## `linktest`(1M) Options

`linktest`, delivered with the Storage Automated Diagnostic Environment software, verifies the functionality of passive Fibre Channel components in a SAN or DAS environment. `linktest` provides failing FRU isolation for devices that have external loopback tests.

Note -

`linktest` is available only from the Storage Automated Diagnostic Environment GUI, Test from Topology view.
`
linktest` is not available through the command line interface (CLI) or from the Storage Automated Diagnostic Environment GUI, Test from List view.

`linktest`(1M) Options table describes the linktest Test Options dialog box.

Item | Description
--- | ---
Pattern Type | Choices of pattern to run include user | critical | all: critical is the I/O pattern causing device failure; all is a complete list of patterns; critical is the default pattern.
User Pattern | User-specified pattern in hexadecimal format. For example, pattern=0x4a4a4a4a.
Verbose | Runs the test in Verbose mode and displays messages with more detailed information about the testing process. The default is off.
Email | Enter email addresses to where the test results need to be sent, for example, email=email@address.com. An entry in Send Results to Email from the Default Options screen sends the results of all tests. To send results to email recipients on an individual test, access that test's Default Option screen.

### CLI Help Man Page

`linktest(1M)`