The approach is a suitable and correct approach for upgrading vSphere from version 4.1 to 5.0 while addressing the requirements of keeping the system close to the current configuration, minimizing service impact, and enabling storage I/O control for a mission-critical business application.
By following this approach, you can effectively upgrade the vSphere environment, maintain a similar configuration, minimize service impact, and enable storage I/O control for your mission-critical application. As always, ensure you have backups and perform thorough testing after the upgrade to validate the functionality and performance of the upgraded environment.
True. DRS (Distributed Resource Scheduler) and vMotion can help increase consolidation ratios in a virtualized environment.
DRS is a feature in VMware vSphere that automates the load balancing of virtual machines across ESXi hosts within a cluster. It continuously monitors resource utilization, such as CPU and memory, and makes intelligent decisions to distribute the VMs across hosts to optimize resource utilization and performance.
No, the newly created VM is not protected by VMware High Availability (HA) in this scenario.
VMware HA relies on vCenter Server to monitor the health and availability of ESXi hosts within a cluster. When an ESXi host fails or becomes unresponsive, VMware HA takes action to restart the affected VMs on other healthy hosts within the cluster.
No, Storage DRS (Distributed Resource Scheduler) is not enabled by default in VMware vSphere. Storage DRS is a feature that provides automated storage management and load balancing for data stores within a vSphere environment.
To enable Storage DRS, it must be explicitly configured and enabled at the datastore cluster level. Once enabled, Storage DRS uses algorithms to monitor and analyze storage utilization, performance, and other factors to make recommendations or automate storage-related tasks such as datastore migrations and load balancing.
Network I/O Control (NIOC) can be configured to ensure that a type of traffic receives priority for bandwidth when there is congestion.
NIOC is a feature in VMware vSphere that enables you to allocate and prioritize network resources among different types of network traffic. It helps in managing and controlling network congestion by assigning shares and limits to various traffic types.
In VMware vSphere, a physical network adapter can belong to only one virtual switch.
Each physical network adapter in the host system can be associated with a single virtual switch, which acts as a virtual networking bridge between the virtual machines and the physical network. The physical adapter is connected to the virtual switch, allowing communication between the virtual machines and the external network.
The statement "If in the event of a vCenter failure, auto-deployment of existing ESXi hosts is impossible" is not correct.
In the event of a vCenter failure, existing ESXi hosts can still be auto-deployed using the Auto Deploy feature in VMware vSphere. Auto Deploy allows you to provision and deploy ESXi hosts based on predefined rules and configurations, even if vCenter is unavailable.
Auto Deploy works independently of vCenter and uses VMware's vSphere Image Builder to create stateless ESXi images and rules for deployment. These images and rules are stored on the Auto Deploy server, which is separate from vCenter.
