Q-Logic 6140 User Manual

3 – Planning
Recovery

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It is prudent to have a process in place to recover from a possible router failure. 
Consider the following when developing a recovery process for the router:

„

Save all firmware image files (updates) in a safe, well-known place, because 
you may:

„

Want to revert to a previous firmware version

„

Need the firmware image when replacing a router

„

Need the firmware image when adding a router to your site

„

Save the router’s configuration (as a new file) after every configuration 
change, because you may:

„

Want to revert to a previous configuration

„

Need to configure a replacement router

„

Save the router’s LUN mappings (as a new file) after every mapping change, 
because you may:

„

Want to revert to a previous LUN mapping

„

Need to LUN-map a replacement router

„

Want to duplicate the LUN mapping on a second router (for 
redundancy)

You can configure your router to suit the demands of your environment using a 
variety of router services. Familiarize yourself with the following router services 
and determine which ones you need:

„

Telnet – Enables you to manage the router over a telnet connection.

„

Router management – Provides for out-of-band management of the router 
with the SANsurfer Router Manager.

„

Simple network management protocol (SNMP) – Enables you to monitor 
the router using third-party applications that use SNMP. 

„

Network time protocol (NTP) – Enables you to synchronize the router and 
the workstation dates and times with an NTP server. NTP is disabled (not 
configured) by default.

„

File transfer protocol (FTP) – Enables you to transfer files rapidly between 
the workstation and router using FTP.