Operating system overview is a detailed real-time snapshot of an OS server showing performance and other critical information for a single OS.

Just like Enterprise view Operating system overview view displays alerts about your OS host. There are some differences however. The Enterprise view shows you all alerts that are triggered for the OS host, the Overview does not. The Operating system overview shows only the alerts that are relevant in the context of a single OS server.

Other than that the alerts function in much the same way as on Enterprise view. You receive an alert notification when a new alert is triggered that draws your attention to the component. You can then click on the alert icon next to the component to see the alert or alert list for that component. You can also disable and configure alerts in the same way you do it on Enterprise view.

Sessions and network.  The upper part of OS overview shows information about user sessions and network statistics. It shows the time it takes to send a simple request to the server and get back the results (response time). High response times may indicate that server is too busy or the network is experiencing a problem.

Info box.  Info box displays important information about the OS host: operating system type and release, server name, uptime, current time, users, and runqueue length.

CPU box.  CPU box shows all available CPUs and their load, including system and user-mode CPU usage.

Memory and load charts.  Other vital OS host performance metrics, including available and free memory, memory used for file cache, paging and swapping, context switches and load average are displayed in the memory and load charts.

Processes.  The total number of processes, running, sleeping and zombies (zombie process or defunct process is a process that has completed execution but still has an entry in the process table, this entry being still needed to allow the process that started the zombie process to read its exit status) are show below memory statistics.

Disks.  The disks show used space on the disk drives and the swap partition/files. The quantity gauge below the cylinder shows the actual amount of free and total space.

Processes view shows a list of operating system processes currently running. You can set the view to automatically refresh every N seconds or refresh it manually. The Processes view can be filtered and sorted, the columns can be moved and resized with a mouse. To hide or show columns in the view right-click on a column and check or uncheck a column in the list. The hierarchy of processes (parent-child relationship) can be shown with Show hierarchy toolbar checkbox.

Killing a process.  To kill a process select the process in the list and press Kill Process toolbar button or select Kill Process in the pop-up menu.

Operating system storage view shows the drives (mounts) and space usage statistics.

You can set the view to automatically refresh every N seconds or refresh it manually. The Storage view can be sorted by clicking on a column caption, the columns can be moved and resized with a mouse. To hide or show columns in Storage view right-click on a column and check or uncheck a column in the list.

The breakdown of the total, free and used space on all volumes (mounts) is displayed below the table

Operating system network view shows active TCP connections, ports on which the computer is listening and ethernet statistics

You can set the view to automatically refresh every N seconds or refresh it manually. The Network view can be sorted by clicking on a column caption, the columns can be moved and resized with a mouse. To hide or show columns in Storage view right-click on a column and check or uncheck a column in the list.

	Warning
	Network, sessions and shell views are available on UNIX only

Operating system sessions view shows all currently connected operating system users and the details of their connection such as login time, idle time and IP address.

You can set the view to automatically refresh every N seconds or refresh it manually. The Network view can be sorted by clicking on a column caption, the columns can be moved and resized with a mouse. To hide or show columns in Storage view right-click on a column and check or uncheck a column in the list.

Shell view is a special type of view in that it allows you to login to you operating system host using your login and password you entered when adding an Enterprise view item and execute any command that your user account is configured to access.

	Note
	The connection to your operating system host is established using secure SSH protocol

Press Login to login to the operating system shell. You can then execute any command your user account is configured to access. For example, you can type: vmstat to analyze your operating system performance.