Symptom

ISSU operation Failed due to "ISSU is disabled for this SDR" but ISSU Enabled on Admin-Plane SDR

Conditions

If node is reloaded with "sdr default-sdr issu disable" config present, after node is up and config is removed, ISSU might still fail that ISSU_SUPPORT value is being cached. sysadmin-vm:0_RSP0# show running-config sdr Mon Jul 13 15:29:47.737 UTC+00:00 sdr default-sdr location all ! ! sysadmin-vm:0_RSP0# RP/0/RSP1/CPU0:ROA#show issu INSTALL Operation ID : Operation 89 Started at Mon Jul 13 08:02:50 2020 ISSU Progress : 0.0% Total ISSU Time : - ISSU Type : IMAGE Current Status : ISSU operation Failed in Precheck Additional Info : ISSU is disabled for this SDR by Admin-plane configuration Setup Information : Single Chassis ISSU Ready/Not Ready : 0 / 0 Node ISSU readiness per rack per slot Key: Ready - 'Y', Not ready - 'N', Primary node - '*', Complete - '-'

Workaround

Remove the config "sdr defaul-sdr issu disable" and reload the node and then perform ISSU.

Further Problem Description