Keep hitting umount and fsck on a disk until it's clean.

keep-trying-to-fsck.sh

#!/bin/bash
#
ext=100

DEVICE=$1

# Can get the devices / pvcs with this.
#thingies=$( mount | grep ro,|grep pvc| awk '{split($3,path,/\//); print $1 "|" path[9]}')
#for thingie in $thingies
#do
#       IFS="|" read -r device pvc <<< $thingie
#       echo $pvc
#done

echo $DEVICE
until [ $ext -lt 2 ]
do
	umount $DEVICE ; fsck.ext4 -p $DEVICE
	ext=$?
	echo $ext
	sleep 1
done