'Device is not ready' error message appears when trying to use the search function. (4237495)

'Device is not ready' error message appears when trying to use the search function.

When users try to use the search function in the Archive Manager WebUI, a "Device is not ready" error message is returned.

Environment Details:
Archive Manager 4.7.1 Windows 2008 R2 Virtual 4 vCPUs and 16Gb RAM.
SQL 2008 Windows 2008 R2 Virtual 4 vCPUs and 16Gb RAM.
Web Server Windows 2008 R2 Virtual 4vCPUs and 4Gb RAM.
Exchange Server Exchange 2010 SP1 RU5 Windows 2008 R2 Virtual 4 vCPUs and 16Gb RAM.
All Exchange servers are virtual with NetApp disks attached via SnapDrive.
Moderate to high usage for 1000 users.

There is a possibility that the hard drives from Archive Manager and SQL Servers were very busy at that point in time and/or Archive Manager and SQL Servers are under spec’d for the amount of work that needed to be carried out.
Rebooting the Archive Manager in a quiet time to refresh connectivity and any memory leaks does help, but not in this instance.

Please check the Archive Manager Installation Guide for Exchange on the following link under Chapter 3 - Archive Manager hardware recommendations, to make sure that your environment is adequate for using with Archive Manager:

https://support.quest.com/archive-manager/technical-documents

The Archive Manager, SQL Server, Dedicated IIS Server in this instance were OK.

Archive Manager 4.7.x is an old and unsupported version.
All the version support statuses can be viewed on the following link under the Support & Policies PLC sub tab:

https://support.quest.com/archive-manager

In this instance the issue was resolved by upgrading the Archive Manager to the 4.8 version and rebooting too.
Upgrade information can be found in the following upgrade video and step-by-step guide:

https://support.quest.com/kb/SOL87234
https://support.quest.com/archive-manager/kb/155405

Note: Before upgrading Archive Manager, please make sure that a backup of Archive Manager, SQL DB, Email & Attachment Stores and Exchange Server has been performed (regularly too).