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AP free file system space less than limit 90.0 percent

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TitleAP free file system space less than limit 90.0 percent
Symptoms
Controller message log showing APs free file system space less than limit 90.0%.
Mar 31 16:00:01 2019: AP-b : %DIAG-4-FREE_RAM_DISK: Free system: file system space, 2.4% is less than limit 90.0%
Mar 31 15:59:53 2019: AP-a : %DIAG-4-FREE_RAM_DISK: Free system: file system space, 3.5% is less than limit 90.0%
Mar 31 15:59:46 2019: AP-a : %DIAG-4-FREE_RAM_DISK: Free system: file system space, 0.8% is less than limit 90.0%
Mar 31 15:59:16 2019: AP-a : %DIAG-4-FREE_RAM_DISK: Free system: file system space, 2.8% is less than limit 90.0%

 
Environment
  • Extreme Wireless
  • Extreme Wireless WiNG
  • WiNG version 5.X
  • AP4600
Cause
/dev/ram partition is full.
Filesystem                Size      Used Available Use% Mounted on
/dev/root                41.5M     35.2M      6.3M  85% /
/dev/ram                  5.0M      4.9M     60.0K  99% /var
/dev/ram                  1.0M         0      1.0M   0% /var/radius
/dev/ram                  5.0M      4.9M     60.0K  99% /tmp
/dev/ram                  5.0M      4.9M     60.0K  99% /dev
none                    512.0K         0    512.0K   0% /dev/shm
none                    512.0K         0    512.0K   0% /dev/shm
/dev/mtdblock8            7.0M    580.0K      6.4M   8% /var2
/dev/mtdblock9           10.0M    552.0K      9.5M   5% /etc2
/dev/mtdblock10          28.0M      1.0M     27.0M   4% /flash
/dev/ram                  2.0M      1.6M    420.0K  79% /var/log
/dev/ram                  2.0M      1.6M    420.0K  79% /flash/log
/dev/ram                  1.0M         0      1.0M   0% /flash/log/radius
/dev/mtdblock10          28.0M      1.0M     27.0M   4% /usr/hotspot/htdocs
/dev/root                41.5M     35.2M      6.3M  85% /usr/hotspot/htdocs/cgi-bin
/dev/ram                  5.0M      4.9M     60.0K  99% /usr/hotspot/var/etc/tzone
/dev/root                41.5M     35.2M      6.3M  85% /usr/hotspot/usr/share/zoneinfo
/dev/mtdblock7           41.5M     39.8M      1.7M  96% /mnt/other

 
Resolution
Check on the content of /dev/ram partition and delete unused files, require escalate to engineering to verify as it require root linux level access.
Additional notes
AP4600 with firmware v5.5.0 are long obsolete and EOL, engineering no longer support these.

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