The current ZFS configuration on your server is: pool1 124K 3.91G 32K /pool1 pool1/data 31K 3.91G 31K /data You need to create a new file system named /data2. /data2 will be a copy of the /data file system. You need to conserve disk space on this server whenever possible. Which option should you choose to create /data2, which will be a read writeable copy of the /data file system, while minimizing the amount of total disk space used in pool1? 

Answer options:

A. zfs set mountpoint=/data2 compression=on pool1/data2
B. zfs snapshot pool1/data@nowzfs set mountpoint=/data2, comptession=on pool1/data@now
C. zfs create snapshot pool1/data@nowzfs send pool1/data@now | zfs recv pool1/data2
D. zfs create snapshot pool1/data@nowzfs clone -o mountpoint=/data2 pool1/data@now pool1/data2
E. zfs snapshot pool1/data@nowzfs clone -o mountpoint=/data2 -ocompression=on pool1/data@now pool1/data2
F. zfs snapshot pool1/data@nowzfs clone -o mountpoint=/data2 pool1/data@now pool1/data2

E

zfs snapshot [-r] [-o property=value] ... filesystem@snapname|volume@snapname Creates a snapshot with the given name. All previous modifications by successful system calls to the file system are part of the snapshot zfs clone [-p] [-o property=value] ... snapshot filesystem|volume Creates a clone of the given snapshot. Note: Because snapshots are fast and low overhead, they can be used extensively without great concern for system performance or disk use . With ZFS you can not only create snapshot but create a clone of a snapshot. A clone is a writable volume or file system whose initial contents are the same as the dataset from which it was created. As with snapshots, creating a clone is nearly instantaneous, and initially consumes no additional disk space. In addition, you can snapshot a clone. A clone is a writable volume or file system whose initial contents are the same as the original dataset. As with snapshots, creating a clone is nearly instantaneous, and initially consumes no additional space. Clones can only be created from a snapshot. When a snapshot is cloned, it creates an implicit dependency between the parent and child.