Can ZFS be encrypted?
ZFS encryption is integrated with the ZFS command set. Like other ZFS operations, encryption operations such as key changes and rekey are performed online. You can use your existing storage pools as long as they are upgraded. You have the flexibility of encrypting specific file systems.
What encryption does ZFS use?
The default encryption algorithm is aes-128-ccm when a file system’s encryption value is on. A wrapping key is used to encrypt the actual data encryption keys. The wrapping key is passed from the zfs command, as in the above example when the encrypted file system is created, to the kernel.
How do I know if my ZFS is encrypted?
If you see something along the lines of gptid/. eli . The . eli is a good sign the pool is encrypted.
How do you mount encrypted ZFS?
If you want to mount a file system with an encryption policy set to passphrase,prompt at boot time, you will need to either explicitly mount it with the zfs mount command and specify the passphrase or use the zfs key –l command to be prompted for the key after the system is booted.
How does ZFS encryption work?
A final note: ZFS doesn’t actually encrypt your data directly with a supplied passphrase; it encrypts your data with a pseudo-randomly generated master-key. Your passphrase unlocks that master-key, which then becomes available for use working with the volume itself!
What is ZFS scrubbing?
The scrub examines all data in the specified pools to verify that it checksums correctly. For replicated (mirror or raidz) devices, ZFS automatically repairs any damage discovered during the scrub. The zpool status command reports the progress of the scrub and summarizes the results of the scrub upon completion.
What is btrfs metadata?
In btrfs, this includes all of the internal data structures of the filesystem, including directory structures, filenames, file permissions, checksums, and the location of each file’s extents. All btrfs metadata is stored in B-trees.
How often should I scrub ZFS?
It’s best practice to schedule at least one scrub a month, and some may want to do it as often is even one time a week, although this isn’t completely necessary.
How to manage ZFS data encryption?
– raidz1 (or just raidz) – single parity – raidz2 – double parity – raidz3 – triple parity
How can ZFS be used with encryption on OS X?
– zpool version: the zpool version should be 30 or higher – Root file system: the as of this writing, root file system cannot be encrypted – The zfs encryption property is read-only, you can not set it after the file system was created – Passphrase should be at least 8 characters in length
How can I encrypt a ZFS partition?
ZFS encryption is integrated with the ZFS command set.
How to move the /users to an encrypted ZFS drive?
– Inherit (or don’t inherit) parent’s / encryptionroot’s encryption scheme (adopts same keyfile or passphrase and iterations) – Keyfile or manually generated 64-character random key string – Passphrase – Iterations