Your server has a ZFS storage pool that is configured as follows: 

The server has two spate 140-GB disk drives: c3t5d0 c3t6d0 Which command would add redundancy to the pool1 storage pool? 

Answer options:

A. zpool attach pool1 c3t5d0 c3t6d0
B. zpool attach pool1 c3t3d0 c3c5d0; zpoo1 attach pool1 c3t4d0 c3t6d0
C. zpool mirror pool1 c3t5d0 c3t6d0
D. zpool add pool1 mirror c3t5d0 c3t6d0
E. zpool add raidz pool1 c3t5d0 c3t6d0

A

You can convert a non-redundant storage pool into a redundant storage pool by using the zpool attach command. Note: zpool attach [-f] pool device new_device Attaches new_device to an existing zpool device. The existing device cannot be part of a raidz configuration. If device is not currently part of a mirrored configuration, device automatically transforms into a two-way mirror of device and new_device. If device is part of a two-way mirror, attaching new_device creates a three-way mirror, and so on. In either case, new_device begins to resilver immediately.