Check if your HDD mounted with quota.
Show us output command:
mount
here is what I get when I issue that command
rootfs on / type rootfs (rw)
/dev/root on / type ext3 (rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=writeback)
devtmpfs on /dev type devtmpfs (rw,relatime,size=2009760k,nr_inodes=502440,mode=755)
none on /proc type proc (rw,relatime)
none on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
devpts on /dev/pts type devpts (rw,relatime,mode=600,ptmxmode=000)
/dev/sda2 on /home type ext4 (rw,relatime,quota,usrquota,grpquota,data=ordered)
tmpfs on /dev/shm type tmpfs (rw,relatime)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
/dev/root on /var/named/chroot/etc/named type ext3 (rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=writeback)
/dev/root on /var/named/chroot/var/named type ext3 (rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=writeback)
/dev/root on /var/named/chroot/etc/named.conf type ext3 (rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=writeback)
/dev/root on /var/named/chroot/etc/named.rfc1912.zones type ext3 (rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=writeback)
/dev/root on /var/named/chroot/etc/rndc.key type ext3 (rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=writeback)
/dev/root on /var/named/chroot/usr/lib64/bind type ext3 (rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=writeback)
/dev/root on /var/named/chroot/etc/named.iscdlv.key type ext3 (rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=writeback)
/dev/root on /var/named/chroot/etc/named.root.key type ext3 (rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=writeback)
Thanks