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Increase default zloop.sh vdev size

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The default 128M vdev size used by zloop.sh isn't always large
enough and can result in ENOSPC failures which suspend the pool.
Increase the default size to 512M and provide a -s option which
can be used to specify an alternate size.

This does increase the free space requirements to run zloop.sh.
However, since the vdevs are sparse 4x the space is not required.

Reviewed-by: Don Brady <don.brady@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6758
This commit is contained in:
Brian Behlendorf 2017-10-13 12:39:39 -07:00 committed by Tony Hutter
parent 1721f13e76
commit 4ed955e280
1 changed files with 5 additions and 3 deletions
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8
scripts/zloop.sh
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@ -37,7 +37,7 @@ DEFAULTCOREDIR=/var/tmp/zloop
function usage
{
echo -e "\n$0 [-t <timeout>] [-c <dump directory>]" \
echo -e "\n$0 [-t <timeout>] [ -s <vdev size> ] [-c <dump directory>]" \
"[ -- [extra ztest parameters]]\n" \
"\n" \
" This script runs ztest repeatedly with randomized arguments.\n" \
@ -49,6 +49,7 @@ function usage
" Options:\n" \
" -t Total time to loop for, in seconds. If not provided,\n" \
" zloop runs forever.\n" \
" -s Size of vdev devices.\n" \
" -f Specify working directory for ztest vdev files.\n" \
" -c Specify a core dump directory to use.\n" \
" -h Print this help message.\n" \
@ -151,9 +152,11 @@ function store_core
coredir=$DEFAULTCOREDIR
workdir=$DEFAULTWORKDIR
timeout=0
while getopts ":ht:c:f:" opt; do
size="512m"
while getopts ":ht:s:c:f:" opt; do
case $opt in
t ) [[ $OPTARG -gt 0 ]] && timeout=$OPTARG ;;
s ) [[ $OPTARG ]] && size=$OPTARG ;;
c ) [[ $OPTARG ]] && coredir=$OPTARG ;;
f ) [[ $OPTARG ]] && workdir=$(readlink -f "$OPTARG") ;;
h ) usage
@ -214,7 +217,6 @@ while [[ $timeout -eq 0 ]] || [[ $curtime -le $((starttime + timeout)) ]]; do
align=$(((RANDOM % 2) * 3 + 9))
runtime=$((RANDOM % 100))
passtime=$((RANDOM % (runtime / 3 + 1) + 10))
size=128m
zopt="$zopt -m $mirrors"
zopt="$zopt -r $raidz"