global# zlogin my-zone
4. Run the DTrace program.

my-zone# dtrace -l

Note:
* Oracle Solaris DTrace is a comprehensive, advanced tracing tool for troubleshooting systemic
problems in real time.
* DTrace helps you understand a software system by enabling you to dynamically modify the
operating system kernel and user processes to record additional data that you specify at
locations of interest, called probes.

Reference: System Administration Guide: Oracle Solaris Containers-Resource Management
and Oracle Solaris Zones, Using DTrace in a Non-Global Zone

QUESTION: 4
Your system has two disk devices, c2t0d0 and c2t1d0, and two flash devices, c2t5d0 and
c2t8d0. Which command would you to create a storage pool named "tank," which mirrors the
disks and adds the two flash devices as "cache"?

A. zpool create tank mirror c2t0d0 c2t1d0 mirror c2t5d0 c2t8d0
B. zpool create tank mirror c2t0d0 c2t1d0 log mirror c2t5d0 c2t8d0
C. zpool c2t0d0 c2t1d0 cache c2t5d0 c2t8d0 mirror
D. zpool create tank mirror c2t0d0 c2t1d0 cache c2t5d0 c2t8d0
E. zpool create tank raidz2 c2t0d0 c2t1d0 c2t5d0 c2t8d0

Answer(s): D
Explanation:
Creating a ZFS Storage Pool with Cache Devices
You can create a storage pool with cache devices to cache storage pool data. For example:
# zpool create tank mirror c2t0d0 c2t1d0 c2t3d0 cache c2t5d0 c2t8d0
Note:
* Creating a Basic Storage Pool
The following command creates a new pool named tank that consists of the disks c1t0d0 and
c1t1d0:

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