SCO Unix - Disk Space
I am using SCO Unix 3.12 and Informix database. When we tried to use "du -a" command to check disk space, it showed:
Total = 388440 blocks
But when I used command "df -f", it showed that I have used up 691920 blocks .
I don't know why? One more thing, before it happened, I try to export database from Informix to text file, but it's too large, so I stopped the process. After that, the problem has occurred.
that is the difference between disk usage (du) and free blocks displayer (df)
if a file makes use of 2KB of 1 MB block
du will display that the file had used only 2KB
but df would display that 1 MB had been used as its displaying only the free blocks available,
even if 1 byte is used in 1MB free block, the free block is no more a free block and its used.
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