Encrypted Volume and File System v1.1 Administrator's Guide

4 Configuring an EVFS Volume
This chapter describes how to configure an EVFS Volume after preparing EVFS for configuration.
This chapter addresses the following topics:
• “Configuration Overview” (page 49)
• “Option 1: Creating a New EVFS Volume” (page 50)
• “Option 2: Converting a Volume with Existing Data to an EVFS Volume (Inline Encryption)”
(page 65)
• “Examples” (page 75)
Configuration Overview
There are two procedures to configure an EVFS Volume:
• Option 1: Creating a new EVFS volume
This procedure creates a new EVFS volume. Use this option to create an EVFS volume on
an unused LVM, VxVM or physical volume. After you have created the EVFS volume, you
can migrate existing data to the new EVFS volume.
CAUTION: You cannot create an LVM or VxVM volume above an EVFS volume.
You can create an EVFS volume on an existing LVM, VxVM, or physical volume, but any
existing data on the volume is rendered unusable.
• Option 2: Converting a volume with existing data into an EVFS volume (Inline Encryption)
This procedure converts a volume with existing data into an EVFS volume using the inline
encryption feature.
IMPORTANT: To use inline encryption, 3 MB of spare disk space are required at the end
of the volume, and the minimum volume size must be 4 MB. If the entire volume is used,
extend the volume using lvextend for LVM, or vxassist for VXVM.
NOTE: The inline encryption process takes approximately 1.2 minute per GB on 4-CPU
rx4640. Actual performance times vary depending on usage and configuration.
Configuration Overview 49