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How to use FireWire target disk mode

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Operating Systems OS X (Apple) OS X Support RSS How to use FireWire target disk mode
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Old 10-16-2008
How to use FireWire target disk mode
Learn what FireWire target disk mode (TDM) is and how to use it.Description and requirementsFireWire target disk mode allows a Macintosh computer with a FireWire port (the target computer) to be used as an external hard disk connected to another computer (the host). Once a target computer is started up as a FireWire hard disk and is available to the host computer, you can copy files to or from that volume.Important: The computer will not go into FireWire target disk mode if "Open Firmware Password" has been enabled.Host computer requirementsHost computers must meet the following requirements: Built-in FireWire port, or a FireWire port on a PC card FireWire 2.3.3 or later Mac OS 8.6 or laterTarget computersThe following models can be used as target computers: iMac (Slot Loading) with Firmware version 2.4 or later iMac (Summer 2000) and all models introduced after July 2000 eMac (all models) Mac mini (all models) Power Mac G4 (AGP Graphics) with ATA drive Power Mac G4 Cube Power Mac G4 (Gigabit Ethernet) and all models introduced after July 2000 Power Mac G5 (all models) iBook (FireWire) and all models introduced after September 2000 PowerBook G3 (FireWire) PowerBook G4 (all models) MacBook Pro (all models) MacBook models introduced before October 2008FireWire softwareYou can download the latest Firmware and FireWire software from the Apple Support Downloads page (http://www.apple.com/support/downloads/).

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LEARN ABOUT OSF1

volrootmir

volrootmir(8)						      System Manager's Manual						     volrootmir(8)

NAME

       volrootmir - Mirror areas necessary for booting to a new disk

SYNOPSIS

       /usr/sbin/volrootmir [-a] [nconfig=count] target_disk [swap=target_partition]

OPTIONS

       Specifies that all volumes on the system disk be mirrored, not just the root and swap volumes, rootvol and swapvol.

DESCRIPTION

       The volrootmir script causes a mirror copy of areas of the root disk involved in booting to be made on the specified target disk.

       When  used without the -a option, volrootmir adds mirrors of the root and swap volumes and allocates them on the new disk. In addition, all
       disk regions required for booting are set up and partitions for the new volume mirrors are created.

       When used with the -a option, volrootmir mirrors all in-use partitions on the system disk.

       To mirror a swap volume that is on a separate disk from the root volume, the swap attribute must be used to specify a separate  target  for
       the swap mirror.

       The  target  disk(s)  must be at least as large as the sum of the sizes of rootvol and swapvol. Also, the physical disk should not have any
       disk partition in use.

       This script can be called from the voldiskadm menus by choosing the Mirror volumes on a disk operation.

ATTRIBUTES

       Specifies the number of log copies and copies of the configuration database, for example,  nconfig=2.   Specifies  that	the  swap  volume,
       swapvol, be mirrored on a separate disk, as specified by target_partition.

EXAMPLES

       The following command mirrors the rootvol and swapvol volumes onto the target disk, dsk3. This command will fail if swapvol is on a differ-
       ent disk from rootvol.

	      # volrootmir dsk3 The following command mirrors rootvol, swapvol, and any other volumes on the root disk onto the target disk, dsk3.
	      This command will fail if swapvol is on a different disk from rootvol.

	      #  volrootmir -a dsk3 The following command mirrors rootvol on disk dsk3, swapvol onto partition dsk7d, and any other volumes on the
	      root disk onto disk dsk3. This command will fail if swapvol is on the same disk as rootvol.

	      # volrootmir -a dsk3 swap=dsk7d The following command mirrors rootvol onto disk dsk3 and swapvol onto partition dsk7d. This  command
	      will fail if swapvol is on the same disk as rootvol.

	      # volrootmir dsk3 swap=dsk7d

SEE ALSO

       volintro(8), voldiskadm(8)

																     volrootmir(8)