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NVME-UNCOR(1) NVMe Manual NVME-UNCOR(1)

NAME

nvme-write-uncor - Send an NVMe write uncorrectable command, return results

SYNOPSIS

nvme [<global-options>] write-uncor <device>


                        [--start-block=<slba> | -s <slba>]


                        [--block-count=<nlb> | -c <nlb>]


                        [--namespace-id=<nsid> | -n <nsid>]


                        [--dir-type=<dtype> | -T <dtype>]


                        [--dir-spec=<dspec> | -S <dspec>]

DESCRIPTION

The Write Uncorrectable command is used to invalidate a range of logical blocks.

OPTIONS

-s <slba>, --start-block=<slba>

Start block.

-c, --block-count=<nlb>

Number of logical blocks to write uncorrectable.

-n <nsid>, --namespace-id=<nsid>

Namespace ID use in the command.

-T <dtype>, --dir-type=<dtype>

Directive type

-S <dspec>, --dir-spec=<dspec>

Directive specific

GLOBAL OPTIONS

The following options are defined at the top-level nvme command and are available to this subcommand:

--dry-run

Print the command that would be executed, but do not actually execute it.

--no-ioctl-probing

Disable probing for 64-bit IOCTL support.

--no-retries

Disable retry logic on transient errors.

-o <fmt>, --output-format=<fmt>

Set the reporting format to normal, tabular, 'json, or binary. Only one output format may be used at a time.

--output-format-version=<version>

Select the output format version. Version 1 uses the original field naming, while version 2 (default) provides more consistent and script-friendly field names.

--timeout=<ms>

Set the timeout for the command in milliseconds.

-v, --verbose

Increase the level of detail in the output. May be specified multiple times to further increase verbosity.

These options can also be set as machine-wide defaults in nvme-cli.conf(5). A command-line flag always overrides the file.

EXAMPLES

No examples yet.

NVME

Part of the nvme-user suite

07/31/2026 NVMe