieved December 18, 2008.
  9. Luna 1. NASA. Retrieved December 18, 2008.
  10. (Russian) 40th Anniversary of the Space Era in the Nuclear Physics Scientific Research Institute of the Moscow State University. kosmofizika.ru. Contains the graph showing particle detection by Luna 1 at various altitudes. Retrieved December 18, 2008. (in Russian)
  11. M. Neugebauer, and C.W. Snyder. 1962. Solar Plasma Experiment. Science 138:1095–1097.
  12. G.W. Pneuman, and R.A. Kopp. 1971. Gas-magnetic field interactions in the solar corona. Solar Physics 18:258.
  13. Ulysses — Science Overview. Jet Propulsion Laboratory. Retrieved December 18, 2008.
  14. ↑ Thérèse Encrenaz, J.P. Bibring, and M. Blanc. 2003. The Solar System. (Berlin, DE: Springer. ISBN 3540002413.)
  15. ↑ May-Britt Kallenrode. 2004. Space Physics: an introduction to plasmas and particles in the heliosphere and magnetospheres. (Berlin, DE: Springer. ISBN 3540206175.)
  16. Bradley W. Carroll, and Dale A. Ostlie. 1995. An Introduction to Modern Astrophysics, revised 2nd edition. (Reading, MA: Addison-Wesley Pub. ISBN 0201547309), 409.
  17. Carolus J. Schrijver and Zwaan Cornelis. 2000. Solar and stellar magnetic activity. (Cambridge, UK: Cambridge University Press. ISBN 0521739861).
  18. U. Feldman, E. Landi, and N.A. Schwadron. 2005. On the sources of fast and slow solar wind. Journal of Geophysical Research 110:A07109.1–A07109.12.
  19. Steve Suess, 1999. Overview and Current Knowledge of the Solar Wind and the Corona. NASA/Marshall Space Flight Center. Retrieved December 18, 2008.
  20. Kenneth R. Lang, 2000. The Sun from Space. (Berlin, DE: Springer. ISBN 3540669442.)
  21. Louise Harra, Ryan Milligan, and Bernhard Fleck. 2008. Hinode: source of the slow solar wind and superhot flares. ESA. Retrieved December 18, 2008.
  22. M. Bzowski, T. Mäkinen, E. Kyrölä, T. Summanen, E. Quémerais. 2003. Latitudinal structure and north-south asymmetry of the solar wind from Lyman-α remote sensing by SWAN. Astronomy & Astrophysics 408:1165–1177.
  23. Donald M. Hassler, Ingolf E. Dammasch, Philippe Lemaire, Pål Brekke, Werner Curdt, Helen E. Mason, Jean-Claude Vial, and Klaus Wilhelm. 1999. Solar Wind Outflow and the Chromospheric Magnetic Network. Science 283(5403):810–813.
  24. Eckart Marsch, and Chuanyi Tu. 2005. Solar Wind Origin in Coronal Funnels. ESA. Retrieved December 18, 2008.
  25. A.S. Endal, and S. Sofia. 1981. Rotation in solar-type stars. I — Evolutionary models for the spin-down of the sun. Astrophysical Journal, Part 1. 243:625–640. Retrieved December 18, 2008.
  26. H. Grünwaldt, et al. 1997. Venus tail ray observation near Earth. Geophysical Research Letters 24 (10):1163–1166.
  27. Solar wind ripping chunks off Mars. Cosmos Online. Retrieved December 18, 2008.

IT Asset Management and ITIL

ITIL and asset management is a partnership ensuring you’re planning and managing the relationships between your IT assets and service tickets or requests. The ITIL framework is a set of best practices providing the foundation for better IT service management (ITSM). Incorporating the best practices of ITIL gives you the ability to manage your IT assets in real time with a full understanding of how incidents, problems, changes, and releases impact your assets through an integrated service desk. IT asset management solutions coupled with ITIL best practices reduce business risk by alerting IT of potential software security problems and threats.

The goals of ITIL and asset management software include:

  • Acquiring appropriate IT assets while keeping costs low and benefits high
  • Optimizing the use of each IT asset
  • Disposing of IT assets when cost of maintaining them exceeds their benefits
  • Providing information necessary for regulatory compliance, license renewal, and contract renewal

ITIL asset management allows for more effective incident and problem management, which can improve resolution rates and reduce resolution times. It also makes it easier to move, add, or change configurations by connecting service information to specific assets. A good asset management strategy makes it easier to track software licenses and warranties so that your business can avoid unnecessary repair charges or fines for breaching service level agreements (SLAs). This helps keep ITSM costs down.

DATABASES

Optimize SQL database performance by monitoring and tuning at the query level.

Database Performance Analyzer allows you to:

  • Troubleshoot performance problems, both in real-time and historically
  • Analyze workload to identify inefficiencies
  • Blocking and deadlock analysis (both the blockee and the blocker)
  • SQL Server operational health and status–including Availability Groups and DTU metrics for Azure
  • Multi-dimensional (query, database users, applications, and more) wait-based analytics
  • SQL Server index recommendations
  • Index analysis and query plan parsing
  • Alerting and reporting

Supported Technologies: Microsoft SQL Server, Azure SQL Database, Azure Database, Microsoft SQL running on Azure VM, and Azure SQL Server Elastic Pools

Свойства и структура

Считается, что это показывает солнечный ветер от звезды LL Ориона, генерирующей ударную волну (яркая дуга).

Быстрый и медленный солнечный ветер

Наблюдается, что солнечный ветер существует в двух основных состояниях, называемых медленным солнечным ветром и быстрым солнечным ветром, хотя их различия простираются далеко за пределы их скоростей. В околоземном космическом пространстве медленный солнечный ветер имеет скорость300–500 км / с , температура ~ 100 МК и состав, близкий к короне . Напротив, быстрый солнечный ветер имеет типичную скорость750 км / с , температура 800 МК и почти соответствует составу фотосферы Солнца . Медленный солнечный ветер вдвое плотнее и более изменчив по своей природе, чем быстрый солнечный ветер.

Медленный солнечный ветер, по-видимому, исходит из области вокруг экваториального пояса Солнца, известной как «пояс стримеров», где корональные стримеры создаются магнитным потоком, открытым для гелиосферы, покрывающим замкнутые магнитные петли. Точные корональные структуры, участвующие в медленном формировании солнечного ветра, и способ, с помощью которого выделяется этот материал, все еще обсуждаются. Наблюдения Солнца в период с 1996 по 2001 год показали, что излучение медленного солнечного ветра происходило на широтах до 30–35 ° во время солнечного минимума (периода наименьшей солнечной активности), а затем расширялось к полюсам по мере приближения солнечного цикла к максимуму. В период солнечного максимума полюса также испускали медленный солнечный ветер.

Быстрый солнечный ветер возникает из корональных дыр , которые представляют собой воронкообразные области открытых силовых линий в магнитном поле Солнца . Такие открытые линии особенно распространены вокруг магнитных полюсов Солнца. Источником плазмы служат небольшие магнитные поля, создаваемые конвекционными ячейками в солнечной атмосфере. Эти поля удерживают плазму и переносят ее в узкие шейки корональных воронок, которые расположены всего в 20 000 км над фотосферой. Плазма выбрасывается в воронку при повторном соединении силовых линий магнитного поля.

Давление

Ветер оказывает давление на 1  AU обычно в диапазоне1–6 нПа ((1–6) × 10 −9  Н / м 2 ), хотя он легко может изменяться за пределами этого диапазона.

Давление набегающего является функцией скорости ветра и плотности. Формула

пзнак равномп⋅п⋅V2знак равно1,6726×10-6⋅п⋅V2{\ displaystyle P = m_ {p} \ cdot n \ cdot V ^ {2} = 1,6726 \ times 10 ^ {- 6} \ cdot n \ cdot V ^ {2}}

где m p — масса протона , давление P — в нПа (нанопаскалях), n — плотность в частицах / см 3, а V — скорость солнечного ветра в км / с.

Выброс корональной массы

CME извергается от Солнца Земли

И быстрый, и медленный солнечный ветер могут прерываться большими, быстро движущимися всплесками плазмы, называемыми выбросами корональной массы или CME. КВМ вызваны высвобождением магнитной энергии на Солнце. В популярных СМИ CME часто называют «солнечными бурями» или «космическими бурями». Иногда, но не всегда, они связаны с солнечными вспышками , которые являются еще одним проявлением выделения магнитной энергии на Солнце. КВМ вызывают ударные волны в тонкой плазме гелиосферы, запускающие электромагнитные волны и ускоряющие частицы (в основном протоны и электроны ), которые образуют потоки ионизирующего излучения , предшествующие КВМ.

Когда КВМ воздействует на магнитосферу Земли, он временно деформирует магнитное поле Земли , изменяя направление стрелок компаса и вызывая большие электрические токи заземления в самой Земле; это называется геомагнитной бурей, и это глобальное явление. Удары CME могут вызвать магнитное пересоединение в Земли (полуночная сторона магнитосферы); это запускает протоны и электроны вниз к атмосфере Земли, где они формируют полярное сияние .

CME — не единственная причина космической погоды . Известно, что разные пятна на Солнце вызывают несколько разную скорость и плотность ветра в зависимости от местных условий. По отдельности каждый из этих различных ветровых потоков мог бы образовывать спираль с немного другим углом, при этом быстро движущиеся потоки выходили более прямо, а медленные потоки больше оборачивались вокруг Солнца. Быстро движущиеся потоки, как правило, догоняют более медленные потоки, которые берут начало к западу от них на Солнце, образуя турбулентные, вращающиеся в одном направлении области взаимодействия, которые вызывают волновые движения и ускоренные частицы, и которые воздействуют на магнитосферу Земли так же, как, но более мягко, чем , CME.

OFFICE 365

Server & Application Monitor and Backup for Office 365 allow you to:

  • Track Microsoft Office 365 user/shared mailbox growth
  • Monitor and report on the status and availability of your Office 365 portal, subscription,
    and security statistics
  • Check consumed license units based on part number or number of active subscriptions
    in your environment
  • Monitor your on-prem Exchange in the same console as Office 365
  • Discover your top senders and receivers of emails
  • Help protect against data loss by backing up
  • Exchange email, calendar items, and contacts on demand or every two hours

Supported Technologies: Exchange

WINDOWS SERVERS

Help ensure your Microsoft operating system is working as expected and is not the source of performance problems.

Server & Application Monitor monitoring for Microsoft allows you to:

  • Detect high CPU utilization, insufficient physical and virtual memory, and available disk capacity in storage volumes
  • Analyze performance metrics, such as page file usage, processor time, pages/sec., disk queue, length, and more
  • Monitor Windows network load balancing, print service, remote desktop service, FTP service, and Windows update service
  • Turn off any rogue or expensive processes remotely
  • Reboot server when it’s needed
  • Monitor the number of failed login attempts with an incorrect username or password
  • Collect hardware and software information to build a complete IT asset inventory
  • Discover any server hardware failure

Supported Technologies: Microsoft Windows Server

我们的客户在 TrustRadius 中评价如何

My SolarWinds Network Performance Monitor Review

«SolarWinds is an all in one solution. We don’t need to install different servers for different packages. It provides easy installation, easy maintenance, easy monitoring by NOC and end-users of NOC. SolarWinds tools have more features than other tools. We have done POC for many and we are satisfied with SolarWinds performance.»

Network monitoring made easy using SolarWinds NPM

«SolarWinds Network Performance Monitor is being used effectively throughout our organization. It’s being used across different regions of the world with multiple instances setup. It’s able to manage and monitor our entire customer infrastructure proactively.»

SolarWinds NPM Review in a Nutshell

«Network devices are the backbone of any organization, so I can say with confidence, to make sure the network is up and functional 24*7, you can deploy SolarWinds which is easy to install and manage. It provides rich sets of metrics and alerts out of the box. The cool thing about this is it is very easy to install and manage.»

An excellent monitoring and alerting tool for applications and servers

«It really is a one-stop-shop for monitoring and pulls all the metrics and alerts into one single pane of glass, making the life of the support teams a lot easier.»

SolarWinds Server & Application Monitor is a Fantastic Product

«I would 100% recommend SolarWinds Server & Application Monitor to a colleague. It’s a cheaper, versatile, easy to use product.»

SolarWinds Server & Application Monitor Review

«We selected SolarWinds Server & Application Monitor over AppDynamics because SolarWinds product suited our needs better. We needed better infrastructure monitoring and internal application monitoring brought from other vendors.»

Realize the Single-Pane-Of-Glass

«We have benefited immensely from SolarWinds Network Configuration Manager (NCM) by using automated network configuration tools to automate simple network changes across the board»

Great tool for Network Manager — SolarWinds NCM

«This is the module I definitely will recommend»

A good, easy to use and understand Network Configuration Manager!

«It has saved time, which saves money.»

Real Network Bandwidth Monitor

«NetFlow Traffic Analyzer is being used to analyse Network traffic and who is consuming the bandwidth for better planning and ensure security.»

SolarWinds NetFlow Traffic Analyzer Review

«SolarWinds NetFlow Traffic Analyzer is being used for the IT department to analyze traffic engineering for issues/troubleshooting or capacity planning. Personally, I think is one of the best tools to get Netflow information in real-time to analyze.»

So you got traffic but don’t want to just keep guessing why, check out NTA and NetFlow instead of shouting at the sky

«So you got traffic but don’t want to just keep guessing why, check out NTA and NetFlow instead of shouting at the sky»

IPAM is worth a shot

«SolarWinds has always had great support and is generally pretty fast in resolving any issues we have.»

SolarWinds IPAM is one stop Solution for IP Address Management

«SolarWinds has really made their orion and non-orion platform products so simple that any newbie can give a try and make the best use out of it.»

SolarWinds IPAM — Manage your IP addresses quickly and easily!

«It is an excellent monitoring tool and allows us to troubleshoot complex issues quickly, and in one managed interface.»