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3 – Planning
Recovery
3-8 FI0154601-00 C
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Recovery
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)
Services
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.