on getVolumeFreeSpace(serverName)
　　set anNSURL to (current application’s |NSURL|’s fileURLWithPath:"/Volumes")’s URLByAppendingPathComponent:serverName
　　set theResult to (anNSURL’s checkResourceIsReachableAndReturnError:(missing value)) as boolean
　　if not theResult then
　　　　— not mounted, so handle error
　　　　return false
　　end if
　　set {theResult, theSpare} to anNSURL’s getResourceValue:(reference) forKey:(current application’s NSURLVolumeAvailableCapacityKey) |error|:(missing value)
　　if theResult as boolean then
　　　　set spareString to (current application’s NSByteCountFormatter’s stringFromByteCount:theSpare countStyle:(current application’s NSByteCountFormatterCountStyleFile)) as text
　　else
　　　　— couldn’t get the value, so handle error
　　　　error
　　end if
end getVolumeFreeSpace

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