mirror of
git://sourceware.org/git/lvm2.git
synced 2024-10-27 18:55:19 +03:00
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.
130 lines
3.3 KiB
C
130 lines
3.3 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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void pvdisplay_single(struct cmd_context *cmd, struct physical_volume *pv);
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int pvdisplay(struct cmd_context *cmd, int argc, char **argv)
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{
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int opt = 0;
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struct list *pvh, *pvs;
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struct physical_volume *pv;
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if (arg_count(cmd, colon_ARG) && arg_count(cmd, maps_ARG)) {
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log_error("Option -v not allowed with option -c");
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return EINVALID_CMD_LINE;
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}
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if (argc) {
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log_very_verbose("Using physical volume(s) on command line");
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for (; opt < argc; opt++) {
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if (!(pv = pv_read(cmd, argv[opt]))) {
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log_error("Failed to read physical "
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"volume \"%s\"", argv[opt]);
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continue;
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}
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pvdisplay_single(cmd, pv);
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}
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} else {
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log_verbose("Scanning for physical volume names");
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if (!(pvs = get_pvs(cmd)))
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return ECMD_FAILED;
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list_iterate(pvh, pvs)
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pvdisplay_single(cmd, list_item(pvh, struct pv_list)->pv);
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}
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return 0;
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}
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void pvdisplay_single(struct cmd_context *cmd, struct physical_volume *pv)
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{
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char *sz;
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uint64_t size;
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const char *pv_name = dev_name(pv->dev);
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if (!*pv->vg_name)
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size = pv->size;
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else
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size = (pv->pe_count - pv->pe_alloc_count) * pv->pe_size;
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if (arg_count(cmd, short_ARG)) {
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sz = display_size(size / 2, SIZE_SHORT);
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log_print("Device \"%s\" has a capacity of %s", pv_name, sz);
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dbg_free(sz);
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return;
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}
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if (pv->status & EXPORTED_VG)
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log_print("Physical volume \"%s\" of volume group \"%s\" "
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"is exported", pv_name, pv->vg_name);
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/********* FIXME
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log_error("no physical volume identifier on \"%s\"" , pv_name);
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*********/
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if (!pv->vg_name) {
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log_print("\"%s\" is a new physical volume of \"%s\"",
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pv_name, (sz = display_size(size / 2, SIZE_SHORT)));
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dbg_free(sz);
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}
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/* FIXME: Check active - no point?
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log_very_verbose("checking physical volume activity" );
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pv_check_active ( pv->vg_name, pv->pv_name)
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pv_status ( pv->vg_name, pv->pv_name, &pv)
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*/
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/* FIXME: Check consistency - do this when reading metadata BUT trigger mesgs
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log_very_verbose("checking physical volume consistency" );
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ret = pv_check_consistency (pv)
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*/
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if (arg_count(cmd, colon_ARG)) {
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pvdisplay_colons(pv);
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return;
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}
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pvdisplay_full(pv);
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if (!arg_count(cmd, maps_ARG))
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return;
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/******* FIXME
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if (pv->pe_alloc_count) {
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if (!(pv->pe = pv_read_pe(pv_name, pv)))
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goto pvdisplay_device_out;
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if (!(lvs = pv_read_lvs(pv))) {
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log_error("Failed to read LVs on \"%s\"", pv->pv_name);
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goto pvdisplay_device_out;
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}
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pv_display_pe_text(pv, pv->pe, lvs);
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} else
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log_print("no logical volume on physical volume \"%s\"",
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pv_name);
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**********/
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return;
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}
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