DescribeReservedCacheNodes - Amazon ElastiCache

Request Parameters Response Elements Errors Examples See Also

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DescribeReservedCacheNodes

Returns information about reserved cache nodes for this account, or about a specified reserved cache node.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

CacheNodeType

The cache node type filter value. Use this parameter to show only those reservations matching the specified cache node type.

The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.

General purpose:
- Current generation:
  
  M7g node types: cache.m7g.large, cache.m7g.xlarge, cache.m7g.2xlarge, cache.m7g.4xlarge, cache.m7g.8xlarge, cache.m7g.12xlarge, cache.m7g.16xlarge
  
  Note
  For region availability, see Supported Node Types
  
  M6g node types (available only for Redis OSS engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward): cache.m6g.large, cache.m6g.xlarge, cache.m6g.2xlarge, cache.m6g.4xlarge, cache.m6g.8xlarge, cache.m6g.12xlarge, cache.m6g.16xlarge
  
  M5 node types: cache.m5.large, cache.m5.xlarge, cache.m5.2xlarge, cache.m5.4xlarge, cache.m5.12xlarge, cache.m5.24xlarge
  
  M4 node types: cache.m4.large, cache.m4.xlarge, cache.m4.2xlarge, cache.m4.4xlarge, cache.m4.10xlarge
  
  T4g node types (available only for Redis OSS engine version 5.0.6 onward and Memcached engine version 1.5.16 onward): cache.t4g.micro, cache.t4g.small, cache.t4g.medium
  
  T3 node types: cache.t3.micro, cache.t3.small, cache.t3.medium
  
  T2 node types: cache.t2.micro, cache.t2.small, cache.t2.medium
- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.)
  
  T1 node types: cache.t1.micro
  
  M1 node types: cache.m1.small, cache.m1.medium, cache.m1.large, cache.m1.xlarge
  
  M3 node types: cache.m3.medium, cache.m3.large, cache.m3.xlarge, cache.m3.2xlarge
Compute optimized:
- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.)
  
  C1 node types: cache.c1.xlarge
Memory optimized:
- Current generation:
  
  R7g node types: cache.r7g.large, cache.r7g.xlarge, cache.r7g.2xlarge, cache.r7g.4xlarge, cache.r7g.8xlarge, cache.r7g.12xlarge, cache.r7g.16xlarge
  
  Note
  For region availability, see Supported Node Types
  
  R6g node types (available only for Redis OSS engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward): cache.r6g.large, cache.r6g.xlarge, cache.r6g.2xlarge, cache.r6g.4xlarge, cache.r6g.8xlarge, cache.r6g.12xlarge, cache.r6g.16xlarge
  
  R5 node types: cache.r5.large, cache.r5.xlarge, cache.r5.2xlarge, cache.r5.4xlarge, cache.r5.12xlarge, cache.r5.24xlarge
  
  R4 node types: cache.r4.large, cache.r4.xlarge, cache.r4.2xlarge, cache.r4.4xlarge, cache.r4.8xlarge, cache.r4.16xlarge
- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.)
  
  M2 node types: cache.m2.xlarge, cache.m2.2xlarge, cache.m2.4xlarge
  
  R3 node types: cache.r3.large, cache.r3.xlarge, cache.r3.2xlarge, cache.r3.4xlarge, cache.r3.8xlarge

Additional node type info

All current generation instance types are created in Amazon VPC by default.
Valkey or Redis OSS append-only files (AOF) are not supported for T1 or T2 instances.
Valkey or Redis OSS Multi-AZ with automatic failover is not supported on T1 instances.
The configuration variables appendonly and appendfsync are not supported on Valkey, or on Redis OSS version 2.8.22 and later.

Type: String

Required: No

Duration

The duration filter value, specified in years or seconds. Use this parameter to show only reservations for this duration.

Valid Values: 1 | 3 | 31536000 | 94608000

Type: String

Required: No

Marker

An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by MaxRecords.

Type: String

Required: No

MaxRecords

The maximum number of records to include in the response. If more records exist than the specified MaxRecords value, a marker is included in the response so that the remaining results can be retrieved.

Default: 100

Constraints: minimum 20; maximum 100.

Type: Integer

Required: No

OfferingType

The offering type filter value. Use this parameter to show only the available offerings matching the specified offering type.

Type: String

Required: No

ProductDescription

The product description filter value. Use this parameter to show only those reservations matching the specified product description.

Type: String

Required: No

ReservedCacheNodeId

The reserved cache node identifier filter value. Use this parameter to show only the reservation that matches the specified reservation ID.

Type: String

Required: No

ReservedCacheNodesOfferingId

The offering identifier filter value. Use this parameter to show only purchased reservations matching the specified offering identifier.

Type: String

Required: No

Response Elements

The following elements are returned by the service.

Marker

Provides an identifier to allow retrieval of paginated results.

Type: String

ReservedCacheNodes.ReservedCacheNode.N

A list of reserved cache nodes. Each element in the list contains detailed information about one node.

Type: Array of ReservedCacheNode objects

Errors

For information about the errors that are common to all actions, see Common Errors.

InvalidParameterCombination

Two or more incompatible parameters were specified.

HTTP Status Code: 400

InvalidParameterValue

The value for a parameter is invalid.

HTTP Status Code: 400

ReservedCacheNodeNotFound

The requested reserved cache node was not found.

HTTP Status Code: 404

Examples