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lvm2/lib/format_text/archiver.h
Milan Broz dfbc015c69 Fix remote metadata backup for clvmd
Run backup of metadata on remote nodes in the
same place like local node - when calling backup().

Introduce backup_locally() which calls only
local backup if needed.

Remote backup is now trigerred by LCK_VG_BACKUP flag
combination (special VG lock).

This lock type will call check_current_backup()
(including backup_locally() call) and updates
metadata on all nodes.

(Patch fixes non-functional remote backup,
current call during VG lock never triggers.)
2009-04-22 09:39:45 +00:00

64 lines
2.4 KiB
C

/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _LVM_TOOL_ARCHIVE_H
#define _LVM_TOOL_ARCHIVE_H
#include "metadata-exported.h"
/*
* There are two operations that come under the general area of
* backups. 'Archiving' occurs just before a volume group
* configuration is changed. The user may configure when
* archived files are expired. Typically archives will be stored
* in /etc/lvm/archive.
*
* A 'backup' is a redundant copy of the *current* volume group
* configuration. As such it should be taken just after the
* volume group is changed. Only 1 backup file will exist.
* Typically backups will be stored in /etc/lvm/backups.
*/
int archive_init(struct cmd_context *cmd, const char *dir,
unsigned int keep_days, unsigned int keep_min,
int enabled);
void archive_exit(struct cmd_context *cmd);
void archive_enable(struct cmd_context *cmd, int flag);
int archive(struct volume_group *vg);
int archive_display(struct cmd_context *cmd, const char *vg_name);
int archive_display_file(struct cmd_context *cmd, const char *file);
int backup_init(struct cmd_context *cmd, const char *dir, int enabled);
void backup_exit(struct cmd_context *cmd);
void backup_enable(struct cmd_context *cmd, int flag);
int backup(struct volume_group *vg);
int backup_locally(struct volume_group *vg);
int backup_remove(struct cmd_context *cmd, const char *vg_name);
struct volume_group *backup_read_vg(struct cmd_context *cmd,
const char *vg_name, const char *file);
int backup_restore_vg(struct cmd_context *cmd, struct volume_group *vg);
int backup_restore_from_file(struct cmd_context *cmd, const char *vg_name,
const char *file);
int backup_restore(struct cmd_context *cmd, const char *vg_name);
int backup_to_file(const char *file, const char *desc, struct volume_group *vg);
void check_current_backup(struct volume_group *vg);
#endif