By default, encrypted volumes can not start automatically when the system boots up because it requires the user to provide an access passphrase. However, you can automate the startup of encrypted volumes by storing the required passphrases in a file. You must save the file in the /etc/vx/encryption/
directory.
The passphrase file must contain one line for each encrypted volume; each line contains the following information in three columns of text:
At the time of system startup, VxVM queries the passphrase file for encrypted volumes. If the volume is listed in the file, it uses the corresponding passphrase for the volume instead of prompting the user for a manual entry.
A sample passphrase file is as follows:
datadg1 datavol1 sgZ5ltvY72J datadg1 datavol2 skghj458hcdskj