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

CAUTION: Encrypting the boot disk makes the boot disk unusable and prevents you from
booting the system.
• Swap space (swap devices or file swap space).
CAUTION: Encrypting swap space can cause the system to panic.
• Dump devices.
The syntax of the evfsadm map command is as follows:
evfsadm map volume_path
where:
volume_path
Specifies the absolute path of the block device file for the underlying LVM,
VxVM, or physical volume, such as /dev/vx/dsk/rootdg/vol01,
/dev/vg01/lvol5, or /dev/dsk/c2d0t0.
The evfsadm map command maps the underlying LVM, VxVM, or physical volume to an EVFS
volume. The command also creates a block and a character () device file for the EVFS volume
and adds them to the kernel registry. The evfsadm command stores the EVFS volume device
files using the same file names as the underlying volume block and character device files, but in
subdirectories under the /dev/evfs directory instead of the /dev directory.
NOTE: The maximum number of volumes that the system can map to EVFS is 1023.
Examples
In the following example, the user maps the LVM volume /dev/vg01/lvol5 to an EVFS
volume:
# evfsadm map /dev/vg01/lvol5
Logical volume "/dev/vg01/lvol5" has been successfully mapped
to encrypted volume "/dev/evfs/vg0l/lvol5".
The evfsadm utility creates the following EVFS volume device files:
/dev/evfs/vg01/lvol5
/dev/evfs/vg01/rlvol5
In the following example, the user maps the VxVM volume/dev/vx/dsk/rootdg/vol05 to
an EVFS volume:
# evfsadm map /dev/vx/dsk/rootdg/vol05
Logical volume "/dev/vx/dsk/rootdg/vol05" has been successfully mapped
to encrypted volume "/dev/evfs/vx/dsk/rootdg/vol05".
The evfsadm utility creates the following EVFS volume device files:
/dev/evfs/vx/dsk/rootdg/vol05
/dev/evfs/vx/rdsk/rootdg/vol05
In the following example, the user maps the physical volume /dev/dsk/c2t0d0 to an EVFS
volume:
# evfsadm map /dev/dsk/c2t0d0
Logical volume "/dev/dsk/c2t0d0" has been successfully mapped to
encrypted volume "/dev/evfs/dsk/c2t0d0".
The evfsadm utility creates the following EVFS volume device files:
/dev/evfs/dsk/c2t0d0
/dev/evfs/rdsk/c2t0d0
Step 1c: Creating the EMD
Use the evfsvol create command to create the EMD area on the EVFS volume and specify
the owner key pair for the volume:
52 Configuring an EVFS Volume