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/*
* Copyright (C) 2001 Sistina Software
*
* vgcreate is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* vgcreate is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LVM; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "tools.h"
/* FIXME From config file? */
#define DEFAULT_PV 256
#define DEFAULT_LV 256
#define DEFAULT_EXTENT 4096 /* In KB */
int vgcreate(struct cmd_context *cmd, int argc, char **argv)
{
size_t max_lv, max_pv;
uint32_t extent_size;
char *vg_name;
char vg_path[PATH_MAX];
struct volume_group *vg;
if (!argc) {
log_error("Please provide volume group name and "
"physical volumes");
return EINVALID_CMD_LINE;
}
if (argc == 1) {
log_error("Please enter physical volume name(s)");
return EINVALID_CMD_LINE;
}
vg_name = argv[0];
max_lv = arg_uint_value(cmd, maxlogicalvolumes_ARG, DEFAULT_LV);
max_pv = arg_uint_value(cmd, maxphysicalvolumes_ARG, DEFAULT_PV);
/* Units of 512-byte sectors */
extent_size =
arg_uint_value(cmd, physicalextentsize_ARG, DEFAULT_EXTENT) * 2;
if (max_lv < 1) {
log_error("maxlogicalvolumes too low");
return EINVALID_CMD_LINE;
}
if (max_pv < 1) {
log_error("maxphysicalvolumes too low");
return EINVALID_CMD_LINE;
}
/* Strip dev_dir if present */
if (!strncmp(vg_name, cmd->dev_dir, strlen(cmd->dev_dir)))
vg_name += strlen(cmd->dev_dir);
snprintf(vg_path, PATH_MAX, "%s%s", cmd->dev_dir, vg_name);
if (path_exists(vg_path)) {
log_error("%s: already exists in filesystem", vg_path);
return ECMD_FAILED;
}
if (!validate_name(vg_name)) {
log_error("New volume group name \"%s\" has invalid characters",
vg_name);
return ECMD_FAILED;
}
/* Create the new VG */
if (!(vg = vg_create(cmd, vg_name, extent_size, max_pv, max_lv,
argc - 1, argv + 1)))
return ECMD_FAILED;
if (max_lv != vg->max_lv)
log_error("Warning: Setting maxlogicalvolumes to %d",
vg->max_lv);
if (max_pv != vg->max_pv)
log_error("Warning: Setting maxphysicalvolumes to %d",
vg->max_pv);
if (!lock_vol(cmd, "", LCK_VG_WRITE)) {
log_error("Can't get lock for orphan PVs");
return ECMD_FAILED;
}
if (!lock_vol(cmd, vg_name, LCK_VG_WRITE | LCK_NONBLOCK)) {
log_error("Can't get lock for %s", vg_name);
unlock_vg(cmd, "");
return ECMD_FAILED;
}
if (!archive(vg)) {
unlock_vg(cmd, vg_name);
unlock_vg(cmd, "");
return ECMD_FAILED;
}
/* Store VG on disk(s) */
if (!vg_write(vg)) {
unlock_vg(cmd, vg_name);
unlock_vg(cmd, "");
return ECMD_FAILED;
}
unlock_vg(cmd, vg_name);
unlock_vg(cmd, "");
backup(vg);
log_print("Volume group \"%s\" successfully created", vg->name);
return 0;
}
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