Installation guide

Chapter 4: Solution Implementation
37
EMC VSPEX End-User Computing: VMware Horizon View 5.3
and VMware vSphere for up to 2,000 Virtual Desktops
Implementation Guide
If the storage required for infrastructure virtual machines (that is, SQL Server, domain
controller, vCenter Server, and Horizon View Connection servers) does not exist in the
production environment already and you have purchased the optional user data disk
pack, configure an NFS file system on the VNX to be used as the NFS datastore in
which the infrastructure virtual machines reside. Repeat the configuration steps in
Provision storage for NFS datastores (file only) to provision the optional storage,
while taking into account the smaller number of drives.
Figure 13 shows the Storage Pool Properties dialog box in Unisphere, which displays
parameters such as Total, Free, Percent Full, and Total Allocation for a system’s
physical capacity, and Total Subscription, Percent Subscribed, and Percent
Oversubscribed for a system’s virtual capacity.
Examining storage pool space utilization Figure 13.
When storage pool capacity becomes exhausted, any requests for additional space
allocation on thin-provisioned LUNs fail. Applications attempting to write data to
these LUNs usually fail as well, and an outage is the likely result. To avoid this
situation:
1. Monitor pool utilization.
2. Set an alert that notifies you when thresholds are reached.
3. Set Percentage Full Threshold to allow enough buffer space to correct the
situation before an outage situation occurs.
This setting is under Advanced in the Storage Pool Properties dialog box, as
shown in Figure 14.
Provision optional
storage for
infrastructure
virtual machines
Setting Virtual
Provisioning
thresholds and
alerts