[gpfsug-discuss] Calculate evicted space with a policy

Dorigo Alvise (PSI) alvise.dorigo at psi.ch
Tue Mar 19 09:25:37 GMT 2019


Dear users,
is there a way (through a policy) to list the files (and their size) that are actually completely evicted by AFM from the cache filesystem ?

I used a policy with the clause KB_ALLOCATED=0, but it is clearly not precise, because it also includes files that are not evicted, but are so small that they fit into their inodes (I'm assuming that GPFS inode structure has this feature similar to some regular filesystems, like ext4... otherwise I could not explain some non empty file with 0 allocated KB that have been fetched, i.e. non-evicted).

Many thanks,

   Alvise
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