vsphere 4.1 - parte 2

 Availability

• Windows Failover Clustering with VMware HA. Clustered Virtual Machines that utilize Windows Failover Clustering/Microsoft Cluster Service are now fully supported in conjunction with VMware HA. See  Setup for Failover Clustering and Microsoft Cluster Service.
• VMware HA Scalability Improvements. VMware HA has the same limits for virtual machines per host, hosts per cluster, and virtual machines per cluster as vSphere. See  Configuration Maximums for VMware vSphere 4.1 for details about the limitations for this release.
• VMware HA Healthcheck and Operational Status. The VMware HA dashboard in the vSphere Client provides a new detailed window called Cluster Operational Status. This window displays more information about the current VMware HA operational status, including the specific status and errors for each host in the VMware HA cluster. See the  vSphere Availability Guide.
• VMware Fault Tolerance (FT) Enhancements. vSphere 4.1 introduces an FT-specific versioning-control mechanism that allows the Primary and Secondary VMs to run on FT-compatible hosts at different but compatible patch levels. vSphere 4.1 differentiates between events that are logged for a Primary VM and those that are logged for its Secondary VM, and reports why a host might not support FT. In addition, you can disable VMware HA when FT-enabled virtual machines are deployed in a cluster, allowing for cluster maintenance operations without turning off FT. See the  vSphere Availability Guide.
• DRS Interoperability for VMware HA and Fault Tolerance (FT). FT-enabled virtual machines can take advantage of DRS functionality for load balancing and initial placement. In addition, VMware HA and DRS are tightly integrated, which allows VMware HA to restart virtual machines in more situations. See the  vSphere Availability Guide.
• Enhanced Network Logging Performance. Fault Tolerance (FT) network logging performance allows improved throughput and reduced CPU usage. In addition, you can use vmxnet3 vNICs in FT-enabled virtual machines. See the  vSphere Availability Guide.
• Concurrent VMware Data Recovery Sessions. vSphere 4.1 provides the ability to concurrently manage multiple VMware Data Recovery appliances. See the  VMware Data Recovery Administration Guide.
• vStorage APIs for Data Protection (VADP) Enhancements. VADP now offers VSS quiescing support for Windows Server 2008 and Windows Server 2008 R2 servers. This enables application-consistent backup and restore operations for Windows Server 2008 and Windows Server 2008 R2 applications.

Management

• vCLI Enhancements. vCLI adds options for SCSI, VAAI, network, and virtual machine control, including the ability to terminate an unresponsive virtual machine. In addition, vSphere 4.1 provides controls that allow you to log vCLI activity. See the  vSphere Command-Line Interface Installation and Scripting Guide and the vSphere Command-Line Interface Reference.
• Lockdown Mode Enhancements. VMware ESXi 4.1 lockdown mode allows the administrator to tightly restrict access to the ESXi Direct Console User Interface (DCUI) and Tech Support Mode (TSM). When lockdown mode is enabled, DCUI access is restricted to the root user, while access to Tech Support Mode is completely disabled for all users. With lockdown mode enabled, access to the host for management or monitoring using CIM is possible only through vCenter Server. Direct access to the host using the vSphere Client is not permitted. See the  ESXi Configuration Guide.
• Access Virtual Machine Serial Ports Over the Network. You can redirect virtual machine serial ports over a standard network link in vSphere 4.1. This enables solutions such as third-party virtual serial port concentrators for virtual machine serial console management or monitoring. See the  vSphere Virtual Machine Administration Guide.
• vCenter Converter Hyper-V Import. vCenter Converter allows users to point to a Hyper-V machine. Converter displays the virtual machines running on the Hyper-V system, and users can select a powered-off virtual machine to import to a VMware destination. See the  vCenter Converter Installation and Administration Guide.
• Enhancements to Host Profiles. You can use Host Profiles to roll out administrator password changes in vSphere 4.1. Enhancements also include improved Cisco Nexus 1000V support and PCI device ordering configuration. See the  ESX Configuration Guide and the  ESXi Configuration Guide.
• Unattended Authentication in vSphere Management Assistant (vMA). vMA 4.1 offers improved authentication capability, including integration with Active Directory and commands to configure the connection. See VMware vSphere Management Assistant.
• Updated Deployment Environment in vSphere Management Assistant (vMA). The updated deployment environment in vMA 4.1 is fully compatible with vMA 4.0. A significant change is the transition from RHEL to CentOS. See VMware vSphere Management Assistant.
• vCenter Orchestrator 64-bit Support. vCenter Orchestrator 4.1 provides a client and server for 64-bit installations, with an optional 32-bit client. The performance of the Orchestrator server on 64-bit installations is greatly enhanced, as compared to running the server on a 32-bit machine. See the  vCenter Orchestrator Installation and Configuration Guide.
• Improved Support for Handling Recalled Patches in vCenter Update Manager. Update Manager 4.1 immediately sends critical notifications about recalled ESX and related patches. In addition, Update Manager prevents you from installing a recalled patch that you might have already downloaded. This feature also helps you identify hosts where recalled patches might already be installed. See the  vCenter Update Manager Installation and Administration Guide.
• License Reporting Manager. The License Reporting Manager provides a centralized interface for all license keys for vSphere 4.1 products in a virtual IT infrastructure and their respective usage. You can view and generate reports on license keys and usage for different time periods with the License Reporting Manager. A historical record of the utilization per license key is maintained in the vCenter Server database. See the  vSphere Datacenter Administration Guide.
• Power Management Improvements. ESX 4.1 takes advantage of deep sleep states to further reduce power consumption during idle periods. The vSphere Client has a simple user interface that allows you to choose one of four host power management policies. In addition, you can view the history of host power consumption and power cap information on the vSphere Client Performance tab on newer platforms with integrated power meters. See the vSphere Datacenter Administration Guide.