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This issue occurs after a long period of supervisor uptime. It will become apparent if a standby supervisor is present and it is reset (ISSU, ISSD, supervisor switchover or standby reset) since it will never come online. show system internal flash indicates that the /nxos/tmp is 100% - `show system internal flash` Mount-on 1K-blocks Used Available Use% Filesystem / 204800 47756 157044 24 /dev/root /proc 0 0 0 0 proc /isan 512000 231592 280408 46 none /var 51200 492 50708 1 none /etc 5120 936 4184 19 none /nxos/tmp 20480 20480 0 100 none /var/log 51200 6212 44988 13 none /var/home 5120 48 5072 1 none
The space is consumed by a file called fm_debug.log.vdc_1*. This can be identified as follows: switch# show system internal dir /nxos/tmp | include fm_debug fm_debug.log.vdc_1.2698 20922368 The following type of syslog messages may be logged: %SYSMGR-2-TMP_DIR_FULL: System temporary directory usage is unexpectedly high at 97%. This is Cisco bug CSCtr15670
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