Information Technology Reference
In-Depth Information
Figure 6.4 shows the entire life cycle of a Container, along with the commands
you can use to manage one.
Figure 6.4
Container States
The Containers feature set includes comprehensive resource management fea-
tures, also called
resource controls
. These controls allow the platform administra-
tor to manage those resources that are typically controlled in VEs. Use of these
controls is optional, and most are disabled by default. We highly recommend that
you take advantage of these features. They can prevent many problems caused by
one workload consuming more resources than it should.
The following resources were mentioned in Chapter 1, “Introduction to
Virtualization”:
CPU capacity—that is, the portion of a CPU's clock cycles that a VE can use
■
Amount of RAM used
■
Amount of virtual memory or swap space used
■
Network bandwidth consumed
■
Use of kernel data structures—both structures of finite size and ones that
use another finite resource such as RAM
■
This section describes the implementation of resource controls for Containers.
It also demonstrates the use of Solaris tools to monitor resource consumption by
Containers.
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