In an effort to reduce storage space on your server, you would like to eliminate duplicate copies of data in your
server’s ZFS file systems.
How do you specify that pool1/data should not contain duplicate data blocks (redundant data) on write
operations?
A.
zfs create – o compression=on pool1/data
B.
zpool create -o deduplication =on pool1; zfs create pool1/data
C.
zfs create – o deduplication=on pool1; zfs create pool1/data
D.
zfs create – o dedupratio=2 pool1/data
E.
zfs create – o dedup=on pool1/data
Explanation:
ZFS Deduplication Property
Solaris Express Community Edition, build 129: In this Solaris release, you can use the deduplication property to
remove redundant data from your ZFS file systems. If a file system has the dedup property enabled, duplicate
data blocks are removed synchronously. The result is that only unique data is stored and common components
are shared between files.
You can enable this property as follows:
# zfs set dedup=on tank/home