Does time machine retrieve deleted trash?

I think i may have accidentally deleted some pics used for wall and screen savers but not sure which ones, i have 15gb in the trash and would like to empty it but if anything were to go wrong would i be able to retrieve deleted trash files from time machine?

I do not think that Time Machine backs up your Trash folder at all. See this thread:
http://discussions.apple.com/thread.jspa?threadID=1208460

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Does Time Machine Ever Delete All Traces of a File?

I have a question. I have read up on Time Machine on various articles, posts, and documents across the web and I am having a hard time understanding exactly how time machine deletes files.
When a disk is full, does Time Machine ever make the decision to delete the last copy or version of a file, therefore completely erasing it off the disk forever? I know that Time Machine deletes older versions of files, but will it ever completely delete the last, final backup of a file to make space? If so, I can't imagine using Time Machine as a true piece of backup software. It seems like it would be useful in restoring your computer in an emergency, but as far as backing up files, it seems that it would be catastrophic, because it may choose to delete the last remaing version of a file to make space and you end up losing that file for ever.
Here is an example:
I create a file X.doc
Time Machine backs it up.
I modify X.doc
Time Machine backs up the copy, keeping both the original and the new copy on the backup drive.
I modify X.doc yet again.
Time Machine drive runs out of space. Time Machine deletes the oldest version of X.doc and backs up the new copy.
I create 10 more files unrelated to X.doc
Will Time Macine remove all remaining versions of X.doc to make space for the 10 new files???
I hope I am making sense.

Derek Doublin1 wrote:
Will Time Macine remove all remaining versions of X.doc to make space for the 10 new files???
The worst TM can do is delete all your older copies of files, not the most recent version.
If the drive is full, then it can't accept any more files period.
If you had a full 100GB boot drive and a 100GB TM drive, the TM drive would be a copy of the boot drive with no room for saved states.
If you changed a file on the full boot drive, then TM updates that file on it's full drive, there will be no copy of the previous version of that file.
TimeMachine makes for a poor pernament backup system, because lets say you do a major files addition to your boot drive, TM backs that up and can go ahead and delete files you realized you accidentially deleted just a few short days ago.
It's better than nothing and works ok for newbies, but more seasoned types use many backup methods in addition to TM, because corruption creep is possible with TM as well as malware as it's hooked up so often, in a lot of cases all the time.
Most commonly used backup methods

How does time machine handle deleted files

I've recently grown into a 1.5TB external hard drive where I back up my iMac through Time Machine. I'm a photography hobbyist who does a lot of processing work on my photos in Photoshop, therefore I'm regularly generating sizable data to back up.
My question is, using some hypothetical numbers:
Pretend I create 50GB of new data by importing a lot of photos onto my iMac, then Time Machine does it's thing before I can decide what photos I want to keep or trash. I later go back and edit my photo catalog and decide I only want to keep 1/2 of photos from that previous import, reducing that data to only 25GB. Will Time Machine keep those old pictures on my external drive, even though I deleted them from my iMac? Will Time Machine ever recognize I threw away those files, assume I don't want them, and overwrite them? Or is Time Machine going to keep using my my external drive to back up everything until I used up all of the externals space?
Message was edited by: Michael Streubert

Understanding how TM deletes things can be difficult, but I'll try to summarize it:
-TM will back up your system every hour.
-After 24 hours, TM will delete all but one of the 24 previous hourly backups. The one it decides to keep will become your "daily" backup. You have no control over which of those 24 backups it will select to keep as the daily.
-After 30 days, TM will start to delete the old daily backups too. It will keep 4 of the last 30 backups, one for each week.
-After your TM disk fills up, it will start to delete old backups to make room for new ones.
So, after you delete them from your main HD, the length of time that they kept on the TM drive can vary. If the files existed for only a few hours, then there is a good chance that they will be purged from the backups the following day. Or they might be kept for weeks or months, depending on if TM decided to keep those backups as the daily or weekly. It's kind of a crap shoot.
If the files existed on your main hard drive for between one and seven days, then they will remain on your TM backup drive for at least a month. After that they are at risk of being purged out.
If the files existed for more than a week, they will stay on your TM drive until it fills up. After that, they are at risk of being deleted.
I hope this helps.

Why does Time machine not delete old backups

I dont understand Why time machine is not deleting old backups. As it worked first time with the same size backup drive as the drive its backing up, I assumed it would just delete the old backup as needed. Do I need a bigger backup drive?

Roglee wrote:
I just want it to delete the old backup & replace it so i just have a copy. I guess i could just re format the drive each time but that just seems a waste of my time when TM should do this for me!
If this is all you want to do, turn off Time Machine, download SuperDuper! and use it for free. This will clone whatever drive you want and the free trial will erase your back up drive each time. I can't remember if it will let you choose what to back up or if it wants the entire drive. Also, I'm not sure if the Scheduler works with the free trial. Below are some verbiage for SuperDuper!. Looks like if you want Scheduling you will have to purchase a license.
Download Now!
You can download SuperDuper! v2.7.1 right now and back up and clone your drives for free— forever!
Buy Now!
Buy now to unlock scheduling, Smart Update (which saves a lot of time), Sandboxes, scripting and more!
Time Machine will keep making back ups and when it determines it needs space, it will delete older back ups. But it doesn't delete older ones each time it backs up.

Does time machine work with the trash folder?

Does time machine work with the trash folder? So if I have the entire aperture library backed up to the time machine. Is it safe to empty the trash folder in aperture? I am able to recover files from time machine later?

So make a top-level Project called "_Circular File". Put Images in there that you what to have out of your way but not discarded.
It really is good and proper to treat the Trash as trash. I instruct everyone to _empty_ the Aperture Trash at the end of _every_ session. The reason is this: it is the only time you will remember whether it is safe to delete the items in there. If you wait, you will then waste time trying to answer "Did I really mean to throw that out?" or, periodically, you'll give up trying to remember, and will empty the Trash without reviewing it. At the end of every session, examine the Trash, confirm that the items there are trash, and empty it.
Shocking, perhaps, but you should also empty your system trash every day. The real-life equivalents are good guides here. No-one in an office hoards their trash. If you mean to throw something out, throw it out. If you don't mean to throw it out, do not put it in the trash.
I don't know how TM handles the Aperture Trash. I do know, however, that I would not expect this behavior to remain consistent, and would absolutely recommend against a workflow based on it.

HT201250 Every time I add/delete music to itunes, does time machine backup my entire library? If so can I limit backup just to added music?

Usimg time machine-every time I add/delete music in itunes library does time machine backup entire file? If so,an I set it up to just backup added music?

It shouldn't be backing up the whole thing again, just the changes.

Does Time Machine bundle backup sets when it deletes a month's daily sets?

I'm asking this question to find out if I can delete the all but the last week in a month, each month, in order to extend the useful capacity of my backup drive.
In some backup systems, a periodic "bundle" is made when previous sets are deleted, so for instance, the last backup of the month has the cumulative hourly changes of that month. In this way, transient files which appear and disappear within the month are retained in the monthly backup.
Is this true of Time Machine? Exactly what does Time Machine do? Does it simply wipe out the daily sets and chose the last one to be the "weekly backup?" Or something more sophisticated and useful?
Thanks for any insight!

I've devised a little experiment to discover Time Machine's behavior in this regard:
On my Time Machine's backup schedule, August 27 corresponds with the end of a week. So, on August 26 at 9:15AM, I created the following [folder]/file structure:
[Time Machine Test -Transient Roll-up]
   [Time Machine Test - 1. Hourly Transience
      A one hour lifetime file.rtf
   [Time Machine Test - 2. Daily Transience
      A one day lifetime file.rtf
   [Time Machine Test - 3. Weekly Transience
      A one week lifetime file.rtf
At 10:10AM of that day I removed
[Time Machine Test - 1. Hourly Transience
      A one hour lifetime file.rtf
At 10:10 the next day, August 27, I removed
   [Time Machine Test - 2. Daily Transience
      A one day lifetime file.rtf
On August 28 at 10:30AM, acheck today of the earliest backup of this structure reveals only the following:
[Time Machine Test -Transient Roll-up]
   [Time Machine Test - 3. Weekly Transience
      A one week lifetime file.rtf
I draw the conclusion that transient files within a time period are not subject to a "roll-up" mechanism that displays all changes after out-of-date files are deleted by Time Machine. Thus, for instance, any file that appeared and disappears during an hour will be lost in Time Machine's daily history. Similarly, files that only persist for a day will be lost in the weekly history. And, presumably, if one wanted to choose a week which represented an accumulation of transient changes during the month it would be impossible to do so.
Even so, if one wants to manage only one backup volume, rather than accumulating a stack of them over the years, one might well think about selectively deleting all but one week per month in the earliest backups available, as the projected remaining time approaches less than a few weeks. BackupLoupe's Statistics gives an estimate of remaining time left for backups on a volume, and I would suggest using that as a forecast, unless others have experience to the contrary.
Hope this is useful. It certainly is to me.

HT201250 Does Time Machine delete files in back-ups that are deleted on my Mac?

Does Time Machine delete files in back-ups that are deleted on my Mac? IOW....if I need to restore a whole back-up, I don't want to restore previously deleted files.

Does Time Machine delete files in back-ups that are deleted on my Mac?
Not immediately. When space starts to get tight, Time Machine will start to delete the oldest file(s) to make more room, but this won't occur for some time.
if I need to restore a whole back-up, I don't want to restore previously deleted files.
You won't if you choose to restore from a backup that occurred after the date that you deleted the file.
If you absolutely do not want to keep the file in your Time Machine backups at all, you do have the option to go into Time Machine, find the file, and manually delete all versions of the file from past dates.

Accidentally deleted Time Machine backups into Trash...

I messed up big time -- I moved my Time Machine backups into Trash from Finder. I've looked around online and it seems like I've really screwed myself over. I can't reformat/erase the disk because I have about 1.4 TB of other material on it and I don't have any other disk big enough to temporarily hold all these files. Is there any way to either restore or delete the backups without harming the rest of the files on the disk?

Full Details Here from Pondini....
Can't empty the trash after deleting backups via the Finder

I have just started using Time Machine. I was thinking about deleting old E-Mails on my Mac to clean. Does Time Machine back up the E-Mails , if so how can I find them in Time Machine ??

I have just started using Time Machine. I was thinking about deleting old E-Mails on my Mac to clean. Does Time Machine back up the E-Mails , if so how can I find them in Time Machine ??

If you back up your mac before deleting your emails, Time Machine should back up your e-mails.
I never tried this so i'm not sure to find them in Time Machine. To browse in your backups simply click the Time Machine icon in your dock. In the right bar, you can select an backup. Than you can browse in finder, in your backkup.
EDIT: Just browsed and CT above was right. This topic might help you:
https://discussions.apple.com/message/20154303#20154303

When using Time Machine to back up to external drive, does Time Machine back up content in your Trash folder?

When using Time Machine to back up to external drive, does Time Machine back up content in your Trash folder?

Go to System Preferences (under the Apple menu) > Time Machine and click the Options button. Click the "+" button in the lower left. In the resulting dialog, check the Show invisible items checkbox. Go to your home folder and look for Trash. Click the Exclude button in the lower right.

Does Time Machine backup system files (/usr/local/*)?

Does Time Machine backup system files (/usr/local/*)?
If so how do you locate them in the Time Machine interface?
If I go into Time Machine mode and type say "/usr/local" in the Time Machine search bar I get nothing although I can open a terminal application and cd to /usr/local and see bin, lib, include, etc.
Of course I can never see /usr/local in Finder either ... only at the command line.
Thanks.

John, another tech pro ("baltwo") suggests:
Run this in the Terminal:
defaults write com.apple.finder AppleShowAllFiles 1
OPTION-click and hold on Finder's Dock icon->Relaunch which reveals all hidden files. Then, look for that file and delete it. To hide all of those, use the same command, substituiting zero for the one, and relaunch the Finder.

Time Machine is Deleting Old backups

Disconnected my MacBook Pro from its hard drives for two days. Re-connected, and ran Time Machine. It backuped up as normal. I walked away, seeing "49.8GB free of 499GB" on that external hard drive. I come back and Time Machine is "Deleting Old Backups ... " - and now 135GB free, and still deleting.
I realize that TM auto-deletes ... but does this sound "normal" to start its own deletions when there was 49GB remaining on a 500GB drive?
It's still deleting ...
Clint Bradford

If I said I connnected two disks, I apologize. One 500GB external hard drive is dedicated to just being a Time Machine backup for my 17" MacBook Pro.
Not sure what has happened ... but Time Machine cleared up space, and is now performing a 110GB backup ... kinda like it doesn't know it's the same computer attached to it.
This is NOT a critical problem ... I have full backup elsewhere. Just a little weirdness today ...
Clint Bradford

How Does Time Machine Help If... iCal Data Lost?

Hi,
How does Time Machine help if, say, your iCal database gets messed up? Or, how does it help if you accidentally delete all your playlists from iTunes? I'd be interested to know.

That's a very good question (although probably better directed at Apple than us). Because Time Machine is new and Apple's in house programs handle data in different ways, there are a range of different means of recovering data for different applications. Not very user friendly and iCal is one of the least user friendly ones.
As an experiment, because I don't make much use of iCal and have no real idea how it works, I tried to find out how to restore its data. Starting with working with the application: nope, not TM aware at present. OK, where does it restore its data? Next step Spotlight where, as it happens, the obvious search "Calendars" brings up a folder in ~/Library labelled that with a whole lot of mysterious stuff in it. I'm pretty sure that restoring that folder would do the trick. No doubt, if you could figure out which Calendar belongs to what in the above folder you could restore a single calendar that was causing problems. Still, Apple's clearly got some work to do to make this more transparent. Roll on iCal4!
(By the way Mail also restores from within the program).

HT201250 How does Time Machine allocate backup data.

I have over 150GB to back up with time machine and only 256GB HD to use, does Time Machine back up all files each time or only files updated after the last backup?

Time Machine first makes a full backup, and then, it makes incremental backups backing up only the files that have changed since the last backup. When the Time Machine drive gets full, Time Machine will start deleting old backups in order to be able to make new backups. If you want more information about Time Machine, see > http://pondini.org

Does time machine retrieve deleted trash?

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