eike@donny:~$ sudo e2fsck -b 98304 /dev/mapper/vg--donny--disc--0--1-lv--storage 
e2fsck 1.42.9 (4-Feb-2014)
/dev/mapper/vg--donny--disc--0--1-lv--storage: recovering journal
e2fsck: unable to set superblock flags on /dev/mapper/vg--donny--disc--0--1-lv--storage


/dev/mapper/vg--donny--disc--0--1-lv--storage: ***** FILE SYSTEM WAS MODIFIED *****

/dev/mapper/vg--donny--disc--0--1-lv--storage: ********** WARNING: Filesystem still has errors *********