Question & Answer
Question
Intermittently, 'df -i' against GPFS (General Parallel File System ) wrongly shows full on a GPFS file system.
For example, linux OS command 'df -i' shows the file system inode is full 100%.
$ df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
...
DATA0001 615168 613888 1280 100% /DATA0001
...
Running GPFS command 'mmdf', it shows differently showing there are free inodes.
$ /usr/lpp/mmfs/bin/mmdf DATA0001
disk disk size failure holds holds free KB free KB
name in KB group metadata data in full blocks in fragments
--------------- ------------- -------- -------- ----- -------------------- -------------------
..
============= ==================== ===================
(total) 629145600 625900544 ( 99%) 7360 ( 0%)
Inode Information
-----------------
Number of used inodes: 4162
Number of free inodes: 611006
Number of allocated inodes: 615168
Maximum number of inodes: 615168
```
And running 'df -i' again, it shows same as 'mmdf' usage while this showed 100% before running mmdf.
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Document Information
Modified date:
30 April 2025
UID
ibm16219258