thin-provisioning-tools/man8/era_invalidate.8
2017-09-18 16:10:56 +01:00

55 lines
1.3 KiB
Groff

.TH ERA_INVALIDATE 8 "Thin Provisioning Tools" "Red Hat, Inc." \" -*- nroff -*-
.SH NAME
era_invalidate \- Provide a list of blocks that have changed since a particular era.
.SH SYNOPSIS
.B era_invalidate
.RB [ options ]
.I {device|file}
.SH DESCRIPTION
.B era_invalidate
Examines era metadata and lists blocks that may have changed since a given era.
This tool cannot be run on live metadata unless the \fB\-\-metadata\-snap\fP option is used.
.SH OPTIONS
.IP "\fB\-h, \-\-help\fP"
Print help and exit.
.IP "\fB\-V, \-\-version\fP"
Output version information and exit.
.IP "\fB\-o <output file>\fP"
Write output to a file rather than
.B stdout
.
.IP "\fB\-\-metadata\-snapshot\fP"
Use the metadata snapshot rather than the current superblock.
.IP "\fB\-\-written-since {era}\fP"
Blocks written since the given era will be listed.
.SH EXAMPLE
List the blocks that may have been written since the beginning of era
13 on the metadata device /dev/vg/metadata.
.sp
.B era_invalidate --written-since 13 /dev/vg/metadata
The device may not be actively used by the target
when running.
.SH DIAGNOSTICS
.B era_invalidate
returns an exit code of 0 for success or 1 for error (eg, metadata corruption).
.SH SEE ALSO
.B era_check(8),
.B era_dump(8),
.B era_repair(8),
.B era_restore(8)
.SH AUTHOR
Joe Thornber <ejt@redhat.com>