HostMonitor

HostMonitor is a award-winning system management tool that continuously monitors servers availability and performance.
It can monitor any TCP service, ping a host, retrieve an URL, check the available disk space, check integrity of your files and web site, test your SQL server, and much more.
It checks network servers at regular intervals and takes a pre-defined actions if a device does not respond. It can provide a visual and sound warning, send an E-mail message to a mailbox, pager or mobile phone, execute external program, etc.
HostMonitor can generate test result log files and reports. HostMonitor provides different log file detail levels and log file formats and can be configured to suit your needs.
Also the program includes a Log Analyzer which can illustrate separate information for each tested host, collect statistical information and show graphs of all request times for specific time periods for all or individual servers.
There are several registrations available: $99, $150, $190, $250