Information Technology Reference
In-Depth Information
Chapter 6. Advanced Storage and
Networking Features
In the previous chapter, we learned various high-availability features supported by Red Hat
Enterprise Virtualization. Now, it's time to move on and learn some advanced storage fea-
tures offered in Red Hat Enterprise Virtualization, such as sharing disks across multiple vir-
tual machines for an application's high availability using cluster software that needs shared
storage access and raw device mapping of direct LUN from storage for workloads that are
I/O intensive such as database, resize guest virtual disks, and moving live virtual machine
disks across storage domains in the data center.
Set up a
Virtual Network Interface Card
(
VNIC
) profile to apply network
Quality of
Service
(
QoS
) that allows you to control the network's resource usage based on the user
level, hot plug of virtual disks, and the virtual network adapter to the guest operating sys-
tem that runs on Red Hat Enterprise Virtualization.
In this chapter, we will cover the following topics:
• Shareable disks
• Direct
Logical Unit Number
(
LUN)
mapping
• Virtual disk resize
• Storage live migration
• VNIC QoS
• Hot plugging devices
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