6.5.1
Table Of Contents
- vSphere Resource Management
- Contents
- About vSphere Resource Management
- Getting Started with Resource Management
- Configuring Resource Allocation Settings
- CPU Virtualization Basics
- Administering CPU Resources
- Memory Virtualization Basics
- Administering Memory Resources
- Configuring Virtual Graphics
- Managing Storage I/O Resources
- Managing Resource Pools
- Creating a DRS Cluster
- Using DRS Clusters to Manage Resources
- Creating a Datastore Cluster
- Initial Placement and Ongoing Balancing
- Storage Migration Recommendations
- Create a Datastore Cluster
- Enable and Disable Storage DRS
- Set the Automation Level for Datastore Clusters
- Setting the Aggressiveness Level for Storage DRS
- Datastore Cluster Requirements
- Adding and Removing Datastores from a Datastore Cluster
- Using Datastore Clusters to Manage Storage Resources
- Using NUMA Systems with ESXi
- Advanced Attributes
- Fault Definitions
- Virtual Machine is Pinned
- Virtual Machine not Compatible with any Host
- VM/VM DRS Rule Violated when Moving to another Host
- Host Incompatible with Virtual Machine
- Host Has Virtual Machine That Violates VM/VM DRS Rules
- Host has Insufficient Capacity for Virtual Machine
- Host in Incorrect State
- Host Has Insufficient Number of Physical CPUs for Virtual Machine
- Host has Insufficient Capacity for Each Virtual Machine CPU
- The Virtual Machine Is in vMotion
- No Active Host in Cluster
- Insufficient Resources
- Insufficient Resources to Satisfy Configured Failover Level for HA
- No Compatible Hard Affinity Host
- No Compatible Soft Affinity Host
- Soft Rule Violation Correction Disallowed
- Soft Rule Violation Correction Impact
- DRS Troubleshooting Information
- Cluster Problems
- Load Imbalance on Cluster
- Cluster is Yellow
- Cluster is Red Because of Inconsistent Resource Pool
- Cluster Is Red Because Failover Capacity Is Violated
- No Hosts are Powered Off When Total Cluster Load is Low
- Hosts Are Powered-off When Total Cluster Load Is High
- DRS Seldom or Never Performs vMotion Migrations
- Host Problems
- DRS Recommends Host Be Powered on to Increase Capacity When Total Cluster Load Is Low
- Total Cluster Load Is High
- Total Cluster Load Is Low
- DRS Does Not Evacuate a Host Requested to Enter Maintenance or Standby Mode
- DRS Does Not Move Any Virtual Machines onto a Host
- DRS Does Not Move Any Virtual Machines from a Host
- Virtual Machine Problems
- Cluster Problems
- Index
I
I/O filters, about 50
idle memory tax 35
iLO, configuring 82
incompatible host 124
initial placement
NUMA 109
Storage DRS 92
insufficient capacity 124
insufficient resources 125
Intelligent Platform Management Interface
(IPMI), configuring 82
inter-VM anti-affinity rules, creating 102
intra-VM anti-affinity rules 103
introduction 127
invalid DRS clusters 81
L
Last Time Exited Standby 85
latency sensitivity 120
Latency Sensitivity setting 120
limit 12
load balancing
datastores 91
Storage DRS 94
virtual machines 65
logical processors 19, 20
LPage.LPageAlwaysTryForNPT 116
LPage.LPageDefragEnable 116
LPage.LPageDefragRateTotal 116
LPage.LPageDefragRateVM 116
M
maintenance mode
datastores 97, 98
hosts 76
hosts entering 76
ignore affinity rules 98
manual DRS 69
Mem.AllocGuestLargePage 116
Mem.AllocUseGuestPool 116
Mem.AllocUsePSharePool 116
Mem.BalancePeriod 116
Mem.CtlMaxPercent 116
Mem.IdleTax 35, 116
Mem.MemZipEnable 116
Mem.MemZipMaxPct 116
Mem.SamplePeriod 34, 116
Mem.ShareScanGHz 40, 116
Mem.ShareScanTime 40, 116
memory
advanced attributes 116
balloon driver 36
managing allocation 33
overcommitment 28, 38
overhead 27
overhead, understanding 33
reclaiming unused 35
sharing 28
sharing across virtual machines 40
virtual machines 35
memory allocation 43
memory allocationmemory allocation 44
memory resources, editing 13
memory virtualization
hardware-assisted 30
software-based 30
memory affinity, NUMA nodes 112
memory compression 41
memory compression cache
disabling 41
enabling 41
set size 41
memory idle tax 35
memory reclamation 35
memory reliability 43
memory usage 42
migration recommendations 66
migration thresholds, DRS 66
monitoring, Storage I/O Control 51
monitoring software 85
multicore processors 20
N
NUMA
advanced attributes 117
AMD Opteron-based systems 110
challenges for operating systems 107
CPU affinity 112, 113
description 107
dynamic load balancing 109
home nodes 109
home nodes and initial placement 109
IBM Enterprise X-Architecture 110
manual controls 111
memory affinity 113
memory page sharing 110
optimization algorithms 109
page migration 109
scheduling 108
supported architectures 110
transparent page sharing 110
virtual 110, 111
Numa.AutoMemAffinity 117
Index
VMware, Inc. 139