use mutiple ssd in solr cloud

[Amin Raeiszadeh]

Hi
i want to use more than one ssd in each server of solr cluster but i don't
know how to set multiple hdd in solr.xml configurations.
i set on hdd path in solr.xml by:
<str name="coreRootDirectory">/media/ssd</str>
but i can't set more than one ssd.
how should i do it.
thanks.