This article provides information to correct a problem of failing archive jobs when using a Seagate FreeAgent GoFlex external USB drive.
Archives to a Seagate FreeAgent GoFlex drive can fail requiring a manual re-scan and mount to be necessary to run Archive jobs. This is caused by a default sleep function which requires the device to be re-scanned and mounted in order to use the Archive functions.
The sleep function can be disabled using Seagate's own utility which can be downloaded HERE.
Disable Sleep Settings
Once the Seagate software is installed...
Open the Dashboard application
Click Drive Settings in the Drives panel
When the Drive Settings window opens, click Power Settings.
Select an interval from the dropdown menu (e.g. Never).
Click Save to save the Drive Sleep Interval setting.
The Power Settings window confirms that the power setting for your drive has been changed. Click Close to return to the Seagate Dashboard window.
For more information see the related Seagate Knowledgebase articles: