6.0.1
Table Of Contents
- vSphere Resource Management
- Contents
- About vSphere Resource Management
- Updated Information
- Getting Started with Resource Management
- Configuring Resource Allocation Settings
- CPU Virtualization Basics
- Administering CPU Resources
- Memory Virtualization Basics
- Administering Memory Resources
- View Graphics Information
- 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
hosts
adding to DRS clusters 73, 74
advanced attributes 115
as resource providers 11
removing from a DRS cluster 77
virtual machine swapfile location 40
hyperthreading
and hosts 23
CPU affinity 23
disabling 21
enabling 23
performance implications 22
I
idle memory tax 37
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 14
load balancing
datastores 91
Storage DRS 94
virtual machines 65
logical processors 21, 22
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 70
Mem.AllocGuestLargePage 116
Mem.AllocUseGuestPool 116
Mem.AllocUsePSharePool 116
Mem.BalancePeriod 116
Mem.CtlMaxPercent 116
Mem.IdleTax 37, 116
Mem.MemZipEnable 116
Mem.MemZipMaxPct 116
Mem.SamplePeriod 36, 116
Mem.ShareScanGHz 42, 116
Mem.ShareScanTime 42, 116
memory
advanced attributes 116
balloon driver 38
managing allocation 35
overcommitment 30, 40
overhead 29
overhead, understanding 35
reclaiming unused 37
sharing 30
sharing across virtual machines 42
virtual machines 37
memory allocation 45
memory allocationmemory allocation 46
memory resources, editing 15
memory virtualization
hardware-assisted 32
software-based 32
memory affinity, NUMA nodes 113
memory compression 43
memory compression cache
disabling 43
enabling 43
set size 43
memory idle tax 37
memory reclamation 37
memory reliability 45
memory usage 44
migration recommendations 66
migration thresholds, DRS 66
monitoring, Storage I/O Control 50
monitoring software 85
multicore processors 22
N
NUMA
advanced attributes 117
AMD Opteron-based systems 110
challenges for operating systems 107
CPU affinity 113, 114
description 107
dynamic load balancing 109
home nodes 109
home nodes and initial placement 109
Index
VMware, Inc. 139