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.TH "SYSTEMD\-STORAGE\-BLOCK@\&.SERVICE" "8" "" "systemd 261" "systemd-storage-block@.service"
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.SH "NAME"
systemd-storage-block@.service, systemd-storage-block.socket, systemd-storage-block \- Storage provider exposing local block devices as storage volumes
.SH "SYNOPSIS"
.PP
systemd\-storage\-block@\&.service
.PP
systemd\-storage\-block\&.socket
.SH "DESCRIPTION"
.PP
systemd\-storage\-block@\&.service
is a system service that implements the
\fBio\&.systemd\&.StorageProvider\fR
\m[blue]\fBVarlink\fR\m[]\&\s-2\u[1]\d\s+2
interface, exposing the system\*(Aqs block devices (such as disks, partitions, and device\-mapper nodes) as storage volumes that may be acquired by other programs as file descriptors\&.
.PP
The service is socket\-activated via
systemd\-storage\-block\&.socket, which listens on the AF_UNIX socket
/run/systemd/io\&.systemd\&.StorageProvider/block\&. The socket directory
/run/systemd/io\&.systemd\&.StorageProvider/
is the well\-known location where storage providers register, see
\fBstoragectl\fR(1)
for an enumeration tool\&.
.PP
See also
\fBsystemd-storage-fs@.service\fR(8)
for a complementary implementation that exposes regular files and directories from a backing file system\&.
.SH "VOLUMES"
.PP
The volumes exposed via the provider are identified by an absolute path (which must begin with
/dev/), i\&.e\&. as a kernel block device node such as
/dev/sda
or
/dev/disk/by\-id/\&...\&. Volume names that are not normalized or that do not begin with
/dev/
are not accepted\&.
.SH "OPTIONS"
.PP
The following options are understood:
.PP
\fB\-h\fR, \fB\-\-help\fR
.RS 4
Print a short help text and exit\&.
.RE
.PP
\fB\-\-version\fR
.RS 4
Print a short version string and exit\&.
.RE
.SH "FILES"
.PP
/run/systemd/io\&.systemd\&.StorageProvider/block
.RS 4
AF_UNIX socket the service listens on\&. This is the canonical location for the
"block"
storage provider, and is enumerated by
\fBstoragectl providers\fR\&.
.sp
Added in version 261\&.
.RE
.SH "SEE ALSO"
.PP
\fBsystemd\fR(1), \fBstoragectl\fR(1), \fBsystemd-storage-fs@.service\fR(8)
.SH "NOTES"
.IP " 1." 4
Varlink
.RS 4
\%https://varlink.org/
.RE