# `IndicesDataStreamsStatsResponse` [interface-IndicesDataStreamsStatsResponse]

| Name | Type | Description |
| - | - | - |
| `_shards` | [ShardStatistics](./ShardStatistics.md) | Contains information about shards that attempted to execute the request. |
| `backing_indices` | [integer](./integer.md) | Total number of backing indices for the selected data streams. |
| `data_stream_count` | [integer](./integer.md) | Total number of selected data streams. |
| `data_streams` | [IndicesDataStreamsStatsDataStreamsStatsItem](./IndicesDataStreamsStatsDataStreamsStatsItem.md)[] | Contains statistics for the selected data streams. |
| `total_store_size_bytes` | [long](./long.md) | Total size, in bytes, of all shards for the selected data streams. |
| `total_store_sizes` | [ByteSize](./ByteSize.md) | Total size of all shards for the selected data streams. This property is included only if the `human` query parameter is `true` |