1.\" SPDX-License-Identifier: CDDL-1.0 2.\" 3.\" CDDL HEADER START 4.\" 5.\" The contents of this file are subject to the terms of the 6.\" Common Development and Distribution License (the "License"). 7.\" You may not use this file except in compliance with the License. 8.\" 9.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10.\" or http://www.opensolaris.org/os/licensing. 11.\" See the License for the specific language governing permissions 12.\" and limitations under the License. 13.\" 14.\" When distributing Covered Code, include this CDDL HEADER in each 15.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16.\" If applicable, add the following below this CDDL HEADER, with the 17.\" fields enclosed by brackets "[]" replaced with your own identifying 18.\" information: Portions Copyright [yyyy] [name of copyright owner] 19.\" 20.\" CDDL HEADER END 21.\" 22.\" 23.\" Copyright (c) 2023, Klara Inc. 24.\" 25.Dd February 14, 2024 26.Dt ZPOOL-PREFETCH 8 27.Os 28. 29.Sh NAME 30.Nm zpool-prefetch 31.Nd Loads specific types of data for the given pool 32.Sh SYNOPSIS 33.Nm zpool 34.Cm prefetch 35.Fl t Ar type 36.Ar pool 37.Sh DESCRIPTION 38.Bl -tag -width Ds 39.It Xo 40.Nm zpool 41.Cm prefetch 42.Fl t Li ddt 43.Ar pool 44.Xc 45Prefetch data of a specific type for the given pool; specifically the DDT, 46which will improve write I/O performance when the DDT is resident in the ARC. 47.El 48