nodejs module to get disk information, will call system command to get drive info. Parse result and load info in array.
var d = require('diskinfo');
d.getDrives(function(err, aDrives) {
for (var i = 0; i < aDrives.length; i++) {
console.log('Drive ' + aDrives[i].filesystem);
console.log('blocks ' + aDrives[i].blocks);
console.log('used ' + aDrives[i].used);
console.log('available ' + aDrives[i].available);
console.log('capacity ' + aDrives[i].capacity);
console.log('mounted ' + aDrives[i].mounted);
console.log('-----------------------------------------');
}
});