Exam 1z0-820 topic 1 question 27 discussion

Actual exam question from Oracle's 1z0-820

Question #: 27
Topic #: 1

In an effort to reduce storage space on your server, you would like to eliminate duplicate copies of data in your servers 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 E

Show Suggested Answer

Suggested Answer: 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

by [deleted] at April 4, 2025, 12:05 p.m.

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