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lvm2/test/t-lvcreate-usage.sh
Milan Broz 7f436a0f39 Fix lv_count when manipulating with snapshots and max_lv is set.
Patch fixes these problems:
 - during the snapshot creation process, it needs create 2 LVs,
   one is cow, second becomes snapshot.
   If the code fails in vg_add_snapshot, code lvcreate will not remove
   LV cow volume.

 - if max_lv is set and VG contains snapshot, it can happen that
   during the activation lv_count is temporarily increased over the limit
   and VG metadata are not properly processed
   see https://bugzilla.redhat.com/show_bug.cgi?id=490298

 - vgcfgrestore alows restore with max_lv set to lower valuer that actual
   LV count. This later leads to situation that max_lv is completely ignored.

 - vgck doesn't call vg_validate(). It should at least try:-)

Signed-off-by: Milan Broz <mbroz@redhat.com>
2009-03-16 14:34:57 +00:00

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#!/bin/sh
# Copyright (C) 2008 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# 'Exercise some lvcreate diagnostics'
. ./test-utils.sh
aux prepare_pvs 2
aux pvcreate --metadatacopies 0 $dev1
vgcreate -cn $vg $devs
# "lvcreate rejects repeated invocation (run 2 times) (bz178216)"
lvcreate -n $lv -l 4 $vg
not lvcreate -n $lv -l 4 $vg
lvremove -ff $vg/$lv
# "lvcreate rejects a negative stripe_size"
not lvcreate -L 64M -n $lv -i2 --stripesize -4 $vg 2>err;
grep "^ Negative stripesize is invalid\$" err
# 'lvcreate rejects a too-large stripesize'
not lvcreate -L 64M -n $lv -i2 --stripesize 4294967291 $vg 2>err
grep "^ Stripe size cannot be larger than 512.00 GB\$" err
# 'lvcreate w/single stripe succeeds with diagnostics to stdout'
lvcreate -L 64M -n $lv -i1 --stripesize 4 $vg >out 2>err
grep "^ Redundant stripes argument: default is 1\$" out
grep "^ Ignoring stripesize argument with single stripe\$" out
lvdisplay $vg
lvremove -ff $vg
# 'lvcreate w/default (64KB) stripe size succeeds with diagnostics to stdout'
lvcreate -L 64M -n $lv -i2 $vg > out
grep "^ Using default stripesize" out
lvdisplay $vg
check_lv_field_ $vg/$lv stripesize "64.00K"
lvremove -ff $vg
# 'lvcreate rejects an invalid number of stripes'
not lvcreate -L 64M -n $lv -i129 $vg 2>err
grep "^ Number of stripes (129) must be between 1 and 128\$" err
# 'lvcreate rejects an invalid regionsize (bz186013)'
not lvcreate -L 64M -n $lv -R0 $vg 2>err
grep "Non-zero region size must be supplied." err
# The case on lvdisplay output is to verify that the LV was not created.
# 'lvcreate rejects an invalid stripe size'
not lvcreate -L 64M -n $lv -i2 --stripesize 3 $vg 2>err
grep "^ Invalid stripe size 3\.00 KB\$" err
case $(lvdisplay $vg) in "") true ;; *) false ;; esac
# Setting max_lv works. (bz490298)
vgchange -l 4 $vg
lvcreate -l1 -n $lv1 $vg
lvcreate -l1 -s -n $lv2 $vg/$lv1
lvcreate -l1 -n $lv3 $vg
not lvcreate -l1 -n $lv4 $vg
vgs $vg
lvremove -ff $vg
vgchange -l 0 $vg