How to add encrypted ZFS pool on FreeBSD server

To add an encrypted ZFS pool on a FreeBSD server, you can use the zpool command with the create option and the -o option to specify encryption options.

Here are the steps to follow to add an encrypted ZFS pool on a FreeBSD server:

1. Make sure that the hard drive or other storage device that you want to use for the encrypted ZFS pool is available and properly connected to the FreeBSD server.

2. Determine the name of the device that you want to use for the encrypted ZFS pool. You can use the dmesg command to see a list of available devices, or use the gpart command to list the partitions on a specific device.

3. Use the zpool command with the create option to create a new ZFS pool. For example, to create a new encrypted ZFS pool called "mypool" using the device ada0, you can use the following command:

zpool create mypool ada0

4. Use the -o option to specify encryption options for the ZFS pool. For example, to enable encryption with the default settings, you can use the following command:

zpool set feature@encryption=enabled mypool

This will enable encryption for the ZFS pool "mypool", using the default encryption algorithm (AES-CCM) and key size (256 bits).

5. You can use the zfs command to create datasets (sub-pools) within the encrypted ZFS pool, and use them as you would any other ZFS pool. For example, to create a new dataset called "mydataset" within the "mypool" ZFS pool, you can use the following command:

zfs create mypool/mydataset

The encrypted ZFS pool and its datasets are now ready for use. You can use them to store and manage files as you would any other ZFS pool.

Note: The zpool and zfs commands have many options and features available for managing ZFS pools and datasets. Consult the documentation and online resources for more information on the various options and features available with these commands. It is recommended to use these commands with caution, as improper use can cause data loss or disrupt the operation of the ZFS pool.