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lvm2/lib/format_text/format-text.h
Alasdair Kergon 25b733809a Merge with text format branch.
Lots of changes/very little testing so far => there'll be bugs!

Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files.  Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.

Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).

e.g. metadata {
        dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}

Plenty of refinements still in the pipeline.
2002-04-24 18:20:51 +00:00

40 lines
1013 B
C

/*
* Copyright (C) 2001 Sistina Software (UK) Limited.
*
* This file is released under the LGPL.
*/
#ifndef _LVM_FORMAT_TEXT_H
#define _LVM_FORMAT_TEXT_H
#include "lvm-types.h"
#include "metadata.h"
#include "uuid-map.h"
/*
* Archives a vg config. 'retain_days' is the minimum number of
* days that an archive file must be held for. 'min_archives' is
* the minimum number of archives required to be kept for each
* volume group.
*/
int archive_vg(struct volume_group *vg,
const char *dir,
const char *desc,
uint32_t retain_days,
uint32_t min_archive);
/*
* Displays a list of vg backups in a particular archive directory.
*/
int archive_list(struct cmd_context *cmd, struct uuid_map *um,
const char *dir, const char *vg);
/*
* The text format can read and write a volume_group to a file.
*/
struct format_type *create_text_format(struct cmd_context *cmd);
void *create_text_context(struct format_type *fmt, const char *path,
const char *desc);
#endif