VMware, configuring VMware VSphere 6.0 DRS, ha, and FT

I. Distributed Resource Scheduler (DRS)

1. Introduction to VMware DRS

Distributed resource scheduling for VMware (distributed Resource Scheduler,drs)

dynamically allocates and balances computational capacity and aggregates hardware resources into logical resource pools.

can continuously monitor the utilization of resource pools, intelligently allocate resources,

allows users to define their own rules and scenarios to determine how virtual machines share resources and to determine the priority between them.

2. Application of DRS in enterprise

Adjustment of IT resources based on business priorities

Significantly increase the productivity of your system administrator

Automatic Hardware Maintenance

Easy to add and deploy new compute capacity

3. Characteristics of DRS

1) resource pool with VMware DRS capability

abstracting resources from the hardware

Flexible, tiered organization

Resource pools and resource pools are directly independent of each other

Control and authorization of access

Manage a complete set of virtual machines running distributed applications

2) manual and Automatic mode

Power-on Assignment

Continuous optimization

3) Maintenance mode of the server

When a host enters maintenance mode without affecting the operation of the virtual machine, DRS chooses the appropriate host to migrate the virtual machines on that host

4) Affinity Rules

4. DRS Configuration Requirements

The configuration of the cluster can directly affect the performance of the DRS, and VMware recommends the following configuration recommendations to maximize the performance of the Drs.

1) When determining the cluster host group, try to select the same CPU and memory host group.

2) Migration threshold value

Hosts in the cluster have the same characteristics

The resource utilization of the virtual machine always remains the same

Cluster has few deployment restrictions on virtual machines

3) DRS Operating frequency

4) Affinity Rules

5) Deployment of virtual machines

6) Resource allocation for virtual machines and resource pools

7) Virtual CPU and memory size of the virtual machine

8) DRS operating mode

Ii. VMware High Availability (HA)

Third, VMware fault tolerance (FT)

VMware, configuring VMware vSphere 6.0DRS, ha, and FT