Information Technology Reference
In-Depth Information
You perform the following high-level steps to install VUM:
1.
Coni gure VUM's database.
2.
Create an Open Database Connectivity (ODBC) data source name (DSN) for VUM.
3.
Install VUM.
4.
(Optional) Install the Update Manager Download Service (UMDS) if desired.
5.
Install the VUM plug-in for the vSphere Client.
VUM has a one-to-one relationship with vCenter. That is, for every vCenter instance you
need a separate VUM install, and each VUM can provide update services to only one vCenter.
The one exception to this is that you can share the job of downloading patches between multiple
VUMs (and therefore multiple vCenters) with the use of an optional component known
as Update Manager Download Services (UMDS), which is discussed in the section “Installing
the Update Manager Download Service (Optional).”
If you have multiple vCenters that are connected via linked mode, you can use VUM, but a
separate instance is still required for each vCenter. All the installation, coni guration, permis-
sions, update scanning, and remediation are done on a per-VUM basis because they operate
independently.
As discussed previously, with vSphere 5.5 there are now two deployment options for vCen-
ter: the conventional Windows installation and the newer Linux-based prebuilt vCenter Server
Appliance (vCSA). VUM can happily connect to either installation; however, for obvious rea-
sons, your choice helps to shape your deployment model. If you have a Windows-based vCen-
ter, you can either install VUM on the same server instance or use a separate Windows install.
However, because the vCSA is Linux based, if you are opting for this you will have to install
VUM on its own Windows install because there is no VUM service available on the vCSA yet.
Defi ning the Requirements
VUM requires access to a dedicated vCenter instance, so your vSphere licensing must include
vCenter. This therefore excludes the free stand-alone ESXi hypervisor version currently
available.
The VUM server should have 2 GB of RAM at a minimum, and if it's installed on the same
server as vCenter itself, there should be at least 4 GB. We discuss various database options in the
next section, but you should avoid installing VUM on the same database as vCenter (it can be on
the same server; it just should not be on the same database).
Even though VUM is a 32-bit application, it can only be installed on a 64-bit version of
Windows. During the install, you receive a warning if you attempt to put the download reposi-
tory on a drive with less than 120 GB of free space. Additionally, you cannot install VUM on a
server that is also a domain controller.
