# pool.ddt_prefetch

Prefetch DDT entries in pool pool_name.

Deprecated since version Use: pool.prefetch instead, which prefetches both DDT and BRT metadata.

This method is a job.

DEPRECATED: this method is scheduled to be removed in v26.

Type: object

##

Type: array
No Additional Items

#### Tuple Validation

##### Parameter 1: pool_name

#### pool_name

Type: string

Name of the pool to prefetch deduplication table entries for.

Must be at least `1` characters long

##

#### Result

Type: null

Returns `null` on successful deduplication table prefetch.

Required roles: POOL_WRITE