vSphere4 Documentation Notes vReference.com
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Main Documentation Set
Introduction to VMware vSphere
o vCompute – aggregate resources
o vStorage – enables the most efficient use and management of storage
o vNetwork 220 702 – simplify and enhance networking
o Fault Tolerance – a secondary copy. Actions completed on the primary VM are also applied to the secondary VM. If the primary VM becomes
unavailable, the secondary machine becomes active, providing continual availability.
o Distributed Virtual Switch (DVS) – spans many hosts reduction of maintenance and increasing network capacity.
o Host Profiles – host configuration management through user-defined configuration policies. Captures the blueprint and monitors compliance.
o Pluggable Storage Array (PSA) – greater array certification flexibility and improved array-optimized performance. A multipath I/O framework.
o Cluster – aggregate computing and memory resources of a group of physical x86 servers sharing the same network and storage arrays.
o Resource pools – partitions of computing and memory resources from a single host or a cluster. can be hierarchical and nested.
o Storage VMotion – enables the migration of VMs from one datastore to another datastore without service interruption
o Fault Tolerance (FT) – uses vLockstep technology, continuous availability by protecting a VM (the Primary VM) with a shadow copy (Secondary
VM) that runs in virtual lockstep on a separate host.
o vNetwork Distributed Switch (dvSwitch) – functions as a single virtual switch across all associated hosts.
o dvPort (distributed virtual port) – a port on a DVS that connects to a host’s service console or VMkernel or to a VM’s network adapter.
o vApp – has the same basic operation as a VM, but can contain multiple VMs or appliances.
o Web Access cannot be used to access a host running ESXi 4.0.
o Web Access is turned off by default for ESX hosts.
Getting Started with ESX
o ESX Service Console is held in the esxconsole.vmdk partition.
o vCenter Server uses Microsoft SQL Server 2005 Express for small deployments with up to 5 hosts and 50 VMs.
o If SQL Native Client is already installed, uninstall SQL Native Client before you begin the vCenter Server installation.
o vCenter server must 9L0-403 belong to a domain rather than a workgroup. Otherwise it’s not able to discover – using such features as vCenter Guided
Consolidation Service. The computer name cannot be more than 15 characters.
o vCenter Server cannot be an Active Directory domain controller.
o The Domain user account should have the following permissions:
o Member of the Administrators group
o Act as part of the operating system
o Log on as a service
ESX and vCenter server installation guide
o ESX4 will only install and run on servers with 64-bit x86 CPUs. They require a 2GB RAM minimum.
o vCenter Server must have 2 CPUs and 3GB RAM.
o The vCenter Server has a service called VMware VirtualCenter Management Webservices. This service requires 128MB to 1.5GB of additional
o You can use a 32-bit Windows for up 200 hosts. A 64-bit Windows can have 200-300 hosts.
o The vSphere Client requires the Microsoft .NET 3.0 SP1 Framework.
o vCenter server required firewall ports:
80 Redirects requests to HTTPS port 443.
389 LDAP port number for the Directory Services for the vCenter Server group. Needs to bind to port 389, even if you are not joining this
vCenter Server instance to a Linked Mode group.
443 Listen for connections from the vSphere Client.
636 For vCenter Linked Mode, this is the SSL port of the local instance
902 Uses to send data to managed hosts. Managed hosts also send a regular heartbeat over UDP port 902 to the vCenter
902/903 Ports used by vSphere Client to display VM consoles.
8080 Web Services HTTP. Used for the VMware VirtualCenter Management Webservices.
8443 Web Services HTTPS. Used for the VMware VirtualCenter Management Webservices.
o If ESX will not use an NTP server, make sure that the server hardware clock is set to UTC in the BIOS (EDIT: As a matter of best practice you
should always set 9L0-510 ESX server’s hardware clocks to UTC)
o IPv6 is not supported for ESX installation
o The service console must be installed on a VMFS datastore that is resident on a host’s local disk or on a SAN disk that is masked and zoned to
that particular host only.
vSphere4 Documentation Notes vReference.com