mirror of
git://sourceware.org/git/lvm2.git
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248 lines
6.8 KiB
C
248 lines
6.8 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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/* FIXME Temporarily to get at MAX_PV etc. Move these tests elsewhere */
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/* FIXME Also PE_SIZE stuff */
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#include "../lib/format1/disk-rep.h"
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int vgcreate(int argc, char **argv)
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{
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int opt;
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int max_lv = MAX_LV - 1;
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int max_pv = MAX_PV - 1;
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int min_pv_index = 0;
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ulong max_pv_size = 0;
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ulong min_pv_size = -1;
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/* long pe_size = LVM_DEFAULT_PE_SIZE; */
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char *dummy;
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char *vg_name;
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struct volume_group *vg;
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struct physical_volume *pv;
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struct list_head *pvh;
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struct pv_list *pvl;
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char *pv_name = NULL;
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if (arg_count(maxlogicalvolumes_ARG))
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max_lv = arg_int_value(maxlogicalvolumes_ARG, 0);
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if (arg_count(maxphysicalvolumes_ARG))
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max_pv = arg_int_value(maxphysicalvolumes_ARG, 0);
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if (arg_count(physicalextentsize_ARG)) {
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/* FIXME - Move?
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pe_size = arg_int_value(physicalextentsize_ARG, 0);
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pe_size = ((unsigned long long) pe_size * 1024) / SECTOR_SIZE;
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if (vg_check_pe_size(pe_size) < 0) {
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log_error("Invalid physical extent size %s",
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display_size(sectors_to_k(pe_size),
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SIZE_SHORT));
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log_error("Must be power of 2 and between %s and %s",
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display_size(sectors_to_k(LVM_MIN_PE_SIZE),
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SIZE_SHORT),
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display_size(sectors_to_k(LVM_MAX_PE_SIZE),
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SIZE_SHORT));
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return EINVALID_CMD_LINE;
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}
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*/
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}
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if (!argc) {
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log_error("Please provide volume group name and "
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"physical volumes");
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return EINVALID_CMD_LINE;
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}
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if (argc == 1) {
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log_error("Please enter physical volume name(s)");
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return EINVALID_CMD_LINE;
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}
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vg_name = argv[0];
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argv++;
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argc--;
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if ((vg = ios->vg_read(ios, vg_name))) {
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log_error("Volume group already exists: please use a "
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"different name");
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return ECMD_FAILED;
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}
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/***** FIXME: Can we be free of this restriction?
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log_verbose("Counting all existing volume groups");
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if (vg_count >= MAX_VG) {
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log_error("Maximum volume group count of %d reached", MAX_VG);
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return ECMD_FAILED;
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}
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*****/
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if (!(vg = vg_create())) {
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return ECMD_FAILED;
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}
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/* check, if PVs are all defined and new */
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log_verbose("Ensuring all physical volumes specified are new");
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for (; opt < argc; opt++) {
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pv_name = argv[opt];
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if (!(pv = ios->pv_read(ios, pv_name))) {
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log_error("Physical volume %s not found", pv_name);
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return ECMD_FAILED;
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}
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/* FIXME Must PV be ACTIVE & ALLOCATABLE? */
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log_verbose("Checking physical volume %s", pv_name);
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log_verbose("Getting size of physical volume %s", pv_name);
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log_verbose("Physical volume %s is %s 512-byte sectors",
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pv_name, pv->size);
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log_verbose("Checking physical volume %s is new", pv_name);
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if (*pv->vg_name) {
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log_error("%s already belongs to volume group %s",
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pv_name, pv->vg_name);
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}
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log_verbose("Checking for identical physical volumes "
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"on command line");
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if ((pvh = find_pv_in_vg(vg, pv_name))) {
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log_error("Physical volume %s listed multiple times",
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pv_name);
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return ECMD_FAILED;
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}
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if (max_pv_size < pv->size)
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max_pv_size = pv->size;
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if (min_pv_size > pv->size) {
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min_pv_size = pv->size;
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min_pv_index = opt;
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}
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if (!(pvl = dbg_malloc(sizeof(struct pv_list)))) {
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log_error("pv_list allocation failed");
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return ECMD_FAILED;
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}
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pvl->pv = *pv;
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list_add(&pvl->list, &vg->pvs);
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vg->pv_count++;
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}
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log_verbose("%d physical volume(s) will be inserted into "
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"volume group %s", vg->pv_count, vg->name);
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log_verbose("Maximum of %d physical volumes", max_pv);
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if (max_pv < 0 || max_pv <= vg->pv_count || max_pv > MAX_PV) {
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log_error("Invalid maximum physical volumes -p %d", max_pv);
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return EINVALID_CMD_LINE;
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}
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vg->max_pv = max_pv;
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log_verbose("Maximum of %d logical volumes", max_lv);
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if (max_lv < 0 || max_lv > MAX_LV) {
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log_error("Invalid maximum logical volumes -l %d", max_lv);
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return EINVALID_CMD_LINE;
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}
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vg->max_lv = max_lv;
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/******** FIXME: Enforce these checks internally within vg_write?
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size = (LVM_PV_DISK_SIZE + LVM_VG_DISK_SIZE + max_pv * NAME_LEN + max_lv * sizeof(lv_t));
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if (size / SECTOR_SIZE > min_pv_size / 5) {
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log_error("More than 20%% [%d KB] of physical volume %s with %u KB would be used", size,
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pvp[min_pv_index]->pv_name, pvp[min_pv_index]->pv_size / 2);
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return LVM_E_PV_TOO_SMALL;
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}
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************/
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/************ FIXME More work required here
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************ Check extent sizes compatible and set up pe's?
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if (
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(ret =
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vg_setup_for_create(vg_name, &vg, pvp, pe_size, max_pv,
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max_lv)) < 0) {
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if (ret == -LVM_EVG_SETUP_FOR_CREATE_PV_SIZE_MIN) {
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log_error
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("%d physical volume%s too small for physical extent size of %s",
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count_sav, count_sav > 1 ? "s" : "", vg_name);
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log_error
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("Minimum physical volume at this physical extent size is %s",
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(dummy =
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display_size(sectors_to_k(vg.pe_size) *
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LVM_PE_SIZE_PV_SIZE_REL,
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SIZE_SHORT)));
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dbg_free(dummy);
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} else if (ret == -LVM_EVG_SETUP_FOR_CREATE_PV_SIZE_MAX) {
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log_error
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("%d physical volume%s too large for physical extent size of %s",
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count_sav, count_sav > 1 ? "s" : "", vg_name);
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log_error
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("Maximum physical volume at this physical extent size is %s",
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(dummy =
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display_size(sectors_to_k(vg.pe_size) *
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LVM_PE_T_MAX, SHORT)));
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dbg_free(dummy);
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}
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return ECMD_FAILED;
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}
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************/
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if (arg_count(physicalextentsize_ARG) == 0) {
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log_print("Using default physical extent size %s",
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(dummy = display_size(pe_size / 2, SIZE_SHORT)));
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dbg_free(dummy);
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}
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log_print("Maximum logical volume size is %s",
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(dummy = display_size(LVM_LV_SIZE_MAX(&vg) / 2, SIZE_LONG)));
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dbg_free(dummy);
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vg_remove_dir_and_group_and_nodes(vg_name);
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vg->status |= ACTIVE;
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/* store vg on disk(s) */
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if (ios->vg_write(ios, vg)) {
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return ECMD_FAILED;
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}
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/******* FIXME /dev/vg???
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log_verbose("Creating volume group directory %s%s", prefix, vg_name);
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if (vg_create_dir_and_group(&vg)) {
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return ECMD_FAILED;
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}
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*********/
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/* FIXME Activate it */
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/******* FIXME backups
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if ((ret = do_autobackup(vg_name, &vg)))
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return ret;
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******/
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log_print("Volume group %s successfully created and activated",
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vg_name);
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return 0;
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}
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