.TH "nvme_dsm" 9 "nvme_dsm" "April 2022" "libnvme API manual" LINUX
.SH NAME
nvme_dsm \- Send an nvme data set management command
.SH SYNOPSIS
.B "int" nvme_dsm
.BI "(struct nvme_dsm_args *args "  ");"
.SH ARGUMENTS
.IP "args" 12
\fIstruct nvme_dsm_args\fP argument structure
.SH "DESCRIPTION"
The Dataset Management command is used by the host to indicate attributes
for ranges of logical blocks. This includes attributes like frequency that
data is read or written, access size, and other information that may be used
to optimize performance and reliability, and may be used to
deallocate/unmap/trim those logical blocks.
.SH "RETURN"
The nvme command status if a response was received (see
\fIenum nvme_status_field\fP) or -1 with errno set otherwise.