User Manual

4-12
Chapter 4: Redfish Technology Pack
Name Type ReadOnly Desceiption
@odata.etag - - ETags provide the ability to conditionally retrieve or update a
resource. This value gives the timestamp at which the resource
properties have been initialized or modified.
According to
Redfish Specification 1.1.0
under
section
6.1.5 Etags
, we have “An ETag is a time
stamp value that changes when the underlying
object changes.” So the etag for all Collection
resources in Redfish will change if the etag of the
underlying instances change.
These ODATA properties should be present in each JSON response for all Redfish URI’s
mentioned in the document.
4.3.2 User Configurable Properties
Redfish allows the user to specify default values for some properties in the existing Redfish
Entities like the maximum number of records, overwrite policy in Log Services, sensor related
properties in Chassis Thermal, Voltage, Temperature, Power etc. and some properties in
all the services namely Event, Task, Session and Account Service. These properties can
be configured through redis commands as specified in the Configurable Properties section
in “
MegaRAC Redfish - How to Add OEM extensions (v1.1)
” document. User can also
configure the same through System Builder. Please refer MegaRAC Redfish - System Builder
User Guide (v1.1) to add these properties.
For a detailed list of properties, refer to the “
MegaRAC Redfish - How to Add OEM
extensions (v1.1)
” document.
4.3.3 Resource
The resource properties specified in this section are inherited by all API’S mentioned in this
document. The following are the different Resource schema properties.
Id and Name property of Resource Schema is mandated by all the URI’s.
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