Using Host Diagnostics and the Array OS GUI

Make sure you have performed the following tasks:

Installed Host Diagnostics when you installed the toolkit.
Specified a TCP/IP port during the toolkit installation that Host Diagnostics can use to communicate with the array.
Registered Host Diagnostics with a group on the array. You can do this during the toolkit installation or later using the Host Diagnostics Registration Tool.
Enabled DNA on the array. Refer refer to the GUI Administration Guide or the CLI Administration Guide for information about using DNA. These documents are available on the Documentation Portal on HPE InfoSight.
Logged on with a user account that has Power User or above privileges.

Host Diagnostics runs from the array OS GUI. The Host Diagnostics GUI page lists all the Windows hosts that have been registered with the array. If you encounter an issue with your array, you can use the Collect Logs button on this page to bundle the log files for that host and automatically transfer them to an HPE InfoSight shared location. Support can download the log bundle and use it to resolve the array issue.

When you run Host Diagnostics, it refreshes the page display every 15 seconds.

Log on to the array GUI.
Select Monitor → Hosts → Host Diagnostics. This takes you to the Host Diagnostics page.
Select the host for which you want to collect log files and click the Collect Logs button.
You can select up to ten hosts at one time. Host Diagnostics can run log collections for four hosts concurrently and have six hosts in the queue.

Host Diagnostics displays messages to let you know the status of the log collection operation. For example, it displays a message letting you know that the log collection task has been queued. You can monitor the log collection tast status from the task details pane.
When the log collection completes successfully, you can select that host and view its details page. Host Diagnostics provides the following Collection Details:
- Collection Time provides the start time for the collection operation.
- Collection Status provides information about whether the collection operation has finished.
- DNA Time is the timestamp on the log bundle. You must provide this information to Support. The Support engineer uses the DNA Time to locate the log bundle on the InfoSight shared drive and download it. The DNA Time uses the format year-month-day hour-minutes-seconds array-timezone. For example, if the array is located in the Eastern Daylight Timezone, you might see the following value for DNA Time:
```
2020-9-25 21:53:15 0000 EDT
```
Send the DNA Time to Support.