Mastering Windows Server 2016 Hyper-V

must/should relate  to  the host,   as  shown   in  Figure  7.41.

10 . Click OK to all dialog boxes.

Figure  7.41    Setting a   placement   rule    for a   host    group

Windows Server  2016    introduces  some    new native  capabilities:   Node    Fairness    and VM

Start   Ordering.   Node    Fairness    provides    a   native, basic   version of  Dynamic

Optimization    in  Failover    Clustering.

Node    fairness    is  enabled by  default,    and based   on  memory  and CPU utilization,    it  will

automatically   live-migrate    VMs between cluster nodes   to  rebalance   utilization.    Any

rules   around  possible    owners, fault   domains,    and anti-affinity   are honored as  part    of

the rebalancing.    There   are some    configurations  as  to  how aggressive  the balancing

should  be, based   on  the host    being   60  percent,    70  percent or  80  percent utilized.   The

exact   options are shown   in  Table   7.1.

Table   7.1: AutoBalancerLevel  Options

AUTOBALANCERLEVEL AGGRESSIVENESSHOST    LOAD    PERCENTAGE

1   (default) Low 80%

2 Medium 70%

3 High 60%

This    is  configured  via the AutoBalancerLevel   property    of  the cluster;    for example:

(Get-Cluster).AutoBalancerLevel =   2