alluxio.util

Class HFSUtils

java.lang.Object

alluxio.util.HFSUtils

public final class HFSUtils
extends Object

Utility method called in alluxio-mount.sh to calculate space for Mac OS X HFS+. Metadata zone size is estimated by using specifications noted at http://dubeiko.com/development/FileSystems/HFSPLUS/tn1150.html#MetadataZone, which is slightly larger than actually metadata zone size created by hdiuitl command.

Method Summary

Modifier and Type	Method and Description
static long	getNumSector(String requestSize, String sectorSize) Converts the memory size to number of sectors.
static void	main(String[] args) The main class to invoke the getNumSector.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getNumSector

public static long getNumSector(String requestSize,
                                String sectorSize)

Converts the memory size to number of sectors.

Parameters:

requestSize - requested filesystem size in bytes

sectorSize - the size of each sector in bytes

Returns:

total sectors of HFS+ including estimated metadata zone size

main

public static void main(String[] args)

The main class to invoke the getNumSector.

Parameters:

args - the arguments parsed by commandline