Does Target Disk Mode work between FireWire 400 and FireWire 800 ports?

Can I mount one as an external volume for the other Mac and vice versa? The one with FireWire 400 port runs on OS X 10.5, and FireWire 800 one has OS X 10.6 installed. If it works, I am thinking of buying an 800-400 adapter.

Can I mount one as an external volume for the other Mac and vice versa?
Yes.
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So how does Target Disk Mode work without a FireWire port?

Does it work with USB 2.0?

FireWire-less Macs isn't new, unfortunately. The MacBook Air (still in production) and the unibody MacBook (EoL) were released without FireWire. Apple has allowed for wireless, wired and even remote disc to assist with the day-to-day needs of migration assistant, file sharing and data transfers. Yes, TDM makes this process much easier, especially if there's a problem with the drive. But for the average user, who doesn't use FireWire's TDM feature, you're not completely dead in the water.

How do i use my imac 21.5" 2011 as a display for my macbook pro late 2011, through thunderbolt cable ? I have tried and it doesnt seem to work, neither does target disk mode.

How do i use my imac 21.5" 2011 as a display for my macbook pro late 2011, through thunderbolt cable ? I have tried and it doesnt seem to work, neither does target disk mode.
Could it be a borked cable ? I just bought it new from the store today, i have updated both imac and macbook pro to latest thunderbolt firmware and updates. Both 10.7.3.
MacBook Pro:
Vendor Name:    Apple, Inc.
Device Name:    MacBook Pro
UID:    0x0001000A17016E60
Firmware Version:    22,1
Port:
Status:    No devices connected
Link Status:    7
Port Micro Firmware Version:    FFFF.FF.FF

You are correct, here is what Apple Says:
http://support.apple.com/kb/TS3775
I was able to find these instructions, however they referr to 2009-2011 27" iMacs. I think it's the same, if it's not then contact Apple directly for instructions. If either of the machines is less than 90 days old or covered by AppleCare then call AppleCare tomorrow for help, they should be able to easily answer this for you. You will find the number in your manual or you can use the AppleCare Contact Info link.
Your iMac should automatically recognize the presence of a digital video signal at the Mini DisplayPort and enter Target Display Mode.
If your iMac does not automatically enter Target Display Mode, press command + F2 to manually enter Target Display Mode.

Conflicts between the FW-400 and FW-800 ports?

Has anyone found a problem when using both the FW-400 and FW-800 ports on the iMac? I have a Tascam FW-1082 connected to the FW-400 port that simply won't work as long as anything is plugged into the FW-800 port. I tired 3 different FW-800 drives and they all crashed the FW-1082. Most unfortunate since the whole reason for buying the 24" iMac (one month before the new iMac's were announced... grrr) was for the FW-800 port.

Greetings.. I have the exact same MacPro that you have. I started a post that has gotten quite lengthy that details a number of firewire issues after Snow Leopard, so maybe your experiences would go well there as well.
http://discussions.apple.com/thread.jspa?threadID=2136580&tstart=0
I have not been able to get a solution to my problem personally by switching devices from front or back, but perhaps there is something to that if they both use a separate bridge controller etc. If you have a Cinema display or the like, have you tried to use the ports on it?
Anyway...
Chris

Fire wire target disk mode work with usb also?

hi all,
does starting up in fire wire target disk mode also work with usb drives?

No, and it requires a Mac with built-in FireWire.

How does target display mode work? Where can I read about it?

I was wondering how target display mode works? On what models and which version of OS is this available?

Please do not create multiple threads for the same problem.<br>
Follow-up at your other thread at https://support.mozilla.org/en-US/questions/1004865.

Daisy-chaining firewire 400 and firewire 800?

I would like to daisy-chain two Western Digital MyBook Pros to a Macbook:
- FW 400 from Macbook to first drive
- FW 800 between the drives
Would this work or not? I have one of those, they have 2 x FW 800, 1 x FW 400, 1 x USB at back.
(If not, I'll buy a 'Premium' which has 2 x FW 400, and 1 x USB..)

JoeyR wrote:
I'm not sure if the hardware in the first drive, that's connected by firewire 400 is "smart" enough to jump the data over to the FW800 connectors for daisy chaining.
Just pulled this from the WD site. I would say this indicates it would work. You won't get more speed but they should work daisy chained. This indicates the drive is smart enough to do this.
+Question: Will Western Digital FireWire 400 (1394a) external hard drives work connected to a FireWire 800 (1394b) port?+
+Answer: The FireWire 800 Specification (1394b) states that FireWire 400 devices will work while connected to a FireWire 800 (1394b) port. The FireWire 400 cable (4-6 pin or 6-6 pin) will not connect to a FireWire 800 port (9 pin) therefore you will need to connect the hard drive using a FireWire 400 to FireWire 800 cable (1394a to 1394b cable). These cables are available at most computer stores.+

Old G4 450 Sawtooth - Multiple Drives - Target Disk Mode ?

So I have had this old computer a long time and have upgraded it over the years as much as it can handle - faster processor, max ram, multiple drives ...
The problem I am having at the moment is only one of the drives will show up in TDM - the one that shows up is the original 20Gb drive. I have a Seagate 500Gb and another Seagate 1.5 Tb drive too. Neither of the Seagates show up in TDM. I haven't cracked it open in a while but seem to remember they are connected via a SATA controller card. Just verified the two SATA connections. The 500Gb drive is my boot drive.
So is there something obvious here that I should understand? Thank you.
Oh I'm connecting to a circa 2007 MBP and Mavericks. The G4 is running Leopard.

I think I found my answer .... unless someone has an idea or info otherwise.
Tip: FireWire Target Disk Mode works on internal ATA drives only. Target Disk Mode only connects to the master ATA drive on the Ultra ATA bus. It will not connect to Slave ATA, ATAPI or SCSI drives.
Doesn't mention SATA but inferring it does include SATA.
Found at:
http://www.appleexaminer.com/MacsAndOS/Analysis/HowTo/Acquisition/acquisition.ht ml

Powerbook DIED. Target Disk Mode Failed.

I did everything under the sun short of bringing it to a mac service store. My computer was left whirring all night (I was not home) and the next day I found all the programs frozen so I did a hard shutdown. I haven't been able to reboot it past the gray apple screen since. Tried resetting PRAM, tried reinstalling from CD but it did not read the drive, tried disk utility from CD to "repair" drive but got errors, failed and could not continue. Diskwarrior didn't make a difference. Now I'm trying to transfer data via target disk mode to another mac. Connected firewire cable, rebooted holding down T, I see the yellow firewire icon bouncing around, but HOST computer does not see target drive. WHAT DO I DO?? What's going on? I was under the impression that target disk mode was foolproof in times like these. ANY suggestions would help. Thanks.

Welcome to the Apple discussions.
Unfortunately, it sounds like your hard drive has died. If disk utility from CD couldn't find it, and Disk Warrior couldn't find it, and firewire target disk mode can't find it .... these all point to a hard drive that crashed hard.
You didn't say if you ran the Apple Hardware Test. Insert your first OS X DVD that came with your system (will say 'AHT Version x.x in small print on the label), and boot holding the option key down. Choose the Apple Hardware Test, click the arrow pointing to the right and follow directions. Did that confirm the diagnosis? If you have a TechTools program, that can do the same testing.
If you have Applecare, go get a new drive. If you don't, consider buying your own drive and taking it to an Apple Authorized Service Provider to replace the drive (If you take it to Apple to pay for a replacement, they will usually keep your old drive, as a trade in towards the replacement drive - some people are bothered with this approach which anectdotally is not negotiable with Apple). Apple Authorized Service Providers can be found at http://www.apple.com/buy/locator/service/
If you scan the discussions, people generally seem pleased with HItachi and Seagate drives, although other brands work too. Seagate has a 5 year warranty if that's a consideration. You'll want a drive with a parallel ATA interface (not Serial ATA which won't work). 5400rpm minimum speed although for a few bucks more you can get a faster 7200 rpm drive. Two sources of drives are OWC at http://www.macsales.com and Newegg at http://www.newegg.com .

Can Target Disk Mode be run from an external hard drive?

Hi
My hard drive crashed on me the other day (again) and the apple genius told me all I could do was recover my data and send it in (again)
QUESTION:
Can target disk mode could be run using an external hard drive as opposed to another mac? If so, how?
I think corrupt files on my external hard drive might have crashed my ibook hard drive and I'm wondering if I should really try using the external to save all my info from my ibook. Am I completely clueless about computers or is this actually a possible problem?
Thanks

HI Andrea,
No, you are not completely clueless. If you follow John's sound advice using Target Disk Mode from another Mac, maybe you have a friend or relative who has one. Here's the information on how to use Target Disk Mode that I found in the Apple Help menu:
Transferring files between two computers using FireWire:
You can use FireWire to connect your computer to another Mac and have one of the computers appear as an external hard disk on the other computer. This is sometimes called Target Disk Mode.
To transfer files using FireWire:
Shut down the first computer and leave the second computer on.
Connect the two computers using a 6-pin to 6-pin FireWire cable. (If both computers have higher-speed FireWire 800 ports in addition to the standard FireWire 400 ports, you can use a 9-pin to 9-pin cable with the FireWire 800 ports to transfer data at higher speeds.)
Open System Preferences, click the Startup Disk, and click Target Disk Mode. (Or, start up the first computer while holding down the T key.)
A disk icon for the first computer appears on the desktop on the second computer. Drag files to and from the disk to transfer them.
When you finish, eject the first computer's disk by dragging its icon to the Trash. (While you drag, the Trash icon changes to an Eject icon.)
Push the power button on the first computer to shut it down and disconnect the FireWire cable.
If the computer to which you connect your computer is running Mac OS 9, it must have FireWire version 2.3.3 or later installed. Use Apple System Profiler (located in /Applications/Utilities) to check the version of FireWire installed. If it has an older version, get an update at the Apple FireWire website at www.apple.com/firewire.
It's a very simple process but it can only be done between two Macs. You can only "target" another Mac, not an external drive.
It sounds like your iBook needs service. And if you think that your external drive caused the problem to start with, I wouldn't use it again if you can do the TDM instead to retrieve your important data.
Also, be careful with total free drive space. Never fall below 15% free space. Open Disk Utility from the Applications/Utilities folder. Then select MacintoshHD in the panel on the left. Then look down towards the bottom of the window on the right. You'll see "Capacity" and "Availablity". It's a good idea to keep track of free space all the time. You need a minimum of 15% just to boot.
Hope this helps...
Carolyn

Target Disk Mode issue

I tried to use new Intel iMac, the host, (with OSX 10.6.2) to access hard disk in old iMac G5, the target, (with OSX 10.4) using a Firewire cable (800 at Intel iMac and 400 at G5 iMac). I can get the Firewire floating icon running at G5's monitor, but I cannot get the G5 hard disk mounted at Intel iMac.
Here are what I found:
1) At the Intel iMac, I can see the Target Disk Mode is on under "Hardware Overview" "Firewire."
2) Firewire icon is not floating all the time. Sometimes, it stops moving.
3) If I have target iMac to stay on and restart the host with the Firewire cable connected, the boot process at the host will slow down and cannot get past log in window.
4) Tried disconnect and reconnect cable, and the hard disk still cannot be mounted.
Since I cannot boot the G5 by itself (with its hard disk only or Tiger disk), I thought Target Disk mode was the solution for me to get the files out of the old iMac. At the moment, it is not working, please suggest solution.

Simon (UK) wrote:
Tried to use new Intel iMac, the host, (with OSX 10.6.2) to access hard disk in old iMac G5, the target, (with OSX 10.4) *using a Firewire cable (800 at Intel iMac and 400 at G5 iMac).*
I would question this method of connecting?
Try using an external hard drive and SuperDuper or CarbonCopy Cloner to clone to it. Then use that 400 drive, which probably has 800 also, to connect directly to your new Mac and then transfer via Migration Assistant. If you already set a home folder make sure it is identical to the Home folder you are transferring from or else it will create a second user.
-mj

Target Disk Mode from a 2009 MBP - 2012 MB Air

Hi all,
Recently my 2009 MBP hardrive crapped out on me with a 'diskos2 I/O' error. However, when I go into the Lion Recovery mode and use the disk utility, it registers that the internal harddrive is 'fine' when I use repair. I went ahead and picked up a new Macbook Air, figuring the SSD was better for all the travelling my mac does. But now I want to try and recover some of the data on that old MBP. So the two questions I have are: Will 'Target Disk Mode' work with a firewire 800-usb (or thunderbolt?) adaptor cable? If not, is there another way to possibly recover this data?
Thanks

Maybe it will, maybe it won't. I'm guessing the firmware in the guts of the adapter will play a large role in the aye or nay.
An alternate route would be getting the HDD outta the corpse, putting it in an external USB case and using that instead.

Target disk mode is not detected

I have a Mini running the latest Snow Leopard (and also a MB Pro - same OS rev.). The same (non)result is happening on both.
I am trying to connect, via Firewire, to an old PB G3 (running 10.3) - after plugging in the Firewire cable I start the PB-G3 in target disk mode. Its screen shows the firewire logo.
However, system preferences on the Mini (or MBP) does not show the Firewire connected to anything.
The Mini and the MBPro use different Firewire cables (the MBP uses the old 400-400 cable style & the Mini needs the 800-400 style cable). So I don't think it's the cable. Also, the Mini can use that cable to successfully mount a Firewire hard drive. That drive mounts and System Preferences on the Mini shows that it is happy with that drive under Firewire.
The PB-G3 is operational - i.e., I can boot it up successfully. I just want to mount it as a target drive to copy off some files.
Any ideas how I can get the PB-G3 to mount in Target Disk Mode via Firewire?

baltwo wrote:
If the G3 shows the FW icon on the screen,
It does.
all you have to do is connect it to one of the others with the appropriate FW cable, and it should pop up on the screen as a FWHD.
and that is precisely what I reported is NOT happening. It does not mount -- not on the Mini and not on the MBP.
Disk Utility does not "see" it. Neither does Disk Warrior. And System Preferences/Firewire does not show anything connected.
The FW cable is good because when I use it to connect to a HD, that shows as expected.
Indeed, I have read the KB article. Yes, I have never had this happen. That's why I'm reporting/asking about it.

MBP 13" not starting, target disk mode not starting....

My gf's MBP 13" is not healthy, but before we can wipe it and start fresh, we need to get some files off it.
I've just tried the Target Disk Mode to my MBP 15"
Using firewire I hooked up to the powered 13",
Connected to my ON 15"
Turned on the 13" and held down T
The firewire logo and power logo appea and dance around the screen on the 13"
on the 15" nothing appears - not on the desktop or in finder.
I'm able to check the firewire port on the 15" is working, but I can't check the 13" as it's just not working right as a computer right now.
I've also attempted hooking the 13" inch up to a portable HD and then daisy chaining that to the 15" - HD showed up, but not the other computer.
HELP...
Thanks everyone
-TfromT

it looks to be a version of mountain lion or snow leopard from the logo that pops up under recovery mode.
FURTTHER - I was able to confirm that the firewire port on the 13" DOES work - in recovery I hooked up a portable harddrive, but there is no way to copy off the files in recovery it would appear.
ugh.

Pismo with Tiger won't go into target disk mode

I recently upgraded my Pismo to Tiger and can't seem to boot into firewire target disk mode. The computer restarts and gives me a terminal screen that reads: "can't OPEN DISK" and then goes on to say "Welcome to Open Firmware. To continue booting, type "mac-boot"..."
I tried zapping the pram, but that did nothing. Does anybody have any suggestions?

MacUser,
When booted in 10.4.8, select Target Disk Mode in the System Preferences > Startup Disk and see what happens.
If no success, try resetting Open Firmware (from Apple docs):
Boot into Open Firmware by holding down the 'Command-Option-O-F' keys from a cold start while the chime is being played. You will see a command-line screen...enter these commands:
1. At the Open Firmware prompt, type: reset-nvram
2. Press Return.
3. At the Open Firmware prompt, type: reset-all
4. Press Return.
Example:
0 > reset-nvram
Press Return
0 > reset-all
Press Return
The reset-all command should cause the computer to restart. If this occurs, you have successfully reset the Open Firmware settings.

Does Target Disk Mode work between FireWire 400 and FireWire 800 ports?

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