6.0.2

Table Of Contents
Table 28. Supported Remote Management Server Models and Minimum Firmware Versions (Continued)
Remote Management Server
Model Firmware Version Java
HP ILO 1.81, 1.92 1.6.0_22, 1.6.0_23
HP ILO 2 1.8, 1.81 1.6.0_20, 1.6.0_23
HP ILO 3 1.28 1.7.0_60-b19
HP ILO 4 1.13 1.7.0_60-b19
IBM RSA 2 1.03, 1.2 1.6.0_22
Recommendations for Enhanced ESXi Performance
To enhance performance, install or upgrade ESXi on a robust system with more RAM than the minimum
required and with multiple physical disks.
For ESXi system requirements, see “ESXi Hardware Requirements,” on page 44. See also the technical
papers on vSphere performance at
hps://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/vmware-perest-
practices-vsphere6-0-white-paper.pdf.
Table 29. Recommendations for Enhanced Performance
System Element Recommendation
RAM ESXi hosts require more RAM than typical servers. Provide
at least 8GB of RAM to take full advantage of ESXi features
and run virtual machines in typical production
environments. An ESXi host must have sucient RAM to
run concurrent virtual machines. The following examples
are provided to help you calculate the RAM required by
the virtual machines running on the ESXi host.
Operating four virtual machines with
Red Hat Enterprise Linux or Windows XP requires at least
3GB of RAM for baseline performance. This gure includes
approximately 1024MB for the virtual machines, 256MB
minimum for each operating system as recommended by
vendors.
Running these four virtual machines with 512MB RAM
requires that the ESXi host have approximately 4GB RAM,
which includes 2048MB for the virtual machines.
These calculations do not take into account possible
memory savings from using variable overhead memory for
each virtual machine. See vSphere Resource Management.
Dedicated Fast Ethernet adapters for virtual machines Place the management network and virtual machine
networks on dierent physical network cards. Dedicated
Gigabit Ethernet cards for virtual machines, such as Intel
PRO 1000 adapters, improve throughput to virtual
machines with high network trac.
Disk location Place all data that your virtual machines use on physical
disks allocated specically to virtual machines.
Performance is beer when you do not place your virtual
machines on the disk containing the ESXi boot image. Use
physical disks that are large enough to hold disk images
that all the virtual machines use.
vSphere Upgrade
46 VMware, Inc.