V Sentry Overview

Download: For more information about V Sentry pricing or downloading a trial, see the V Sentry product page.

V Sentry provides a unique view of resource utilization, allowing you to analyze network, CPU, memory, and storage performance for VMware hosts and their virtual machines. The V Sentry Dashboard displays a breakdown of how each server resource is being used and determines whether a CPU is overcommitted.

When you're experiencing performance issues, use the Windows performance Dashboard to view real-time performance metrics, or switch to History mode to access your performance data. For more information about using the V Sentry Dashboard, see the Disk Space and Disk Activity topics. 

Installing V Sentry

In order to monitor a VMware host, monitor the associated vCenter. Right-click VMware in the Navigator pane, and then select Add vCenter in the context menu.

Add the appropriate parameters for monitoring the vCenter, and select OK to perform a connection test. Once the test passes, the vCenter is registered and starts collecting configuration and performance data. 

Note:  If you use SSPI authentication, you and the SQL Sentry monitoring service account needs to have at least read-only access to the vCenter server. If you don't already have access, the VMware administrator at your company can grant you access.

NameDescription
Display NameAlias for the vCenter in the SentryOne client.
AddressThe vCenter name or IP address.  
Account CredentialsCredentials used for pulling data from the vCenter. Select Use Windows session authentication to use the SentryOne account.
SiteSpecifies which monitoring service(s) are used for data collection. 

Add any associated VMware hosts by right-clicking the appropriate site where you want the VMware host to be monitored, select Add, and then select VMware Host. Provide the server name for the VMware host > Connect. For more information about VMware hosts, see the Virtualization Node topic.
SentryOne Add VMware Host

Virtualization Support

The left side of the VMware dashboard displays the resource utilization of the host, and the right side of the dashboard allows you to see which guests are making use of the host resources. The right side also provides you with the ability to identify who is using too many resources.

SentryOne V Sentry Dashboard

The Disk Activity and Disk Space tabs show the activity and size of the VMware files. For more information about these tabs, see the Disk Activity and Disk Space topics. 

Jump To

You can right-click on a spike in the VMware dashboard, and then select Jump To. This opens the guest dashboard for that period, allowing you to identify what might be causing the spike. You can also jump from a virtualized guest to the host where you can see if other guests on that host might be causing resource restrictions.

SentryOne Jump To

Sample Mode

Sample Mode allows you to see more detail on that point in time where the problem occurs. You can see if the problem was isolated to a single CPU in the CPU graph, and you can see more detail on how memory is being used.