6.7
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
- Persistent Memory
- 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
Create a Datastore Cluster
You can manage datastore cluster resources using Storage DRS.
Procedure
1 Browse to data centers in the vSphere Client.
2 Right-click the data center object and select New Datastore Cluster.
3 To complete the New Datastore Cluster wizard, follow the prompts.
4 Click Finish.
Enable and Disable Storage DRS
Storage DRS allows you to manage the aggregated resources of a datastore cluster. When Storage DRS
is enabled, it provides recommendations for virtual machine disk placement and migration to balance
space and I/O resources across the datastores in the datastore cluster.
When you enable Storage DRS, you enable the following functions.
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Space load balancing among datastores within a datastore cluster.
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I/O load balancing among datastores within a datastore cluster.
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Initial placement for virtual disks based on space and I/O workload.
The Enable Storage DRS check box in the Datastore Cluster Settings dialog box enables or disables all
of these components at once. If necessary, you can disable I/O-related functions of Storage DRS
independently of space balancing functions.
When you disable Storage DRS on a datastore cluster, Storage DRS settings are preserved. When you
enable Storage DRS, the settings for the datastore cluster are restored to the point where Storage DRS
was disabled.
Procedure
1 Browse to the datastore cluster in the vSphere Client.
2 Click the Configure tab and click Services.
3 Select Storage DRS and click Edit.
4 Select Turn ON vSphere DRS and click OK.
5 (Optional) To disable only I/O-related functions of Storage DRS, leaving space-related controls
enabled, perform the following steps.
a Under Storage DRS select Edit.
b Deselect the Enable I/O metric for Storage DRS check box and click OK.
vSphere Resource Management
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