I am working on a unix server and I guess during some time in past the file system had been full. However, I need some solid data to prove it. Will there be any OS logs or something of that sort to confirm my assumption?
It's an AIX system.
On AIX, you will get entries in the standard error log if a filesystem operation fails due to a filesystem being full. You can view that error log with the
You will see something like this,
IDENTIFIER TIMESTAMP T C RESOURCE_NAME DESCRIPTION xxxxxxxx xxxxxxxxx I O SYSJ2 UNABLE TO ALLOCATE SPACE IN FILE SYSTEM
I'll agree with EightBitTony with his answer. For a detailed description about which exact filesystem was full, you could go ahead with the following commands:
errpt | grep -i "unable to allocate to allocate space in filesystem"
errpt -aj identifier-code
df -gt mount-point
You could also pinpoint the exact date and time for it in the first command itself where you will know it from the timestamp given.