HP UX Encrypted Volume and Filesystem (EVFS) manual Disable the Evfs backup volume. For example

6.Check the file system on the EVFS backup volume for consistency using the fsck command. For example:

#fsck -F vxfs /dev/evfs/vg01/rlvol5backup

7.Create a temporary directory to use as mount point for the EVFS backup volume. For example:

#mkdir /opt/evfs/backup_source

8.Mount the temporary directory on the EVFS backup volume. For example:

#mount -F vxfs /dev/evfs/vg01/lvol5backup /opt/evfs/backup_source

9.EVFS encryption and decryption must be enabled on the target volume also. Use the evfsadm stat -a or evfsvol display evfs_volume_path command to verify that EVFS is enabled on the target volume. In this example, /dev/evfs/vg01/lvol6 is a spare EVFS volume that will be used as the backup target device:

#evfsvol display /dev/evfs/vg01/lvol6

10.Use a file-based backup utility to back up data from temporary directory to a directory on the target volume. In this example, the directory /opt/evfs/backup_target is mounted on the spare EVFS volume /dev/evfs/vg01/lvol6:

#cp -r /opt/evfs/backup_source /opt/evfs/backup_target

11.Unmount the file system on the EVFS backup volume to begin the procedure to return the backup volume to its original state. For example:

#umount /opt/evfs/backup_source

12.Disable the EVFS backup volume. For example:

#evfsvol disable -k mykey /dev/evfs/vg01/lvol5backup

The evfsvol utility prompts you for the passphrase if a stored passphrase does not exist.

13.Unmap the backup EVFS volume using the evfsadm unmap command. For example:

#evfsadm unmap /dev/evfs/vg01/lvol5backup

14.Merge the backup volume back with the original LVM volume using the lvmerge command

. For example:

#lvmerge /dev/vg01/lvol5backup /dev/vg01/lvol5

Example

In the following example, the administrator splits the mirror volume /dev/vg01/lvol5 and creates the volume /dev/vg01/lvol5backup and mounts the file system on /opt/evfs/backup_source. The target is the directory /opt/evfs/backup_target, which is mounted on the EVFS volume/dev/evfs/vg01/lvol6. The cp command receives cleartext from the source EVFS volume and the target EVFS volume encrypts the data.

#lvsplit –s backup /dev/vg01/lvol5 (LVM creates the /dev/vg01/lvol5backup volume)

#evfsvol map /dev/vg01/lvol5backup

#evfsvol check -r /dev/evfs/vg01/lvol5backup

#evfsvol enable -k mykey /dev/evfs/vg01/lvol5backup (evfsvol prompts for

a passphrase if there is no stored passphrase.)

#fsck -F vxfs /dev/evfs/vg01/lvol5backup

#mkdir /opt/evfs/backup_source

#mount -F vxfs /dev/evfs/vg01/lvol5/backup /opt/evfs/backup_source

#evfsvol display /dev/evfs/vg01/lvol6 (Verify that the target EVFS volume is enabled.)

#cp -r /opt/evfs/backup_source /opt/evfs/backup_target (/opt/evfs/backup_target is mounted on /dev/evfs/vg01/lvol6)

#umount /opt/evfs/backup_source

#evfsvol disable -k mykey /dev/evfs/vg01/lvol5backup (evfsvol prompts for

a passphrase if there is no stored passphrase.)

#evfsadm unmap /dev/evfs/vg01/lvol5backup

#lvmerge /dev/vg01/lvol5backup /dev/vg01/lvol5

110 Backing Up and Restoring Data on EVFS Volumes