If your Identity Server hard drive fails, you must reinstall Identity Server (see Installing Identity Server) and leave Identity Server configuration intact in Administration Console. To preserve the existing keystores, perform the following steps before installing Identity Server on the new hard drive:
On the Home page, click Identity Servers > Server Actions > Stop the Server.
Wait for its health to turn red, then click Server Actions > Remove from this Cluster.
Click Unassigned Servers.
Select Identity Server and click the delete icon.
Reinstall Identity Server. (See Section 3.0, Installing Identity Server.)
Click Unassigned Servers.
Click Cluster Actions > Assign a Server.
Select the Identity Server and click Finish.