6.5.1

Virtual machine storage policy
Common rules
rule 1 and rule 2
Rule set 1
rule 1_1
rule 1_2
rule 1_3
Rule set 2
rule 2_1
rule 2_2
Rule set 3
rule 3_1
rule 3_2
rule 3_3
or or
About Rules
Rules are the basic elements of a VM storage policy. Each individual rule is a statement that describes a
single requirement for virtual machine storage and data services.
Typically, rules can be in one of the following categories: placement rules, including capability-based and
tag-based, and data services rules. Within a storage policy, individual rules are organized into collections
of rules, or rule sets.
Placement Rules: Capability-Based
Placement rules specify a particular storage requirement for the VM and enable SPBM to distinguish
compatible datastores among all datastores in the inventory. These rules also describe how the virtual
machine storage objects are allocated within the datastore to receive the required level of service. For
example, the rules can list Virtual Volumes as a destination and define the maximum recovery point
objective (RPO) for the Virtual Volumes objects. When you provision the virtual machine, these rules
guide the decision that SPBM makes about the virtual machine placement. SPBM finds the Virtual
Volumes datastores that can match the rules and satisfy the storage requirements of the virtual machine.
Placement Rules: Tag-Based
Tag-based rules reference datastore tags. These rules can define your VM placement, for example,
request as a target all datastores with the VMFS-Gold tag. You can also use the tag-based rules to fine-
tune your VM placement request further. For example, exclude datastores with the Palo Alto tag from the
list of your Virtual Volumes datastores.
vSphere Storage
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