Cisco IOS-XR Minimum System Requirements for Upgrade
For upgrading IOS-XR devices like ASR9000 routers, e.g. from 5.x to 6.x , the minimum memory requirements for ver. 6.2.3 are:
-minimum 2 GB compact flash on RSPs or Route Switch Processors
-minimum 6 GB memory on the RSP-440 and RP (ASR99xx)
-minimum 4 GB memory on LCs or Line Cards
Command that can be used to find the physical memory of each modules:
show watchdog memory-state location all | include "node|Physical Memory:"
Command that can be used to find the space of compact disk in active and Standby RSPs:
show filesystem disk0: location 0/RSP0/CPU0
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