> # Analyzing SAN Health

> The SAN Health Advisor tool is a utility that used to monitor the performance and collect the statistics. You can perform the following tasks with this tool:

> - Run Performance Monitor to collect I/O statistics
> - Collect fabric inventory (switches and other devices)
> - Create a graphical layout of fabric topology
> - Create reports of error conditions and statistical data

> You can install this tool at any SAN environment to collect I/O statistics for the specified time (usually 24 hours), generate health reports and automatically send reports to the designated system administrator for review at regular intervals.

> When you start SAN Health Advisor tool, it runs in wizard mode, and prompts for inputs such as seed switch credentials, IP address of the server to which the data to be sent and all the necessary information for the software setup. As soon as the fabric is discovered, the tool starts capturing performance data, I/O statistics and error conditions.

> The reports generated from the collection is stored in the $INSTALLDIR/dcm/fm/reports directory. These reports are automatically sent to the designated SAN administrator for review. In a situation where the tool fails to collect the data, it generates a report with an error message or exception. After sending the reports the tool automatically uninstalls itself and terminates all the processes that it established on the host machine.

> The report that SAN Health Advisor tool generates will have the following details:

> - Events
> - System messages
> - Analysis of connectivity
> - Zone discrepancy
> - System configuration
> - Interface status
> - Domain information
> - Security settings

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