How to verify time machine backups for consitency

While I had a problem w/ my HDD, I thought I would be save because I was always backing up all my data w/ time machine. After rebooting from the system disk (CD) and selcting to restore from my time machine backup, I had to learn that not all data where consistent and w/ this the restore stucked in the middle of nowhere...
Then I installed the systems brand new from the System-Disk and then tried to restore to most of my data and programs from time machine. After many hours I had my system up an running nearly as it was before, but only nearly.
Now, I would like to avoid a similar situation and look for a way to verify that for the future the backups are correct and consistent. Since Snow-Leo time machine offers an option to verify backups, but I have found that it does not work for external disks attached by USB or FireWire.
What can I do to make sure that the backups are OK?
Thanks a lot
Hansjoerg

HaJo-aus-BS wrote:
Since Snow-Leo time machine offers an option to verify backups, but I have found that it does not work for external disks attached by USB or FireWire.
Yes, that's for network backups only.
What can I do to make sure that the backups are OK?
You can tell if the File System (the various directories, catalogs etc.) is ok by repairing your backup drive, per #A5 in Time Machine - Troubleshooting.
You can "spot check" whether the Time Machine "Star Wars" display seems correct.
You can do a full system restore to another disk per #14 in Time Machine - Frequently Asked Questions, then start up from it and see if things are there and seem to work.
You can keep "secondary" backups (always a good idea). See #27 in the FAQ post for some suggestions.

Similar Messages

Would like to verify Time Machine backup but when I enter TM and then open iPhoto, it only provides me a gray window telling me the size of the file. How do I make sure all iPhoto pictures have been backed up on Time Machine?

Would like to verify Time Machine backup but when I enter TM and then open iPhoto, it only provides me a gray window telling me the size of the file. How do I make sure all iPhoto pictures have been backed up on Time Machine?

HaJo-aus-BS wrote:
Since Snow-Leo time machine offers an option to verify backups, but I have found that it does not work for external disks attached by USB or FireWire.
Yes, that's for network backups only.
What can I do to make sure that the backups are OK?
You can tell if the File System (the various directories, catalogs etc.) is ok by repairing your backup drive, per #A5 in Time Machine - Troubleshooting.
You can "spot check" whether the Time Machine "Star Wars" display seems correct.
You can do a full system restore to another disk per #14 in Time Machine - Frequently Asked Questions, then start up from it and see if things are there and seem to work.
You can keep "secondary" backups (always a good idea). See #27 in the FAQ post for some suggestions.

How to select correct time machine backup for migration assistant

We have two MacBooks backing up to one Time Capsule using time machine: let's call them H and R.
I have had to reinstall Leopard on Macbook H and am now trying to restore using Migration Assistant.
Migration Assistant finds the Time Capsule and identifies that there are two Time Machine Backups, but doesn't give an option to select the one to use.
Whenever I click 'Continue' it does the 'Checking time machine backup' (for hours), then brings up the data to restore, but every time it comes up with the data and settings from Macbook R.
How can I tell Migration Assistant which Time Machine Backup I want to use?

Brilliant. That was it.
I used the other MacBook to run Disk Utility on my backup volume and repaired it: #A5 is bang on.
Then, Setup Assistant saw both backups and let me select the one I wanted. It's now transferring my stuff.
Very relieved and extremely grateful.
Your apple tips should come with every mac and time capsule.

I have a mid2009 MacBook Pro for which I have been using a USB WD HD for Time Machine. I'd like to get a wireless HD and start a new Time Machine backup for this Mac and retire the 5 year old WD drive. Can I start over?

I have a mid2009 MacBook Pro running Mavericks for which I have been using a USB WD HD for Time Machine. I'd like to get a wireless HD and start a new Time Machine backup for this Mac and retire the 5 year old WD drive. Can I start over?

no archive/ backup is perfect, HD clones can be set to make incremental additions, same as time machine however, though they are more time involved in doing so.
See the + and - of all data backup/ archives below and "spread it around".... or the "dont put your eggs all in one basket" philosophy.
Peace
Data Storage Platforms; their Drawbacks & Advantages
#1. Time Machine / Time Capsule
Drawbacks:
1. Time Machine is not bootable, if your internal drive fails, you cannot access files or boot from TM directly from the dead computer.
2. Time machine is controlled by complex software, and while you can delve into the TM backup database for specific file(s) extraction, this is not ideal or desirable.
3. Time machine can and does have the potential for many error codes in which data corruption can occur and your important backup files may not be saved correctly, at all, or even damaged. This extra link of failure in placing software between your data and its recovery is a point of risk and failure. A HD clone is not subject to these errors.
4. Time machine mirrors your internal HD, in which cases of data corruption, this corruption can immediately spread to the backup as the two are linked. TM is perpetually connected (or often) to your computer, and corruption spread to corruption, without isolation, which TM lacks (usually), migrating errors or corruption is either automatic or extremely easy to unwittingly do.
5. Time Machine does not keep endless copies of changed or deleted data, and you are often not notified when it deletes them; likewise you may accidently delete files off your computer and this accident is mirrored on TM.
6. Restoring from TM is quite time intensive.
7. TM is a backup and not a data archive, and therefore by definition a low-level security of vital/important data.
8. TM working premise is a “black box” backup of OS, APPS, settings, and vital data that nearly 100% of users never verify until an emergency hits or their computers internal SSD or HD that is corrupt or dead and this is an extremely bad working premise on vital data.
9. Given that data created and stored is growing exponentially, the fact that TM operates as a “store-it-all” backup nexus makes TM inherently incapable to easily backup massive amounts of data, nor is doing so a good idea.
10. TM working premise is a backup of a users system and active working data, and NOT massive amounts of static data, yet most users never take this into consideration, making TM a high-risk locus of data “bloat”.
11. In the case of Time Capsule, wifi data storage is a less than ideal premise given possible wireless data corruption.
12. TM like all HD-based data is subject to ferromagnetic and mechanical failure.
13. *Level-1 security of your vital data.
Advantages:
1. TM is very easy to use either in automatic mode or in 1-click backups.
2. TM is a perfect novice level simplex backup single-layer security save against internal HD failure or corruption.
3. TM can easily provide a seamless no-gap policy of active data that is often not easily capable in HD clones or HD archives (only if the user is lazy is making data saves).
#2. HD archives
Drawbacks:
1. Like all HD-based data is subject to ferromagnetic and mechanical failure.
2. Unless the user ritually copies working active data to HD external archives, then there is a time-gap of potential missing data; as such users must be proactive in archiving data that is being worked on or recently saved or created.
Advantages:
1. Fills the gap left in a week or 2-week-old HD clone, as an example.
2. Simplex no-software data storage that is isolated and autonomous from the computer (in most cases).
3. HD archives are the best idealized storage source for storing huge and multi-terabytes of data.
4. Best-idealized 1st platform redundancy for data protection.
5. *Perfect primary tier and level-2 security of your vital data.
#3. HD clones (see below for full advantages / drawbacks)
Drawbacks:
1. HD clones can be incrementally updated to hourly or daily, however this is time consuming and HD clones are, often, a week or more old, in which case data between today and the most fresh HD clone can and would be lost (however this gap is filled by use of HD archives listed above or by a TM backup).
2. Like all HD-based data is subject to ferromagnetic and mechanical failure.
Advantages:
1. HD clones are the best, quickest way to get back to 100% full operation in mere seconds.
2. Once a HD clone is created, the creation software (Carbon Copy Cloner or SuperDuper) is no longer needed whatsoever, and unlike TM, which requires complex software for its operational transference of data, a HD clone is its own bootable entity.
3. HD clones are unconnected and isolated from recent corruption.
4. HD clones allow a “portable copy” of your computer that you can likewise connect to another same Mac and have all your APPS and data at hand, which is extremely useful.
5. Rather than, as many users do, thinking of a HD clone as a “complimentary backup” to the use of TM, a HD clone is superior to TM both in ease of returning to 100% quickly, and its autonomous nature; while each has its place, TM can and does fill the gap in, say, a 2 week old clone. As an analogy, the HD clone itself is the brick wall of protection, whereas TM can be thought of as the mortar, which will fill any cracks in data on a week, 2-week, or 1-month old HD clone.
6. Best-idealized 2nd platform redundancy for data protection, and 1st level for system restore of your computers internal HD. (Time machine being 2nd level for system restore of the computer’s internal HD).
7. *Level-2 security of your vital data.
HD cloning software options:
1. SuperDuper HD cloning software APP (free)
2. Carbon Copy Cloner APP (will copy the recovery partition as well)
3. Disk utility HD bootable clone.
#4. Online archives
Drawbacks:
1. Subject to server failure or due to non-payment of your hosting account, it can be suspended.
2. Subject, due to lack of security on your part, to being attacked and hacked/erased.
Advantages:
1. In case of house fire, etc. your data is safe.
2. In travels, and propagating files to friends and likewise, a mere link by email is all that is needed and no large media needs to be sent across the net.
3. Online archives are the perfect and best-idealized 3rd platform redundancy for data protection.
4. Supremely useful in data isolation from backups and local archives in being online and offsite for long-distance security in isolation.
5. *Level-1.5 security of your vital data.
#5. DVD professional archival media
Drawbacks:
1. DVD single-layer disks are limited to 4.7Gigabytes of data.
2. DVD media are, given rough handling, prone to scratches and light-degradation if not stored correctly.
Advantages:
1. Archival DVD professional blank media is rated for in excess of 100+ years.
2. DVD is not subject to mechanical breakdown.
3. DVD archival media is not subject to ferromagnetic degradation.
4. DVD archival media correctly sleeved and stored is currently a supreme storage method of archiving vital data.
5. DVD media is once written and therefore free of data corruption if the write is correct.
6. DVD media is the perfect ideal for “freezing” and isolating old copies of data for reference in case newer generations of data become corrupted and an older copy is needed to revert to.
7. Best-idealized 4th platform redundancy for data protection.
8. *Level-3 (highest) security of your vital data.
[*Level-4 data security under development as once-written metallic plates and synthetic sapphire and likewise ultra-long-term data storage]
#6. Cloud based storage
Drawbacks:
1. Cloud storage can only be quasi-possessed.
2. No genuine true security and privacy of data.
3. Should never be considered for vital data storage or especially long-term.
4. *Level-0 security of your vital data.
Advantages:
1. Quick, easy and cheap storage location for simplex files for transfer to keep on hand and yet off the computer.
2. Easy source for small-file data sharing.

What size Time Capsule - i.e. how big are Time Machine Backups

Hi all,
Just trying to decide which Time Capsule to get...my question is basically how big are Time Machine backups.
For example I have a MacBook with 100gb harddrive. At the moment about 80gb in use.
I assume the Time Capsule will immediately backup that 80gb but how big are the incremental backups. If I modify about a GB's worth of data each day, does this GB get moved to the capsule or is Time Machine cleverer than this and only backups the changes at byte level for example.
Any pointers, thoughts, etc. much appreciated.
Michael.

I have an iMac with a 500GB hard drive and a MacBook with an 80GB hard drive. The MacBook is nearing capacity but the iMac has around 90GB of data (the Time Machine backup is around 93GB). I will likely opt for the 1TB version as I am eligable for a Government discount bringing the cost down to £303 (£183 for the 500GB version). As it's unlikely that it will be easy to upgrade the Time Capsule HDD then I'm looking at future proofing as I do not want to have to repurchase in a few years. I'm also likely to buying a second MacBook or MacBook Pro in the coming months so it does make sense.
Secondly, you can use the Time Capsule as a shared storage area as well as for the Time Machine function.

How many concurrent Time Machine backups can be run on one Time Capsule?

I'm using a WD My Book Live (MBL) GbE NAS for the Time Machine backup for 2 MacBook (Pro and Air) over wireless-N. It's very often the MBL gives "verification error" to one or even two Macbooks if both of them are doing Time Machine (TM) backup at the same time. I want to see if the Time Capsule will be more reliable.
The Time Capsule 4th Generation is using a Western Digital WD20EARS 2TB Caviar Green SATA HDD ($79) which is slow in spindle speed (5400-rpm) and slow data transfer rate (Serial ATA-300), while the previous TC versions were using 7200-rpm HDD.
Apple said Number of Users can be supported by the TC 4th Gen is 50. Does it meant that 50 concurrent Time Machine backup processes can be supported:
1.     over the four GigaBit Ethernet ports?
2.     over 802.11n simultaneous dual-band WiFi?
How come I start getting "verification error" after I started adding 2 more backups to a TC used to backup just one MBP?

The Time Capsule 4th Generation is using a Western Digital WD20EARS 2TB Caviar Green SATA HDD ($79) which is slow in spindle speed (5400-rpm) and slow data transfer rate (Serial ATA-300), while the previous TC versions were using 7200-rpm HDD.
That was the original release .. I am not sure now the ones you buy will be the same. Anyway the Gen1 Gen2 (identical boards) were 50% slower than the new TC Gen3 Gen4 (identical boards) They are processor bound.. you can put an SSD in the TC and the actual transfer speed will not improve.. so forget the disk.. it is faster than wireless by a long way.. a bit lacking for gigabit but file transfer for TM is not actually hugely fast as the TM process the files.
Apple said Number of Users can be supported by the TC 4th Gen is 50. Does it meant that 50 concurrent Time Machine backup processes can be supported:
1.     over the four GigaBit Ethernet ports?
2.     over 802.11n simultaneous dual-band WiFi?
How come I start getting "verification error" after I started adding 2 more backups to a TC used to backup just one MBP?
Concurrent users is internet.. and that is stretching things. There is no way 50 users can run TM at once.. the disk isn't big enough anyway.
TC is designed for domestic setup.. 3 or 4 Macs.. would be fine.
Your last point, I don't follow .. you stated it was a WD MBL not a TC.. and TM is really not known to work well on anything but a TC. WD disks connected to a non-apple router?? is hardly going to get apple support.. even an airport extreme with USB is not supported. TM is not reliable on airdisks.. so it doesn't surprise me if the MBL corrupts on a daily basis.
Same can happen with any airdisk.
http://pondini.org/TM/Airport.html
But I have to say I don't think wireless has been great for TM reliability in later OS.. especially if you upgrade installed.. TM is pretty easy to corrupt itself. So you get lots of issues reported here with TM needing to wipe the old backups and start over.
The older OS .. BTW I use 10.6.8 still is very reliable to a non-apple NAS. Everything went to pot with Lion and the new security level of AFP.

Can I use a single external drive to maintain time machine backups for two Mac computers?

Hello
We have an older mac mini and macbook air. I have one Western Digital external USB drive. Can I use the same drive to hold and maintain time machine backups for both machines?
I already have the macbook air time-machined on the WD drive. I now want to backup the mac mini onto the same drive. Is it going to over write the time machine backup or is the software smart enough to maintain two separate files, partitions, whatever it does..?

It will maintain separate backups. Note that it's generally advisable to use separate drives for best practice backup, but yes, it will work for both computers, provided you have enough space (need generally 2-3 times the total used file space for both Macs).
Matt

Concerns ALL Time Machine Users. HOW TO MOVE Time Machine backups. Help !

Concerns ALL Time Machine Users :
MOVE (or COPY) Time Machine backups from a "x"To Disk to an "y"To greater disk.
Hello and thank you all for reading me,
First, excuse me if I make language errors (I'm French).
Secundo, I don't know if you'll find something interesting for you
in what I write about Time Machine and my own problems,
but there's a possibility also that YOU could perhaps help me.
I'm talking about Time Machine and his **** Backups.backupdb folder,
containing "*Name of your Mac*" folder,
this folder containing Time Machine backups, format : YYYY-MM-DD-HHMMSS
Time Machine doesn't recognize the backups it made *IF YOU MOVE THEM*.
I have perhaps a solution in this message.
You'll see below what kind of problem I (and you could) have.
Since 12/01/10, an Apple Adviser Level Two (and me)
are trying to understand how to move backups from TM1To Disk to, let's say, a bigger one.
My case is TM1,5To.
*Purpose :* Move 19 backups from Time Machine X disk to Time Machine Y disk.
Delete TMX disk Time Machine backups after that.
Make TMY disk the current used Time Machine Disk.
I don't remember exactly what we did before
(we even created a "root" account with password (dangerous to do),
but it didn't solve the problem),
but we finally copied :
TM1To > Backups.backupdb > *MacBook Pro* folder (containing 19 backups) into :
TM1,5To > Backups.backupdb folder.
The Copy application announced *16 hours !* (without antivirus, to remove absolutely).
So I said goodbye and thank you to my Apple Adviser. After *8 hours*, Copy failed.
BUT it had succeeded to copy *4 backups ONLY* (why ?) in TM1,5To.
I immediately verified and checked each of these with Get Info.
They had EXACTLY the same size (Byte to Byte) as in TM1To.
➔ BUT HERE IS MY OBSERVATION :
After designing TM1,5To as Time Machine Disk, I ordered it to Backup (now).
And what did Time Machine do in TM1,5To > Backups.backupdb ?
It created a *NEW folder*, named *MacBook Pro 2* !
➔ *I HAVE NO ACCESS* to TM1,5To > Backups.backupdb > *MacBook Pro* (4 backups copied from TM1To, remember) ;
➔ while I still *HAVE ACCESS* to TM1To > Backups.backupdb > *MacBook Pro* (19 backups) ;
➔ *AND I HAVE ACCESS* to TM1,5To > Backups.backupdb > *MacBook Pro 2*,
where Time Machine makes actually his backups.
*NOTE :* If you *change the name* of your computer,
Time Machine *changes automatically the name* of the folder who is in Backups.backupdb folder.
➔ ① I have *never seen* such protections (Sharing and Permissions).
You are not allowed to do anything. I've tried to change permissions,
first : "R+W", after that : "Make (Me) the owner", I can tell you : DON'T DO IT !
➔ ② It's impossible to install an OS on a Time Machine disk
(I thought it would allow better permissions).
OS Installer detects the existence of a Backups.backupdb folder
and refuses to install on this disk or partition.
I have now the bad intent to install minimal OS X
1) after deleting (how ?) this folder (but not its contents, how to move it ?)
and 2) declare *after that* the disk as Time Machine disk.
➔ ③ Time Machine doesn't backup OTHER Time Machine backups
(who are in an ancient-not-choosed-for-backups Time Machine disk) NOR backups this disk
(detects, once again, the existence of a Backups.backupdb folder).
AND you can't *absolutely not remove backups from the folder the're in*
(for me, *MacBook Pro* or *MacBook Pro 2*).
➔ ④ I didn't have time to do it, but I think there would perhaps be a solution
in restoring backups in partitions specially created to receive them (having the same name,
that sort of thing) and then re-backup these partitions (vicious and complicated).
There is a function on Mac OS X Install DVD : start with it, and then (do not install)
choose "*restore from Time Machine backup*" from the menu bar (it's called "Utilities", I believe).
➔ ⑤ I *absolutely don't understand* what follows :
— If I add (in my TM1To disk) the bytes of the 19 backups
in Backups.backupdb > *MacBook Pro* folder, I obtain about *1,8 To*.
— It's impossible (and not french).
— When I check the size used with Disk Utility (NOT with Get Info),
I find a correct (?) size : *about 750 Go*.
— What are Time Machine backups made of ?
It can't be aliases (because of their size, and because *aliases suppose originals,
and where could they be ?*), or am I wrong and becoming crazy ?
➔ ⑥ If you refer to the numbers shown at the end of this text (*4 backups*),
you'll see I could *delete duplicate elements* inside these 4 backups,
to win space (but *what kind* of space *if I delete aliases* ?).
Back-In-Time (see below) says he does it.
BUT is it really the OLDEST items I have to destroy (see ⑤),
when I don't know with what kind of ARTEFACT I'm acting ?
What does Time Machine delete to create more backup space ?
Is it REALLY the OLDEST backups it treats, or duplicates, OR ?
*What you can do :*
Find and go to Tri-Edre.fr or Tri-Edre.com/fr site (it's a french company
that creates small Mac applications since fifteen years at least,
I think I already bought them several programs in 1990) ;
Their program *Back-In-Time 1.4.4* is free (Trial) and complete to download (with PDF docs too).
It is *ENTIRELY DEDICATED* to Time Machine and *things you can't do* with.
Price is about 30 €, I think it's worth.
The TRIAL version you will obtain can only work on the LAST Time Machine backup,
but you will see what's featured *AND :*
You will ACCESS to ANY Time Machine backup you want
(It has to be the last of a serie of backups, but the serie you want.
I've bought the application and own an activation key, but you understand I can't give it to you
(it would not be ethic) and anyway you would be obliged to disconnect AirPort, Ethernet etc.
•➔ I have bought the application because I thought (it's said in PDF FAQs) I could IN THE END move Time Machine backup files, but it cannot, (I'm afraid).
*BUT ANY ACCESS PROBLEM IS SOLVED.*
•➔ Back-In-Time 1.4.4 can *delete :* duplicate backups, complete backups,
or duplicate items inside one or several Time Machine backups,
things that I believe impossible with Time Machine itself
(I've seen it offers to delete ALL occurences of an item) ;
•➔ The application can also restore anything you want, where you want
(but I think Time Machine does it too ?)
•➔ Believe it or not, but since I've bought it on 15/01,
I've only worked about 2 hours (no, much more) on it
and didn't make sufficient progresses (enhancements ?)
to talk of it with sufficient experience (I'm a bad guy, don't you think ?)
•➔ Tri-Edre offers on-line support, e-mail support (and so on),
and I EVEN didn't manage to join them, because I did many other things,
and also somewhat have been disgusted *not to be able to move* or copy
*(accessible by Time Machine after that)* backups,
and I also didn't succeed (*another Time Machine inconvenient*) to DESTROY an ".inProgress"
Time Machine (package) which doesn't work anymore (several interruptions while active),
date (and name) 2010-01-27-164345.inProgress, but is used (*with failure results*)
by Time Machine (it's turned off till I find how to destroy its **** ".inProgress" package.
•➔ I've asked my Apple Adviser Level 2 to wait for news from me
before working himself on the problem, and I think I will send him this message
to prove I haven't forgotten him.
•➔ I'll send it to Tri-Edre too, in the same move.
I hope those remarks to be useful for somebody, tell me if it has helped.
I will also publish this in any Time Machine topics I find here, and in MacRumors site too.
As you can see, I need help too … Does anybody have an idea ?
Perhaps if I used a specific Copy software, it could work ?
You'll see below an example of some time I've spent to study my problem
(you will think I'm crazy).
With my kind regards, and good luck if you have other Time Machine problems !
Olivier Herrbach
<Edited by Host>
Le but du jeu est de transférer toutes les sauvegardes Time Machine
d'un volume/partition que nous appelerons "1 To"
sur un volume/partition que nous appelerons "1,5 To".
*Je rappelle que les 4 sauvegardes effectuées par Time Machine sur le 1 To
n'ont pas été reconnues comme siennes par Time Machine sur le 1,5 To,
bien que strictement identiques en taille après leur copie.
J'ai remarqué dans Back-In-Time des fichiers invisibles (tels que "TimeMachine.log"
ou quelque chose de genre), et je soupçonne fort qu'ils n'ont pas été copiés et que Time Machine,
ne les trouvant pas dans le 1,5 To, a ignoré à cause de leur absence les 4 sauvegardes décrites ici.*
*Sauvegardes effectuées par Time Machine sur 1 To :*
Path : MacBook Pro > Volumes > 1 To > Backups.backupdb > MacBook Pro
MacBook Pro contient 19 items (dont un alias appelé "Latest") :
1°) 2010-01-02-045758 Size : 913.207 B for 41.888 items comprenant :
• Hitachi 1 To Size : 907.664 B for 41.887 items 7 folders
Différence avec 1°) = - 5.543 B - 1 item (1 folder)
2°) 2010-01-03-001957 Size : 982.211.325 B for 67.490 items comprenant :
• Hitachi 1 To Size : 901.516 B for 41.886 items 6 folders
Différence avec 1°) = - 6.148 B - 1 item - 1 folder
• Samsung 500 Go Size : 981.302.510 B for 25.602 items 4 folders
Total • + • = Size : 982.204.026 B for 67.488 items
Différence avec 2°) = -7.209 B - 2 items (2 folders)
— *Supprimer • Hitachi 1 To* dans 2010-01-03-001957. Comparer les dossiers.
3°) 2010-01-04-222709 Size : 5.241.032.819 B for 26.509 items comprenant :
• Samsung 500 Go Size : 5.187.330.874 B for 19.392 items 8 folders
Différence avec 2°) = + 4.206.028.364 B - 6.210 items + 4 folders
• StartUp Disk Size : 53.692.703 B for 7.115 items 4 folders
Total • + • = Size : 5.241.023.577 B for 26.507 items
Différence avec 3°) = - 9.242 B - 2 items (2 folders)
— *Supprimer Samsung 500 Go* dans 2010-01-03-001957. Comparer les dossiers.
4°) 2010-01-05-125449 Size : 9.428.705.396 B for 204.915 items comprenant :
• HD 250 Go Size : 9.374.308.265 B for 181.575 items 7 folders
• Samsung 500 Go Size : 692.898 B for 16.222 items 8 folders
Différence avec 3°) = - 5.186.637.976 B - 3.170 items
• StartUp Disk Size : 53.692.703 B for 7.115 items 4 folders
Total • + • + • = Size : 9.428.693.866 B 204.912 items
Différence avec 4°) = - 11.530 B - 3 items (3 folders)
— Supprimer • StartUp Disk dans 2010-01-04-222709. IDENTIQUE.

Dear James Pond,
Thank you once again, and, don't be afraid, I will be as short as possible,
but I need to use your last reply (I've cut all what was already said).
JP ➔ You can copy an entire set of backups, but you cannot copy part of it successfully. See #18 etc.
JP ➔ Read this from the first paragraph: "you cannot copy only selected backups,
or merge two (or more) sets of backups." The structure of the backups simply will not allow it.
I've read it, and found it regrettable. And I've also read, after that, what were the solutions under Leopard and Snow Leopard, and my conclusion is that it's a *dead end* for me. In short,
— I can't move (by drag and drop) the 1To's Backups.backupdb folder (containing MacBook Pro, 19 backups, access) to 1,5To, because there exists already the Backups.backupdb folder created by copy on 12/01 with Apple Assistance (containing [MacBook Pro, 4 backups of 19, no access] and [MacBook Pro 2, 15 backups, access]). I don't even know if it could be deleted by the copy (and I don't wanna do that anyway) ;
— I can't rename (and what for, I already forgot it) any Backups.backupdb folder nor delete it ;
— I can't copy any Computer'sName folder (entire set containing backups), being in a Backups.backup.db folder, into another Backups.backupdb folder ;
— I can't copy any (or all of an entire set) YYYY-MM-DD-HHMMSS backup(s), being in a Computer'sName folder, into another Computer'sName folder (even if it would be empty).
— Saying NONE in Time Machine Preferences and putting it to OFF is simply no use.
All is said. What I can try to do is :
— Delete (not with Finder, but with Back-In-Time) all duplicate things I find in all backups and also entire duplicate backups (I have full access to all with the software) ;
— Restore each of the reduced-to-minimum backups obtained in specially right-sized partitions wearing the YYYY-MM-DD-HHMMSS name of each restored backup. Time Machine doesn't backup his backups, but will backup these partitions.
I'm afraid to be actually completely running out of the target, when I read what I write … It's time to go to bed !
Reminder (OH) : Where did you find these amazing informations ?
JP➔ Some of it is detailed here: http://www.appleinsider.com/articles/07/10/12/roadto_maco[]sx_leopard_timemachine.html
➤ Thank you ;
JP➔ and here:
http://arstechnica.com/apple/reviews/2007/10/mac-os-x-10-5.ars/14
➤ Thank you too ;
JP➔ You have to understand the structure. When TM does the first backup, yes, it copies everything.
On subsequent backups, it copies what's new or changed, but also makes "hard links" (sort of like aliases) to the copies of the things that didn't change. That's how it can only back up a few things each time, but show you a complete "snapshot" of the way your entire system looked at the time of every backup.
➤ I'll do my best to understand.
JP➔ Time Machine deletes backups under two conditions. See the first part of #12 in the Frequently Asked Questions User Tip, also at the top of this forum.
Under normal circumstances, you should not have to delete any backups. See the rest of #12.
➤ I understood why Time Machine didn't delete oldest backups : they were not weeklies ones.
Reminder (OH) : How can I destroy the (corrupted ?) not working "2010-01-27-164345.inProgress" in 1,5 To, which causes Time Machine to abort any backup of any size I ask ?
JP➔ Why do you think it's corrupted? TM is designed to "recover" a partial backup.
➤ I'll verify that with the little Tools/Apps I discovered in your FAQ User Tip document and downloaded immediately.
Why didn't Apple tell me anything ? It's my fault, I'm perhaps not clear and not demanding enough more from them.
JP➔ You cannot install OSX on a disk containing TM backups. That's because they need to be on separate disks.
Technically, you could put them on separate partitions of the same disk, but that would not be a good idea.
➤ I never told you that (there would be no interest at all). I talked about the same location, to see if it would allow me more permissions, but if all works without doing it, it's really no use.
JP➔ Sorry, I don't know what that means.
➤ I'm sorry, I didn't explain : "but if all works" meant : Copy Backups.backupdb, "without doing it" meant : Install OSX.
➤ If I install an OSX BEFORE, Time Machine will REFUSE completely to backup on it, it's understood.
JP➔ Correct. The partition you're running from will not be an option in TM Preferences > Select Disk. That prevents TM from backing-up it's own backups!
➤ Would it be so absurd ? Maybe it could resolve my actual problem ?
I think you are right, but I don't know why. I trust you.
Reminder (OH) : "I will not bore you again except if I don't find a specific answer to an unknown-never-seen-incredible malfuction."
JP➔ Don't worry about that -- thats what this forum is for, especially if you're still having problems.
➤ It's seems in fact that there is no possible solution, except what I said above and is certainly crazy/out of subject.
Just try to be as clear and concise as you can.
And please don't post the same things repeatedly -- it wastes your time and ours, and can confuse other folks.
➤ You're absolutely right and I tried to do so this time, and I'm sorry because I see it's still (far) not enough (short).
Thank you once more. I wish you a good evening and week-end. Here it's 01:40 AM.
With my kind regards
Olivier Herrbach
[email protected]

HT3231 time machine backup for migration

How do I use time machine for migration from a Macbook to Macbookair?

See 'Trnasfer info from a Time Machine backup ..." - scroll down a bit to see it here:
http://support.apple.com/kb/PH14245

How to manage Time Machine backups

Is there any way to manage time Machine Backups?
The things I want to do are:
* Selectively trim old backups for files I longer need
* Delete whole backups to maintain a trimmer backup disk
* Restart the whole backup process from time to time (purge and start over)
I know how the backups works (read the Ars Technica article) but the file system won't give me permissions to manually purge data. I suppose I could mess with the permissions but I'm not sure the effect on TM.
After the upgrade to Leopard, and after I setup Time Machine I started to do a purge of old files and data I just don't need anymore. But of course now there's several backups of that data. And while I know TM uses hard links so its not taking up a lot of extra space, the Gig I could recoup may be worth it for the long haul of having backups.

Not really the original point of the question, but since you mentioned it...
Couldn't time machine be used as archival as long as you have space? Its incremental, its fairly efficient since it uses hard links, and even archives have old data you don't need.
But it does beg another question. It would be nice if Apple could provide a list of directories that could be excluded in the event you want to run a clean install and then restore only files that effect a user and his/her preferences.
I suppose the Home directory would be the simplest answer, but even that includes a lot of Apps and Library files that really aren't necessary.
Maybe its just best to exclude nothing and buy a bigger backup drive. And then maybe periodically start over. Which was one of my original questions.
How does one start over? Just turn off time machine and format the backup drive?
Just pondering (and a bit of rambling) at this point.

Time Machine backup for old computer has been named for new computer

On my new Time Capsule, I backed up the entire disk from my older computer. While consulting with a live help technician for an unrelated problem, he had me reset the Time Capsule using the newer computer. To resume use of the Time Machine backup from my older computer, I had to gain permission . . . and subsequently discovered the reason why. Reseting with the new computer caused the backup volume to be renamed with the new computer's name.
Sooo, 1) how do I correct the naming error, and 2) will further confusion occur when I then go to back up the new computer?

It may or may not ask you to reformat the disk when you set it up as the backup for that new computer. If it does, I think you can cancel it.
What I would do is open Migration Assistant, then import your applications/documents/etc. onto the new computer, and then use the Time Machine disk for backup (formatting it if it asks you to).
You'll at least have recent files and stuff like that, which may not be as good as an incremental history but at least it's something.

Continuity issue after Time Machine Backup for new Mac

I restore new Mac Mini (2014) with a Time Machine backup made on MacBook Air (13', 2012). Now handoff is not working on my MacBook because iCloud thinks that Mac Mini is MacBook Air now. I disabled iCloud on all devices and Handoff and other worked well on Air before I logged into iCloud on Mac Mini. What should I do to repair this issue?

That's not how you set up a new computer.
The warranty entitles you to complimentary phone support for the first 90 days of ownership.

Delete Time Machine Backups for old HD

I recently had my HD fail. Fortunatly I have a time capsule so all was not lost. A new HD was install and i sucessfully migrated my time machine backup to the new drive. However, time machine won't perform any new backups as the time capsule if full. As I understand it, a new HD is seen as a new device to backup so creates a new set of backups leaving the original ones from the previous HD untouched.
I have read various other threads about deleting old backups, but they all appear to refer to do this when you still have the original creator of the backup.
My qustion is this: How do I delete the old backups of the HD I no longer have?
Thanks.

I was recently faced with pretty well the identical problem. I found that simply moving the old backup to trash caused problems in that the trash folder could not be emptied because Time Machine backups have built-in links that, in effect, lock files from being deleted (that may not be a technically accurate description but I hope that it conveys the crux of the matter). Here's what I found to be the easiest solution:
1. Copy all files that you want to keep from the external hard drive to a folder (or desktop) on the computer.
2. Use Applications>Utilities>Disk Utility to partition the external hard drive. On a 1tB hard drive, I formatted the first partition as Mac journaled and using 750mB. The second partition used up the remainder of the drive and had the same format. I named each partition to suit my own preferences. This process deletes everything on the drive.
3. Copy the files you want to save, back from the computer to the second partition. Do this before setting up Time Machine or you may find that these files get backed up when you don't need them to be backed up.
4. Set up Time Machine to backup to the first partition. This first backup might take a few hours to complete.
This keeps backup separate from any other files that you want to store on the external hard drive and ensures that backups do not eat up disc space that you might need for other purposes. I understand that, when the backups run out of disc space, Time Machine starts to delete old ones.

I just installed Mountain Lion on my iMac that was previously running Snow Leopard. Bugt I found that some key applications no longer work, so I would like to go back to snow Leopard. I can't use time machine backups for this. what can I do?

I just installed Mountain Lion on my iMac. But In was dismayed to find that my Canon scanner software (Canoscan LIDE500F)no longer works. Nor do any of my MS offce applications. I tried to use time machine to reinstall Snow Leopard (my previous operating system), but unfortunately my time machine backups did not include system software. Also, the original system install disk that came with my iMac would not allow me to install Snow Leopard in place of Mountain Lion. I would appreciate it if somebody could tell me how to solve this problem.

The reason your Office doesn't work is because it is PowerPC code. If you will upgrade the 2004 Office to 2011 Office then that will work.
I don't understand how you managed to get your Time Machine backup to not backup the system.
Now if you still what to downgrade you will have to erase the disk and reinstall Snow Leopard. Most likely all of your application and then restore your data from Time Machine.
To me it sounds like it would be easier to upgrade your software and stay with Mountain Lion instead.
Allan

How to remove time machine backup from a mackbook pro used in target disk mode

Many months ago I (as my backup drive failed) I used my macbook pro in target disk mode to store the time machine backup of my iMac. How do I delete the backup on the macbook pro? I am running mountain lion on both machines. When I boot the macbook pro in target mode, it's not showing up in the finder on my mac.

When I boot the macbook pro in target mode, it's not showing up in the finder on my mac.
From the Finder menu bar, select
Finder > Preferences > General
and check the box marked Hard disks.

How to verify time machine backups for consitency

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