Hardware :: How Does Time Machine Work With An External HDD
Aug 5, 2009
I was wondering how time machine would work with an external hard drive.
I need an external drive so that I can make sure that my work is backed up; I believe that Time Machine takes a new backup each time a file is edited?
Anyway; does the external drive have to be partitioned or formatted in any particular way for time machine to function?
I ask because I would like to use my external drive to store games and music (as a backup, not a primary source), but also be able to use it with time machine.
Also, does time machine make a copy of the entire mac drive, or does it just backup specific folders (such as your user areas). If so, can I select these myself?
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Oct 3, 2010
I would like to set up Time Machine with an external HD. Is it worth it? Isn't it supposed to be a seamless backup over a network storage? But if I have to keep plugging my external HD in everytime I would like to backup, will that be good enough? Say, I plug in my external HD every 2 weeks, that would give me a good sufficient Time Machine backup? How long does it take?
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Nov 22, 2009
I'm just about to receive my new Core i7 iMac with a 2Tb Hard Drive and was just wondering whether I could use my old 1Tb Hard Drive for Time Machine Backups.
As far as I know the requirement for a Time Machine Backup Drive is that the drive is at least the same size in terms of capacity as the internal HD of the system you're planning to back up.
I would really like to use my old drive as 2Tb external drives with FireWire 800 are in the 200+ region on Amazon and I'm not sure I would like to spend that much at the moment.
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May 29, 2010
Do I have to get the time capsule from apple, or will any external drive suffice?
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May 5, 2012
I am looking for an external hard drive to work with time machine on a imac. All the reports I have looked at are really mixed
Info:
iMac, Mac OS X (10.6.8)
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Mar 21, 2009
I was thinking that if i bought an external MOBILE hard drive (un-powered) i could take it with me sometimes when i need it in UNI (in Lectures where there is no power source to plug drive in), but also attach it to the mac and since it is un-powered and mobile time machine will work without needing external power.
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Aug 23, 2010
I was trying to set up my Time Machine to an external hard drive. I didn't continue because it asked to "initialize" the hard drive which I had a lot of important things on.
I have another external hard drive I'd like to use but, my Time Machine has this error code of -43. What is this and how can I use my Time Machine on another external hard drive?
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Sep 3, 2009
Since I just lost my hard drive on my iMac 24 Intel, I am using external hard drive to backup via Time Machine. My question is what procedures are needed when you disconnect ext. hard drive? Do you change Time Machine from ON to OFF?
I know that I have to eject the ext. hard drive using proper commands, but what happens whenever I reinstall the ext. hard drive? Does Time Machine start over from the beginning or just update for changes since my last backup via Time Machine?
When I go on trips, I store ext hard drive in a safe and this is why I am asking.
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Jan 31, 2010
Ok, so i picked up a 2TB Time Capsule a couple days ago and have tried everything i can think of to get this to work, but im at a loss... I had been previously using Time Machine to backup to an Ext HD attached via USB, and that always went smooth as butter.
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May 20, 2012
I have updated to 10.7.4, and now Time Machine does not work on my Time Capsule. I have erased all backups using the Airport Utility. When I try to run Time Machine, the disk is mounted, files are calculated, backup starts, then stops, and no backup is done. Also, no error messages.Â
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Mar 11, 2009
I have an external 500gb drive plugged into my brand new Time Capsule. The 500gb drive basically stores my entire library of music and my iTunes points to this external drive.
Is it possible to have time machine backup all information on the 500gb drive to the time capsule, so encase the external drive takes a dump, I don't loose my entire music library? Maybe time machine is already doing this, I am not sure.
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Jan 11, 2010
As my 160N series Linksys router neither has gigabit ports, usb connector or dual band networking, I am looking for a replacement.
When it comes to Apple routers I am looking at 2 options - either the base station with an external USB drive or get a 1TB capsule with the buildt in drive and worries regarding reliability.
What I like about the Time Capsule is that it is neat to have all in one, takes up less space and only has 1 plug to attach, while Iike the idea that I can just connect a bigger drive later on the base station solution.
1. Will the connected USB drive function just like the internal drive in the Time Capsule for Time Machine use?
2. Will everything be transparent to Snow Leopard?
3. In case of both units with an attached USB drive - can I control who actually can see the drive and access it?
4. Do they support this DNLA thing so that e.g . PS3 can access an attached drive??
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Aug 4, 2008
I like to keep my computer secure when I leave it unattended, just wondering if TM will run its auto-backups when I log out?
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Jun 18, 2009
After receiving advice from you guys, I think I will opt to go with:
Disk 1 - OS and my Files
Disk 2 - Time Machine to back up Disk 1
Disk 3 - smaller, slower disk for non important files such as trailer downloads etc
I have a question about time machine though.... how does it work?
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Oct 29, 2010
Does anyone know if Time Machine will work with any NAS? I found this from a 2008 article:
Doesn�t Use AirPort Disks If you have a hard drive attached to your AirPort Extreme Base Station�or for that matter, any network-attached storage (NAS) device except the Time Capsule�Time Machine won�t recognize it.
Is this still true with Snow Leapord? Specifically I'm considering this drive:
[URL]
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Feb 21, 2008
I've just got my iMac so for me it was important to get TM up and running before I start doing some real work (and hard play!).
I want to share the lessons learned from my experience and from others in this forum in the hope that it will help others.
I am using a NS4300N NAS from Promise on a LAN with an iMac running Leopard 10.5.2. I connect to it using SMB. It should work with any NAS since the instructions here are not NAS specific. I haven't tried with AFP.
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May 13, 2009
Just downloaded the new software update (10.5.7) & now my time machine backup doesn't appear to work. I get the following image. I have been to the preferences but can't see the external hard drive there?
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Feb 27, 2012
cannot get time machine to work
Info:
MacBook Pro, Mac OS X (10.7.3)
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Dec 14, 2010
I searched and couldn't find an answer on this.
Can time machine work on multiple drives?
Currently, I have time machine backing up my iMac on to an external drive.
I also have a third drive filled with movies and music. I would like to set iTunes to play directly off of that drive but I don't want to risk losing that stuff.
Can I set time machine to back up my iMac on HD2 AND ALSO back up HD3 to HD4?
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Jan 6, 2008
I notice that Spotlight only says "indexing" after I restart the computer, which isn't that often.
But that's not the only time it indexes, right? Does it index a file whenever it's created or moved?
And what about Time Machine? Again, after restarting the computer, my external backup drive that I use with Time Machine is indexed. But I never notice it being indexed when I don't restart.
Does Spotlight have to index it, or does TM handle that somehow? I mean, can I put my backup disk on Spotlight's ignore list, and still have Spotlight in Time Machine work fine?
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Sep 14, 2009
I've installed SL on my Mac Pro from scratch (Clean Install). Then I created my first backup with Time Machine. (550GB) After two weeks, I found out that I could boot my machine into the 64 bits kernel. So I did. I booted with the 6 + 4 keys during startup and I've checked and I was using the 64bits kernel. Then I week later without adding no new data, I caught a time machine backup with over 350GB backup. (Which match the data on my third hard drive.)
I was wondering if by changing the kernel did Time Machine "thinks" that it is a new backup a take some files from my drives protected by the backup.
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Nov 23, 2009
I would love to use Time Machine to back up my files at home as I do at work, but I do not want to upgrade to 10.5 due to conflicts a number of my programs. Will Time Machine work on a Mac running 10.4.11?
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Mar 13, 2012
I am trying to delete files from my USB Iomega HD in order for Time Machine (TM) backup to work. TM keeps giving me an error msg that disc is full. I then try to delete files from usb to the trash and the error msg I keep getting will not allow me to do this. The error message is some files are locked/unlocked and when I press either it cancels deleting files from the USB hard drive. I thought that every time you use back up using TM it gets rid of the earliest files, hence I should not have multiple copies of the same files on the USB hard drive.
Info:
MacBook Pro, Mac OS X (10.6.8)
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Mar 26, 2012
Why can't I get my Seagate 1.5TB External HD to act as Time Machine for backups?
Do I need to use come other application? I have barely gotten one backup a day!
Info:
time machine, Mac OS X (10.7.3)
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May 26, 2012
i have time machine but not airborne (wireless). Will time machine work through a direct cable line to my backup drive?
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Jun 25, 2012
Is the only way TM works if logged off is if I use Fast-user Switching? Â
Info:
Mac OS X (10.6.7)
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Jun 30, 2012
every tim i try to backup it starst to backing up and it stops and it says (the backup was not performed because an erroe occurred while copying files to the backup disk.)( the problem may be temporary. try again later to back up . if the problem persist, use disk Utility to repair your backup disk.)i did everything it told me to do but it steal not working . what shod i do ?
Info:
MacBook Pro (15-inch Early 2011)
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Jul 1, 2014
After I installed maverick on my imac, my time machine backups don't work anymore!!!! I have a normal portable HDD attached to my Imac with time capsule backup from before mavericks was installed.I also has a Buffalo NAS as a second Time Machine Backup. Â
Time capsule does not recognise my Buffalo NAS and tells me that it is not available. It has previous backups from Mountain Lion for sure!My portable HDD keeps saying "Preparing for backup" for eternity. I can connect to my portable HDD and Buffalo NAS as a drive.  What I have been doing is to copy and paste the important stuff into the drives. But it really defeats the purpose of time machine.
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Aug 9, 2008
"On 19 March, 2008, Apple released an update for the Time Machine software in the "Leopard" operating system. This update makes it possible to use Time Machine with ANY "AirDisk" (a drive plugged into an Apple Airport Express or Extreme router.) This effectively creates a Time Capsule without the complexity of the actual product, just by connecting a drive. The best part is that the initial backup can be made via USB or FireWire are speeds which blow away even Ethernet-wired speed of the TIme Capsule. Subsequent backups can be made via wireless at about 8X the speed at which TC works. "
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Apr 28, 2009
I used Drive Genius 2 (from DVD) to defrag my HDD � and I think it did �but in addition to that it apparently messed everything up so I couldn't boot from it = I had to do a restore from my Time Machine backup � and so I did � but then everything got messed up in terms of permissions, and after a restart - well, it didn't start � so, once again, same restore from Time Machine, and this time everything seems fine, except for the fact that my backup drive tells me that I have no access to it - I have no permission to even open it! And thus I can't use it as a backup or anything else, it's a 1TB useless disk!
Question: Is there any way to "regain" access to my HDD? Any way to have it continue as a backup drive without deleting the "old" backups stored on it now? I also have a small 60GB BootCamp partition with Vista () on the 1TB backup drive.
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