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Abort on low disk space
author
FSF BOFH
<sysadmin-nonrt@fsf.org>
Tue, 26 Jul 2011 23:07:46 +0000
(19:07 -0400)
committer
FSF BOFH
<sysadmin-nonrt@fsf.org>
Tue, 26 Jul 2011 23:07:46 +0000
(19:07 -0400)
wizbackup
patch
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diff --git
a/wizbackup
b/wizbackup
index f857379346de4bb5e38bace10e2d9e14c05e9598..816a66b82ff3641eaa40a41f3ebceb4ba97ca33c 100755
(executable)
--- a/
wizbackup
+++ b/
wizbackup
@@
-20,7
+20,6
@@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
-
if [ $# -lt 2 ]; then
echo "Usage: $0 SOURCE DEST [RSYNC_OPTS]"
exit 1
if [ $# -lt 2 ]; then
echo "Usage: $0 SOURCE DEST [RSYNC_OPTS]"
exit 1
@@
-33,10
+32,10
@@
set -u
# CONFIGURATION
#####################################################################
# CONFIGURATION
#####################################################################
-# Source
path
+# Source
rsync URL
SRC=$1; shift
SRC=$1; shift
-# D
ESTINATION DIRECTORY (must exists
)
+# D
estination directory (will be created if it doesn't exist
)
DEST=$1; shift
# NOTE: --timeout needs to be large enough: if a large dir tree don't change a lot of time can pass without I/O
DEST=$1; shift
# NOTE: --timeout needs to be large enough: if a large dir tree don't change a lot of time can pass without I/O
@@
-46,6
+45,9
@@
RSYNC_OPTS="-HAXa --stats --timeout 1800 --numeric-ids --delete --delete-exclude
# Number of saved snapshots
SNAPSHOTS=45
# Number of saved snapshots
SNAPSHOTS=45
+# Abort backup if the destination volume has less than these GBs free
+MIN_FREE_GB=10
+
RESULT=500
DATE=`date +"%Y%m%d"`
DEST="`echo $DEST | sed -e 's/\/$//'`"
RESULT=500
DATE=`date +"%Y%m%d"`
DEST="`echo $DEST | sed -e 's/\/$//'`"
@@
-125,7
+127,7
@@
do_link()
echo "$(date): Linking snapshot $DEST/$newest to $DEST/tmp"
# TODO: Creating the hardlinks takes a lot of time.
# Perhaps we could save time by recycling the oldest snapshot
echo "$(date): Linking snapshot $DEST/$newest to $DEST/tmp"
# TODO: Creating the hardlinks takes a lot of time.
# Perhaps we could save time by recycling the oldest snapshot
- cp -l
R
"$DEST/$newest" "$DEST/tmp"
+ cp -l
a
"$DEST/$newest" "$DEST/tmp"
RESULT=$?
if [ $RESULT -ne 0 ]; then
echo "$(date): Failed to setup tmp snapshot: $RESULT. Cleaning up."
RESULT=$?
if [ $RESULT -ne 0 ]; then
echo "$(date): Failed to setup tmp snapshot: $RESULT. Cleaning up."
@@
-138,6
+140,15
@@
do_link()
do_test()
{
# TODO: test for free space and free inodes in the $DEST filesystem
do_test()
{
# TODO: test for free space and free inodes in the $DEST filesystem
+ block_size=`stat --file-system --format "%S" "$DEST"`
+ free_blocks=`stat --file-system --format "%f" "$DEST"`
+ free_inodes=`stat --file-system --format "%d" "$DEST"`
+ free_gb=$((block_size * free_blocks / 1024 / 1024 / 1024))
+
+ if [ "$free_gb" -lt "$MIN_FREE_GB" ]; then
+ echo "$(date): Aborting due to insufficient free space ${free_gb}GB."
+ exit 670
+ fi
# Avoid clobbering the latest snapshot if the remote host does
# not allow us to connect
# Avoid clobbering the latest snapshot if the remote host does
# not allow us to connect
@@
-150,9
+161,9
@@
do_test()
fi
}
fi
}
-######################
-# M
AIN
-######################
+######################
################
+# M
ain
+######################
################
# make sure to be root
if (( `id -u` != 0 )); then { echo "Sorry, must be root. Exiting..."; exit; } fi
# make sure to be root
if (( `id -u` != 0 )); then { echo "Sorry, must be root. Exiting..."; exit; } fi