mirror of
git://sourceware.org/git/lvm2.git
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25b733809a
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.
47 lines
981 B
C
47 lines
981 B
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the LGPL.
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*
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*/
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#ifndef _LVM_VGCACHE_H
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#define _LVM_VGCACHE_H
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#include <sys/types.h>
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#include <asm/page.h>
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#include "dev-cache.h"
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#include "list.h"
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#include "uuid.h"
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#include "toolcontext.h"
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struct vgname_entry {
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struct list pvdevs;
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char *vgname;
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char vgid[ID_LEN + 1];
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struct format_type *fmt;
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};
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struct pvdev_list {
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struct list list;
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struct device *dev;
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};
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int vgcache_init();
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void vgcache_destroy();
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/* Return list of PVs in named VG */
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struct list *vgcache_find(const char *vg_name);
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struct format_type *vgcache_find_format(const char *vg_name);
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struct list *vgcache_find_by_vgid(const char *vgid);
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/* FIXME Temporary function */
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char *vgname_from_vgid(struct cmd_context *cmd, struct id *vgid);
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/* Add/delete a device */
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int vgcache_add(const char *vg_name, const char *vgid, struct device *dev,
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struct format_type *fmt);
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void vgcache_del(const char *vg_name);
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#endif
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