[linux-lvm] Re: Not allowed to fill filesystem to 100%???

[Andrew Burgess]

>> We have created some 300 GB lvm2 (RH 4.0 AS)  filesystems for our
>> PostgreSQL databases.  However, we tried to copy one of the larger
>> filesystems over to the new lvm filesystem and the copy abended due to
>> being.  The system was reporting that the file system was 100% full
>> with 0 blocks free.  However, a df reported almost 16GB free.
>> 
>If it's an ext2/3 filesystem, the default reserved space is 5%.  Check
>the man pages for mke2fs and tune2fs.

Also, you might have run out of inodes, try "df -i", though that only
happens with lots of little files and databases tend to be the opposite.

HTH