How does time capsule distinguish between computers on the network?

I used the migration assistant to set up my new MBAIR. Gave the old MBPRO to my wife, but want to back up both machines using Time Capsul. Just want to be sure that the TC will differentiate the two machines. I renamed the MBPRO in the Sharing Settings. I assume that should do it but don't want to undo a whole lot of work.

On the first backup of the new Mac, you should be asked whether you want to "inherit" (on Lion) or "Reuse" (on Snow Leopard) the backups of the old Mac, per #B5 in Time Machine - Troubleshooting.
If you choose Create New Backup, Time Machine will create a new sparsebundle on your TC for the new Mac.
The two will compete for the empty space on the Time Capsule; if the old one has already used most or all of it, you'll have a problem.  If so, you'll have two options:
Delete a number of old backups manually, and "compact" the old sparse bundle, per #12 in Time Machine - Frequently Asked Questions.
Connect a USB drive to the TC and back the new Mac up to it, instead of the TC's internal HD. 

Similar Messages

  • How does time capsule compare to a different external drive

    how does time capsule cpmpare to other external drives used to perform backups with time machine?

    Hi space needle,
    Thank you for posting on the Adobe forums, please help us with the information listed below for further assistance on this.
    1) which Application are you trying to install?
    2) Operating System you are working on
    3) Method of installation (customized or the standard installation)
    Thanks,
    Vikrantt Singh

  • Does time capsule make duplicate copies of the files those are already exist in it?

    Does time capsule make duplicate copies of the files those are already exist in it?

    It's not clear just what you mean.
    If you're backing-up your Mac, via the Time Machine software, to a Time Capsule or external HD, then yes, by default, Time Machine will copy everything the first time.  Subsequent backups will copy only what's new or changed.
    If you mean, can you back up other data on a Time Capsule, no, not with Time Machine.  It can only back up TO a network location, not FROM one.

  • I'm trying to connect a LAN printer, HP Color Laser Jet 3800dn, through a Time Capsule but no one on the network can see it.  The printer works fine if I connect it directly to my iMac.  Any suggestions?

    I'm trying to connect a LAN printer, HP Color Laser Jet 3800dn, through a Time Capsule but no one on the network can see it.  The printer works fine if I connect it directly to my iMac.  Any suggestions?

    Hi Clark
    There is a good chance the printer is just getting auto IP internally..
    Plug it into your TC. And then set to dhcp via the controls on the printer.
    If you know the name of the printer it should be immediately available to the network.. but anyway, you can find its IP by printing out the test page. That will also give you the network name.
    Most later HP printers have web access to the print servers.. just type the ip into your browser and see if it comes up. 
    From the Mac, you should then be able to set it up via the printer preferences. Most HP will just appear.. but if not you should perhaps delete the local version and then check again for network printers.

  • How does Time Capsule handle the same files on multiple computers?

    I'm a writer who works on my MacBook Pro, the family's desktop PC and soon hope to have my own Apple desktop.
    Is it possible to have the most current document(s) available no matter which machine I'm on?
    Does Time Capsule go to each computer, find the most recent version and back it up?
    Does it even work with PCs?

    Is it possible to have the most current document(s) available no matter which machine I'm on?
    Sorry, but no.
    Does Time Capsule go to each computer, find the most recent version and back it up?
    Time Machine will backup any changes to each Mac hourly
    Does it even work with PCs?
    Only if you manually drag/drop or copy/paste PC files to the Time Capsule drive

  • How does Time Capsule identify Macs backing up towards it

    I have acquired a MacBook Air and copied data and settings from my MacBook Pro to it. I have no intention to replace the MacBook Pro, but to use both computers simultaneously. Everything works fine, but when both machines are online in my home LAN and are trying to execute a Time Machine backup to the Time Capsule, I very often get an error from the (old) MacBook Pro that the Time Capsule is busy.
    Would there be a possibility that the MacBook Air has somehow herited any kind of ID from the MacBook Pro so they are seen as identical machines from the TIme Capsule?
    I have changed the computer name in the sharing settings - is there anything else I should change to make this work?
    Kind regards, Stefan

    Chamar wrote:
    Check the Time Machine Preferences on the MBA and check the setting of the ON/OFF slider.  If you do not want TM to automatically backup from the MBA, set it to OFF.
    I run TM manually from my MacBooks to avoid any conflicts on the TC.
    Thank you Chamar, I apologize for being unclear in my statement. I am very happy with Time Machine starting automatically, I only would like to know by what criteria a client is identified by Time Machine / Time Capsule. If it is the computer name in Sharing Preferences only, then ok.

  • How does time capsule and Time machine save data?

    So I have an iMac with a 1tb drive (about 200gigs used) and a laptop with a 320gig drive (about 180gigs used). My airport extreme is crapping out, so I thought I would upgrade to a time capsule.
    I haven't used time machine, but I recently read that Time Machine takes a complete snap shot of the HDD. So even though I have 800gigs free on my imac, it will still take up 1tb on the time capsule. I was hoping to back up both on the time machine. (Well aware that I will eventually run out of space).
    Is this correct? or will I be able to back up both on the Time Capsule?

    I haven't used time machine, but I recently read that Time Machine takes a complete snap shot of the HDD. So even though I have 800gigs free on my imac, it will still take up 1tb on the time capsule. I was hoping to back up both on the time machine.
    I believe Time Machine (TM) will only back up the data portion of your 1 TB drive, not the free space, as TM is not a disk cloning utility. So if you, in your example, only have 200 GB of data on your drive, the first TM backup will only be approximately 200 GB is size. So you should be able to back up both Macs using TM to the Time Capsule.
    You may find the following Apple Discussions post helpful: How big of an External Hard drive should I get?

  • How does Time Capsule treat data other than disk images?

    Hi there
    I have a 3TB TC to use primarily as a wireless backup, as intended by Apple.
    However, I wish to temporarily transfer a couple of GBs of data to it for transferring across to another machine.
    I seem able to do the above, but my question is: how does the TC treat the two different types of data?
    - Is it a better idea to partition the drive first?
    - Is the TC likely to automatically delete the original data, like it does with old disk images, when the disk gets full?
    - Can the TC handle the disk images and the original data side-by-side?
    Just need some help understanding the 'Apple Magic' with this one!
    I do realise that having the original data on the TC won't help me if it fails, but like I said, this is a temporary measure. Please don't post about this, as you won't win yourself any points - you'll just look like a smart-*** and annoy everyone.
    Thanks in advance!

    1. The Time Capsule will not automatically delete data that wasn't originally put on it as part of a Time Machine backup.
    2. It isn't possible to partition the Time Capsule. Network drives can only be partitioned by software specifically designed to work with that drive.
    (67818)

  • Exactly How Does Time Capsule Work/Backup Strategy?

    I've got a MacBook and several external drives I want to access wirelessly but I also want to backup all of them. I understand that Time Capsule won't backup any drives plugged into its external USB port. However, will the Time Capsule backup any external drive connected to my MacBook?
    From what I've read it appears that the Time Capsule relies on the computer to backup the drive. If the computer is asleep or off, there's no backup. So it's only backing up my MacBook when I'm using it? Does that mean I should plan time when I'm not using it, to let it sit idle so the network activity doesn't interfere with my use of it? In which case, I could plug the drives into the MacBook at the same time. However, this seems somewhat inconvenient.
    Since I want to use the drives wirelessly anyway, If they were all connected to something like a Mac mini, then everything connected to the mini could be backed up whenever. For that matter, could the Mini itself could be used as the AirPort and network drive for my MacBook and take the place of the Time Capsule (not to mention use as a second computer)? Would this be a better solution for my needs?
    FYI, I already have an AirPort Express.

    Woodwyn wrote:
    So it's only backing up my MacBook when I'm using it? Does that mean I should plan time when I'm not using it, to let it sit idle so the network activity doesn't interfere with my use of it?
    It backs up while the Mac is on, and it does it in the background. I have not noticed much difference working when it's on, so I just let it churn away while I do whatever I want to do. Remember that the backup is occurring over the local network only, and that should normally have a lot of capacity, especially over wireless n or Gigabit Ethernet. It's no big deal to use the Internet at the same time as Time Capsule, since your Internet connection is probably a fraction of your local network speed and has no problem getting through around the backup.

  • How does time capsule work for PCs

    looking for a wireless backup option for my MacbookPro and my HP Desktop, so want to be sure that the wireless backup options / software works on both platforms and there are no hangups

    You might want to take a look at Genie Timeline Pro and contact their support folks to check on current compatibility with the Time Capsule.
    Genie Timeline Pro | Overview | Time Machine Backup Software for ...
    I have not used this product, but my neighbor loves it says that the software will allow automatic backups to a Time Capsule.

  • How does Time Machine handle alias files on the backup volume?

    I have been trying to find some info on how Time Machine handles alias files on the backup volume, but can't find anything on that topic. Neither here in this discussion or at the Apple support pages.
    My concern is if an alias file on the backup volume is backed up »as is«, or if it is resolved and the original file is backed up? The last would be most annoying as this will make the size of the backup much larger.
    Even though I do not know of folders having been renamed (which will cause that folder and all its content to be backed up again) Time Machine often backs up a surprisingly large amount of data, so I suspect that alias files could be resolved.
    Any info on this will be appreciated.

    Alias files are NOT followed, AFAIK.
    For more info on how TM works, see this ars technica review.
    Good luck!
    Message was edited by: joshz

  • How does home sharing work between your computers?

    How does home sharing work between computers?

    With any luck, the following document may be of some assistance:
    Understanding Home Sharing

  • HT4260 Airport extreme and time capsule connection order in a roaming network

    I plan to create a roaming network with my current Airport Extreme as the primary device connected to the internet and the new Time Capsule as the secondary device in Bridge mode. The connection between AE and TC will be wired (ethernet). Then I plan to connect the PC that needs backing up to the Time Capsule with an ethernet cable. Apart from the PC-backup functionality, I'd like to use the Time Capsule as a central NAS-device in my network. All other wired network devices that need access to the NAS (Apple TV, Xtreamer) are currently connected to the primary Airport Extreme with ethernet cables. My question: is there any reason why I should consider reversing the setup order, i.e. making the Time Capsule the primary device connected to the internet and the Airport Extreme the secondary device? Would this have a positive or negative effect on Time Capsule functionality and performance in the network? Thanks in advance for your thoughts!

    Your Gen3 Extreme and all TC are gigabit.. as long as you connect with the required standard cable to have a gigabit connection between the two, there will effectively be no difference. In a home network you will struggle to saturate gigabit no matter what you do. Although the difference between the two configurations is really very small.
    General rule is keep whatever is using the highest bandwidth closest and directly connected to whatever it is using.. shrug.. in this case you can follow or not.. it is more a guideline.

  • How to reconfigure a time capsule for additional computers

    I have searched extensively, including this forum, for instructions on making space on my (1 TB) Time Capsule so I can backup a couple more computers.  Usually, the answer to how to free up space is "Why do you want to do that?  It deletes the old files automatically", my response is "So I can free up space to backup more computers."
    The relevant responses to other askers of similar questions is to manually delete manuals, which can be dangerous as is noted, and wipe the disk and start again.  I did try the "delete all backups" of space-hog folders providing those folders are intact on the computer, which should then free some space, however, that did not work for me, no space was apparently freed even though the folders contained hundreds of gigabytes.
    To actually ask a question:
    Is there some way to configure the Time Capsule to do any of the following?
    1) Use no more than XXX M/G-bytes of storage for backups.
    2) Delete backups older than XXX months/years.
    Both of the above would be possible during a back-up and "immediately".  If I could do that, then I could easily make room on the device for the other computers.
    If the answer is "Not possible", then I'd ask Apple if they have plans to add some management capability to address the needs of apparently quite a few owners.

    imabaltimoron wrote:
    I have searched extensively, including this forum, for instructions on making space on my (1 TB) Time Capsule so I can backup a couple more computers. 
    1TB is not much if you have several computers.. each needs at least twice the currently used or potentially used GB plus about 20% free space to work in.
    I am not sure but did you consider..
    1. Using USB drive.. plugged into the TC as new space for more computers.
    2. A disk transplant to something larger. It is fairly easy now to slip in a 2TB or even 3TB Green Drive. Depending on the age of the TC that can be a big boon.
    When you delete files out of the sparsebundle.. the sparsebundle itself doesn't change size.. but will have free space inside it.. this is hard to see.
    Look at the posts by Pondini about setting fixed size sparsebundle or recovering the space.
    Start from here. http://pondini.org/TM/Time_Capsule.html
    Q3 and 4.
    Then http://pondini.org/TM/A8.html
    On reducing the size of the sparsebundle.
    To actually ask a question:
    Is there some way to configure the Time Capsule to do any of the following?
    1) Use no more than XXX M/G-bytes of storage for backups.
    2) Delete backups older than XXX months/years.
    Both of the above would be possible during a back-up and "immediately".  If I could do that, then I could easily make room on the device for the other computers.
    If the answer is "Not possible", then I'd ask Apple if they have plans to add some management capability to address the needs of apparently quite a few owners.
    TM works more on the space available.. it will work until it fills it.. By being tricky and using the fixed size sparsebundle I think you can get around 1.
    I doubt that TM will offer any more controls than it does.. they are already complex enough.
    And it is not the date but the size that is key for your situation.

  • Does time capsule backup two separate users with their individual passwords or how do you set that up?

    I Have two separate users on my computer and want the backups to reflect that. I don't want one user to have access to my stuff and vice versa.  Does time capsule do this automatically or do you set this up somehow?

    TM does the whole computer.. it is designed for home setup.. where people not that worried about security.
    It is always possible for any user to access any other users account.. given enough time and skill. TM backups make it easier in a way.. I have tested it myself and I can recover TM backups from unknown user in a Time Capsule with an unknown password. It was tricky but anyone with brains can read the net.
    There are solutions.. as I said.. if you are worried you should be using Encryption. Never depend on passwords in a shared computer to prevent access.
    If your files are encrypted then even if a person recovers them they cannot read them without the key.
    It may need for your files to be on a separate partition.
    See Pondini's info on file vault and interaction with Time Machine.
    http://pondini.org/TM/25.html
    Of course for a person to hack in.. they have to want to do it.. in most people's home situation that is not a hassle.
    For a business setup you would be using superior security.. proper active directory server etc.

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