server:data root# pwd
/usr/local/mysql/data
server:data root# ls -al
total 336000
drwxr-x---   12 _mysql  _mysql       384 Mar 21 23:02 #innodb_temp
drwxr-x---   31 _mysql  _mysql       992 Mar 21 23:04 .
drwxr-xr-x   18 root    wheel        576 Mar 21 22:56 ..
lrwxr-xr-x    1 _mysql  _mysql        49 Mar 21 23:02 RemoteDBTest -> /Volumes/Big_Data/SQL-Databases-LIVE/RemoteDBTest
drwxr-x---    3 _mysql  _mysql        96 Mar 21 23:05 SecondSampleDB
-rw-r-----    1 _mysql  _mysql        56 Mar 21 22:56 auto.cnf
-rw-r-----    1 _mysql  _mysql       636 Mar 21 22:56 binlog.000001
-rw-r-----    1 _mysql  _mysql       819 Mar 21 23:00 binlog.000002
-rw-r-----    1 _mysql  _mysql       913 Mar 21 23:06 binlog.000003
-rw-r-----    1 _mysql  _mysql        48 Mar 21 23:02 binlog.index
-rw-------    1 _mysql  _mysql      1680 Mar 21 22:56 ca-key.pem
-rw-r--r--    1 _mysql  _mysql      1112 Mar 21 22:56 ca.pem
-rw-r--r--    1 _mysql  _mysql      1112 Mar 21 22:56 client-cert.pem
-rw-------    1 _mysql  _mysql      1680 Mar 21 22:56 client-key.pem
-rw-r-----    1 _mysql  _mysql      3417 Mar 21 23:00 ib_buffer_pool
-rw-r-----    1 _mysql  _mysql  50331648 Mar 21 23:14 ib_logfile0
-rw-r-----    1 _mysql  _mysql  50331648 Mar 21 22:56 ib_logfile1
-rw-r-----    1 _mysql  _mysql  12582912 Mar 21 23:14 ibdata1
-rw-r-----    1 _mysql  _mysql  12582912 Mar 21 23:02 ibtmp1
drwxr-x---    8 _mysql  _mysql       256 Mar 21 22:56 mysql
-rw-r-----    1 _mysql  _mysql  25165824 Mar 21 23:14 mysql.ibd
-rw-r-----@   1 _mysql  _mysql      1634 Mar 21 23:02 mysqld.local.err
-rw-r-----    1 _mysql  _mysql         6 Mar 21 23:02 mysqld.local.pid
drwxr-x---  105 _mysql  _mysql      3360 Mar 21 22:56 performance_schema
-rw-------    1 _mysql  _mysql      1680 Mar 21 22:56 private_key.pem
-rw-r--r--    1 _mysql  _mysql       452 Mar 21 22:56 public_key.pem
-rw-r--r--    1 _mysql  _mysql      1112 Mar 21 22:56 server-cert.pem
-rw-------    1 _mysql  _mysql      1680 Mar 21 22:56 server-key.pem
drwxr-x---    3 _mysql  _mysql        96 Mar 21 22:56 sys
-rw-r-----    1 _mysql  _mysql  10485760 Mar 21 23:08 undo_001
-rw-r-----    1 _mysql  _mysql  10485760 Mar 21 23:14 undo_002

server:data root# ls -al /Volumes/Big_Data/SQL-Databases-LIVE 
total 16
drwxr-xr-x+  4 cdt     staff    136 Mar 21 23:01 .
drwxr-x---@ 19 test    staff    714 Mar 21 21:18 ..
-rw-r--r--@  1 cdt     staff   6148 Jan  4 16:26 .DS_Store
drwxr-x---   2 _mysql  _mysql    68 Mar 21 23:00 RemoteDBTest
server:data root# 

server:bin root# ./mysql -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 8.0.18 MySQL Community Server - GPL

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> use RemoteDBTest
Database changed
mysql> CREATE TABLE pet (name VARCHAR(20), owner VARCHAR(20),
    ->        species VARCHAR(20), sex CHAR(1), birth DATE, death DATE);
ERROR 1030 (HY000): Got error 168 - 'Unknown (generic) error from engine' from storage engine
mysql>