Encryption hints

Find useful hints for working with file encryption.

Testing whether a file is encrypted by IBM Storage Scale

To test whether a file is encrypted by IBM Storage Scale, do one of the following actions:

In a policy, use the following condition:
```
XATTR('gpfs.Encryption') IS NOT NULL
```
For more information, see Extended attribute functions.

On the command line, issue the following command:

mmlsattr -L FileName

The command displays output as shown in the following example. The line of the output that begins with the label Encrypted indicates whether the file is encrypted:

#mmlsattr -L textReport
name:                 textReport
metadata replication: 1 max 2
data replication:     1 max 2
immutable:            no
appendOnly:           no
flags:
storage pool name:    system
fileset name:         root
snapshot name:
creation time:        Tue Jun 12 15:40:30 2018
Misc attributes:      ARCHIVE
Encrypted:            yes

For more information, see mmlsattr command.