HP Education Services H
Storage I/O Control. This feature
vSphere 4.1 introduces an impressive capabilities for storage I/O in the
number of new features: form of I/O shares and limits that are
enforced across all virtual machines
Scripted Install for ESXi. Scripted accessing a datastore, regardless of
installation of ESXi to local and which host they are running on.
remote disks allows rapid Using Storage I/O Control, vSphere
deployment of ESXi to many administrators can ensure that the
machines. You can start the scripted most important virtual machines get
installation with a CD-ROM drive or adequate I/O resources even in times
over the network by using PXE of congestion.
booting. iSCSI Hardware Offloads. vSphere
vSphere Client Removal from 4.1 enables 10Gb iSCSI hardware
ESX/ESXi Builds. For ESX and offloads (Broadcom 57711) and 1Gb
ESXi, the vSphere Client is available iSCSI hardware offloads (Broadcom
for download from the VMware Web 5709).
site. It is no longer packaged with Network I/O Control. Traffic-
builds of ESX and ESXi. management controls allow flexible
Boot from SAN. vSphere 4.1 partitioning of physical NIC
enables ESXi boot from SAN (BFN). bandwidth between different traffic
iSCSI, FCoE, and Fibre Channel types, including virtual machine,
boot are supported. vMotion, FT, and IP storage traffic
(vNetwork Distributed Switch only).
Hardware Acceleration with IPv6 Enhancements. IPv6 in ESX
vStorage APIs for Array supports Internet Protocol Security
Integration (VAAI). ESX can (IPsec) with manual keying.
offload specific storage operations to Load-Based Teaming. vSphere 4.1
compliant storage hardware. With allows dynamic adjustment of the
storage hardware assistance, ESX teaming algorithm so that the load is
performs these operations faster and always balanced across a team of
consumes less CPU, memory, and physical adapters on a vNetwork
storage fabric bandwidth. Distributed Switch.
Storage Performance Statistics. E1000 vNIC Enhancements. E1000
vSphere 4.1 offers enhanced vNIC supports jumbo frames in
visibility into storage throughput and vSphere 4.1.
latency of hosts and virtual machines, Windows Failover Clustering with
and aids in troubleshooting storage VMware HA. Clustered Virtual
performance issues. NFS statistics Machines that utilize Windows
are now available in vCenter Server Failover Clustering/Microsoft
performance charts, as well as esxtop. Cluster Service are now fully
New VMDK and datastore statistics supported in conjunction with
are included. All statistics are VMware HA.
available through the vSphere SDK. VMware HA Scalability
Improvements. VMware HA has
HP Education Services H
the same limits for virtual machines CPU usage. In addition, you can use
per host, hosts per cluster, and virtual vmxnet3 vNICs in FT-enabled
machines per cluster as vSphere. virtual machines.
VMware HA Healthcheck and Concurrent VMware Data
Operational Status. The VMware Recovery Sessions. vSphere 4.1
HA dashboard in the vSphere Client provides the ability to concurrently
provides a new detailed window manage multiple VMware Data
called Cluster Operational Status. Recovery appliances.
This window displays more vStorage APIs for Data Protection
information about the current (VADP) Enhancements. VADP
VMware HA operational status, now offers VSS quiescing support
including the specific status and for Windows Server 2008 and
errors for each host in the VMware Windows Server 2008 R2 servers.
HA cluster. This enables application-consistent
VMware Fault Tolerance (FT) backup and restore operations for
Enhancements. vSphere 4.1 Windows Server 2008 and Windows
introduces an FT-specific Server 2008 R2 applications.
versioning-control mechanism that vCLI Enhancements. vCLI adds
allows the Primary and Secondary options for SCSI, VAAI, network,
VMs to run on FT-compatible hosts and virtual machine control,
at different but compatible patch including the ability to terminate an
levels. vSphere 4.1 differentiates unresponsive virtual machine. In
between events that are logged for a addition, vSphere 4.1 provides
Primary VM and those that are controls that allow you to log vCLI
logged for its Secondary VM, and activity.
reports why a host might not support Lockdown Mode Enhancements.
FT. In addition, you can disable VMware ESXi 4.1 lockdown mode
VMware HA when FT-enabled allows the administrator to tightly
virtual machines are deployed in a restrict access to the ESXi Direct
cluster, allowing for cluster Console User Interface (DCUI) and
maintenance operations without Tech Support Mode (TSM). When
turning off FT. lockdown mode is enabled, DCUI
DRS Interoperability for VMware access is restricted to the root user,
HA and Fault Tolerance (FT). FT- while access to Tech Support Mode
enabled virtual machines can take is completely disabled for all users.
advantage of DRS functionality for With lockdown mode enabled,
load balancing and initial placement. access to the host for management or
In addition, VMware HA and DRS monitoring using CIM is possible
are tightly integrated, which allows only through vCenter Server. Direct
VMware HA to restart virtual access to the host using the vSphere
machines in more situations. Client is not permitted.
Enhanced Network Logging Access Virtual Machine Serial
Performance. Fault Tolerance (FT) Ports Over the Network. You can
network logging performance allows redirect virtual machine serial ports
improved throughput and reduced over a standard network link in
HP Education Services H
vSphere 4.1. This enables solutions Update Manager. Update Manager
such as third-party virtual serial port 4.1 immediately sends critical
concentrators for virtual machine notifications about recalled ESX and
serial console management or related patches. In addition, Update
monitoring. Manager prevents you from
vCenter Converter Hyper-V installing a recalled patch that you
Import. vCenter Converter allows might have already downloaded.
users to point to a Hyper-V machine. This feature also helps you identify
Converter displays the virtual hosts where recalled patches might
machines running on the Hyper-V already be installed.
system, and users can select a License Reporting Manager. The
powered-off virtual machine to License Reporting Manager provides
import to a VMware destination. a centralized interface for all license
Enhancements to Host Profiles. keys for vSphere 4.1 products in a
You can use Host Profiles to roll out virtual IT infrastructure and their
administrator password changes in respective usage. You can view and
vSphere 4.1. Enhancements also generate reports on license keys and
include improved Cisco Nexus usage for different time periods with
1000V support and PCI device the License Reporting Manager. A
ordering configuration. historical record of the utilization per
Unattended Authentication in license key is maintained in the
vSphere Management Assistant vCenter Server database.
(vMA). vMA 4.1 offers improved Power Management
authentication capability, including Improvements. ESX 4.1 takes
integration with Active Directory advantage of deep sleep states to
and commands to configure the further reduce power consumption
connection. during idle periods. The vSphere
Updated Deployment Client has a simple user interface
Environment in vSphere that allows you to choose one of four
Management Assistant (vMA). The host power management policies. In
updated deployment environment in addition, you can view the history of
vMA 4.1 is fully compatible with host power consumption and power
vMA 4.0. A significant change is the cap information on the vSphere
transition from RHEL to CentOS. Client Performance tab on newer
vCenter Orchestrator 64-bit platforms with integrated power
Support. vCenter Orchestrator 4.1 meters.
provides a client and server for 64- Reduced Overhead Memory.
bit installations, with an optional 32- vSphere 4.1 reduces the amount of
bit client. The performance of the overhead memory required,
Orchestrator server on 64-bit especially when running large virtual
installations is greatly enhanced, as machines on systems with CPUs that
compared to running the server on a provide hardware MMU support
32-bit machine. (AMD RVI or Intel EPT).
Improved Support for Handling DRS Virtual Machine Host
Recalled Patches in vCenter Affinity Rules. DRS provides the
HP Education Services H
ability to set constraints that restrict Configuring USB Device
placement of a virtual machine to a Passthrough from an ESX/ESXi
subset of hosts in a cluster. This Host to a Virtual Machine. You
feature is useful for enforcing host- can configure a virtual machine to
based ISV licensing models, as well use USB devices that are connected
as keeping sets of virtual machines to an ESX/ESXi host where the
on different racks or blade systems virtual machine is running. The
for availability reasons. connection is maintained even if you
Memory Compression. Compressed migrate the virtual machine using
memory is a new level of the vMotion.
memory hierarchy, between RAM Improvements in Enhanced
and disk. Slower than memory, but vMotion Compatibility. vSphere
much faster than disk, compressed 4.1 includes an AMD Opteron Gen.
memory improves the performance 3 (no 3DNow!) EVC mode that
of virtual machines when memory is prepares clusters for vMotion
under contention, because less compatibility with future AMD
virtual memory is swapped to disk. processors. EVC also provides
vMotion Enhancements. In vSphere numerous usability improvements,
4.1, vMotion enhancements including the display of EVC modes
significantly reduce the overall time for virtual machines, more timely
for host evacuations, with support for error detection, better error messages,
more simultaneous virtual machine and the reduced need to restart
migrations and faster individual virtual machines.
virtual machine migrations. The vCenter Update Manager Support
result is a performance improvement for Provisioning, Patching, and
of up to 8x for an individual virtual Upgrading EMC’s ESX
machine migration, and support for PowerPath Module. vCenter
four to eight simultaneous vMotion Update Manager can provision,
migrations per host, depending on patch, and upgrade third-party
the vMotion network adapter (1GbE modules that you can install on ESX,
or 10GbE respectively). such as EMC’s PowerPath
ESX/ESXi Active Directory multipathing software. Using the
Integration. Integration with capability of Update Manager to set
Microsoft Active Directory allows policies using the Baseline construct
seamless user authentication for and the comprehensive Compliance
ESX/ESXi. You can maintain users Dashboard, you can simplify
and groups in Active Directory for provisioning, patching, and upgrade
centralized user management and of the PowerPath module at scale.
you can assign privileges to users or User-configurable Number of
groups on ESX/ESXi hosts. In Virtual CPUs per Virtual Socket.
vSphere 4.1, integration with Active You can configure virtual machines
Directory allows you to roll out to have multiple virtual CPUs reside
permission rules to hosts by using in a single virtual socket, with each
Host Profiles. virtual CPU appearing to the guest
operating system as a single core.
HP Education Services H
Previously, virtual machines were
restricted to having only one virtual
CPU per virtual socket.
Expanded List of Supported
Processors. The list of supported
processors has been expanded for
ESX 4.1. Among the supported
processors is the Intel Xeon 7500
Series processor, code-named
Nehalem-EX (up to 8 sockets).