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System Architecture using .net toattach gs1 datamatrix barcode for web,windows application Visual Studio Development Language Zenoss blends innovat Data Matrix for .NET ive development with several open-source software projects to create a robust network and systems management solution. Before we jump into installation, we can pause for a moment to take a peek under the hood and see what makes Zenoss work.

Reviewing the system architecture now provides us with an understanding that can help troubleshoot problems that may arise later. Zenoss provides everything that we need to discover, collect, store, and manage our IT resources; and when we talk about the system architecture, it helps to conceptually segregate Zenoss into three layers: User Data Collection. The User Layer (refer to the following screenshot) allows us to connect to the Zenoss from any computer running Mozilla Firefox or Microsoft Internet Explorer. From the User Layer, we manage the device data that Zenoss collects from our network. Although Zenoss automatically handles many collection and monitoring tasks, we can manually control the collection components from the Zenoss web interface.

. System Architecture The most notable open -source software components that integrate with Zenoss include Zope, Python, MySQL, RRDtool, and Twisted. In this , we will examine each layer and its core components..

User Layer Zenoss is flexible en ough to work from a command line, but most of our work will take place via an AJAX enabled interface, which is based on the Zope application server framework. We limit our command line work to installation, troubleshooting, and general curiosity. The following screenshot shows the view of the Zenoss dashboard.

. Zope is a popular, ex VS .NET data matrix barcodes tensible application server written in Python. It features a built-in web server, transactional object database, and HTML templates.

Python has a reputation as an easy-to-use object-oriented programming language. Not only is Python the basis for Zope, it s also the basis for Zenoss Core..

[ 16 ]. 2 . Through the web inter face, we provide input with both the data and collection layers to accomplish tasks related to the following areas: Navigation and organization Device management Availability and performance monitors System reports Event Management Settings and Administration. Data Layer As we might expect, d atabases are the heart of the data layer, and Zenoss stores data in three types of databases. The Collection layer funnels device information to ZenHub, which in turns stores the data in the appropriate place. (Refer to the following screenshot).

. Events are stored in .net vs 2010 datamatrix 2d barcode a MySQL database. Zenoss generates Events when an established threshold is crossed, such as a server outage or high memory usage.

Events trigger actions, such as email or pager alerts. MySQL is a popular open-source database commonly used by web applications as part of the LAMP (Linux, Apache, MySQL, and PHP) stack. It is often praised in the industry for being fast and reliable.

. [ 17 ]. System Architecture Time series performan ce gets stored in a Round Robin Database (RRD). A round robin database differs from a linear database, such as MySQL, in that it s circular which means the size does not increase over time. Data is stored in a first in, first out basis.

RRDtool provides Zenoss with the ability to log and graph performance data. The third database deployed by Zenoss is a Configuration Management Database (CMDB). The CMDB is an Information Technology Infrastructure Library (ITIL) standard for managing the configuration, relationship, and change history of the IT environment, which creates a detailed model of the network.

Zenoss uses a Zope object database to house the CMDB.. Collection Layer The collection layer includes several daemons that gather information about devices, performance, and Events (refer to the following screen capture). They feed information to ZenHub to distribute to the appropriate database. As we ll find out, the Zenoss daemons are easy to identify they all start with the prefix "zen.

". We access the daemons datamatrix 2d barcode for .NET by selecting Settings > Daemons from the Zenoss dashboard. As the following screen capture illustrates, the dashboard provides us with the complete view of the Zenoss Daemons that includes the process ID and up/down State.

Green is up; red is down. Also from the interface, we can view the log, edit the Configuration, and start and Stop each daemon..

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