Information Technology Reference
In-Depth Information
The process for actually conducting a scan is identical in all three instances except for the
check box that indicates what type of scan you'd like to perform, as shown in Figure 4.22.
Figure 4.22
Diff erent types
of scans are initi-
ated depending on
the check boxes
selected at the start
of the scan.
What differs among these three types of scans are the requirements needed to perform
a scan:
Scanning for VMware Tools Upgrades If you scan a VM for VMware Tools upgrades and
that VM does not have VMware Tools installed, the scan will succeed but VUM will report
the VM as Incompatible. To get a Compliant or Non-Compliant report, some version of the
VMware Tools needs to already be running within the guest OS installed in the VM. Other
than that requirement, VUM has no other restrictions. VUM can scan both online and ofl ine
VMs and templates.
Scanning for VM Hardware Upgrades Scanning for VM hardware upgrades requires that
the latest version of VMware Tools be installed in the VM i rst. This, of course, means that
a guest OS is installed in the VM. You can perform VM hardware upgrade scans on both
online as well as ofl ine VMs and templates.
Scanning Virtual Appliances Scanning virtual appliances for virtual appliance upgrades
can be performed only on virtual appliances created with VMware Studio 2.0 or later. In
addition, because of the nature of virtual appliances as prepackaged installations of a guest
OS and applications, it's generally not recommended to scan virtual appliances for VMware
Tools upgrades or VM hardware upgrades. Virtual appliances are generally distributed in
such a way that if the developer of the virtual appliance wants to update VMware Tools or
the VM hardware, they will create a new version of the appliance and distribute the entire
appliance.
Unmanaged VMware Tools
Creators of virtual appliances have the option of installing operating system specifi c packages
(OSPs) for VMware Tools. Because installing VMware Tools through the vSphere Client is mutually
exclusive to using the OSP VMware Tools, the OSP VMware Tools will report Unmanaged as the
status in the vSphere Client. In addition, scans of virtual appliances for VMware Tools upgrades
will report the virtual appliance as Incompatible. It's not something to be concerned about because
it allows the virtual appliance creators to use the native operating system packaging tools to more
eff ectively manage the driver updates.
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