How to provide path to sysbench to create mysql database other than '/var/lib/mysql/ 'path ??

I am running mysql sysbench for kvm tesing. On kvm guest I have created database and created user. From the client side I am invoking this command to add entries in database created on kvm guest:

 ./sysbench --oltp-table-size=100000 --test=tests/db/oltp.lua --mysql-user=client1 --mysql-password=password1 --mysql-host=90.0.0.1 --mysql-db=sbtest1 prepare

By default database is getting created in '/var/lib/mysql/' path. In my case problem is the space allocated for '/' file system is only 5G. So client/s can't add more record or can't do write operations as there is not much space. So is there any option for sysbench which can be used to specify the path while creating/adding entries/modifying the database, So I can attach hard drive to kvm guest, create database and run sysbench ?? Thanks in advance ..!!