Listing the storage pool of a file

To display the assigned storage pool and the name of the fileset that includes the file, issue the mmlsattr -L command.

For example, this command:
mmlsattr -L myfile
produces output similar to this:
file name:            myfile
metadata replication: 2 max 2
data replication:     1 max 2
immutable:            no
appendOnly:           no
flags:
storage pool name:    sp1
fileset name:         root
snapshot name:
creation Time:        Wed Feb 22 15:16:29 2012
Misc attributes:      ARCHIVE

File myfile is assigned to the storage pool named sp1 and is part of the root fileset.