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.
104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/*
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* Copyright (C) 2001 Sistina Software
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*
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* LVM is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* LVM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LVM; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#include "tools.h"
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static int vgdisplay_single(struct cmd_context *cmd, const char *vg_name);
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int vgdisplay(struct cmd_context *cmd, int argc, char **argv)
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{
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if (arg_count(cmd, colon_ARG) && arg_count(cmd, short_ARG)) {
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log_error("Option -c is not allowed with option -s");
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return EINVALID_CMD_LINE;
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}
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if (argc && arg_count(cmd, activevolumegroups_ARG)) {
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log_error("Option -A is not allowed with volume group names");
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return EINVALID_CMD_LINE;
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}
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/* FIXME -D disk_ARG is now redundant */
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/********* FIXME: Do without this - or else 2(+) passes!
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Figure out longest volume group name
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for (c = opt; opt < argc; opt++) {
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len = strlen(argv[opt]);
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if (len > max_len)
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max_len = len;
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}
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**********/
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process_each_vg(cmd, argc, argv, LCK_VG_READ, &vgdisplay_single);
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/******** FIXME Need to count number processed
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Add this to process_each_vg if arg_count(cmd,activevolumegroups_ARG) ?
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if (opt == argc) {
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log_print("no ");
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if (arg_count(cmd,activevolumegroups_ARG))
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printf("active ");
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printf("volume groups found\n\n");
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return LVM_E_NO_VG;
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}
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************/
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return 0;
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}
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static int vgdisplay_single(struct cmd_context *cmd, const char *vg_name)
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{
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struct volume_group *vg;
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/* FIXME Do the active check here if activevolumegroups_ARG ? */
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log_very_verbose("Finding volume group \"%s\"", vg_name);
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if (!(vg = vg_read(cmd, vg_name))) {
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log_error("Volume group \"%s\" doesn't exist", vg_name);
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return ECMD_FAILED;
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}
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if (vg->status & EXPORTED_VG)
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log_print("WARNING: volume group \"%s\" is exported", vg_name);
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if (arg_count(cmd, colon_ARG)) {
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vgdisplay_colons(vg);
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return 0;
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}
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if (arg_count(cmd, short_ARG)) {
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vgdisplay_short(vg);
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return 0;
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}
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vgdisplay_full(vg); /* was vg_show */
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if (arg_count(cmd, verbose_ARG)) {
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vgdisplay_extents(vg);
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process_each_lv_in_vg(cmd, vg, &lvdisplay_full);
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log_print("--- Physical volumes ---");
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process_each_pv_in_vg(cmd, vg, &pvdisplay_short);
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}
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return 0;
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}
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