Time Machine backups have become very slow

My time machine backups to a USB attached external drive (dedicated to backups) have recently slowed horribly. They are taking timeframes like 30 minutes to even an hour even when nothing has changed on my system. They didn’t do that previously (usually just a couple of minutes for same).
Console ouput below. I see MDS errors. What are those? Are they a concern?
I have run Disk Utility on both my hard drive and the time machine drive and they look okay.
2/20/13 1:14:21 PM
com.apple.backupd[20378]
Starting standard backup
2/20/13 1:14:21 PM
com.apple.backupd[20378]
Backing up to: /Volumes/iMac Time Machine Backup/Backups.backupdb
2/20/13 1:16:35 PM
com.apple.backupd[20378]
No pre-backup thinning needed: 1.87 GB requested (including padding), 126.14 GB available
2/20/13 1:21:38 PM
trustevaluationagent[20855]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:21:38 PM
trustevaluationagent[20855]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:21:38 PM
trustevaluationagent[20855]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:21:38 PM
trustevaluationagent[20855]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:21:38 PM
trustevaluationagent[20855]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:21:38 PM
trustevaluationagent[20855]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:21:38 PM
trustevaluationagent[20855]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:21:38 PM
trustevaluationagent[20855]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:21:38 PM
trustevaluationagent[20855]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:21:41 PM
Xmarks for Safari[225]
*** __NSAutoreleaseNoPool(): Object 0x26b3b30 of class OC_PythonString autoreleased with no pool in place - just leaking
2/20/13 1:27:13 PM
mDNSResponder[19]
Double NAT (external NAT gateway address 192.168.1.33 is also a private RFC 1918 address)
2/20/13 1:29:43 PM
com.apple.backupd[20378]
Copied 317836 files (4.8 MB) from volume Macintosh HD.
2/20/13 1:36:38 PM
trustevaluationagent[21821]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:36:38 PM
trustevaluationagent[21821]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:36:38 PM
trustevaluationagent[21821]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:36:38 PM
trustevaluationagent[21821]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:36:38 PM
trustevaluationagent[21821]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:36:38 PM
trustevaluationagent[21821]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:36:38 PM
trustevaluationagent[21821]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:36:38 PM
trustevaluationagent[21821]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:36:38 PM
trustevaluationagent[21821]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:36:41 PM
Xmarks for Safari[225]
*** __NSAutoreleaseNoPool(): Object 0x26b3b30 of class OC_PythonString autoreleased with no pool in place - just leaking
2/20/13 1:38:44 PM
com.apple.backupd[20378]
No pre-backup thinning needed: 1.78 GB requested (including padding), 126.05 GB available
2/20/13 1:38:44 PM
com.apple.backupd[20378]
Waiting for index to be ready (100)
2/20/13 1:42:13 PM
mDNSResponder[19]
Double NAT (external NAT gateway address 192.168.1.33 is also a private RFC 1918 address)
2/20/13 1:46:21 PM
com.apple.backupd[20378]
Copied 30916 files (734 KB) from volume Macintosh HD.
2/20/13 1:49:37 PM
com.apple.usbmuxd[32]
_heartbeat_failed heartbeat detected detach for device 0x90-192.168.0.100:0!
2/20/13 1:51:38 PM
trustevaluationagent[22798]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:51:38 PM
trustevaluationagent[22798]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:51:38 PM
trustevaluationagent[22798]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:51:38 PM
trustevaluationagent[22798]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:51:38 PM
trustevaluationagent[22798]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:51:38 PM
trustevaluationagent[22798]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:51:38 PM
trustevaluationagent[22798]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:51:38 PM
trustevaluationagent[22798]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:51:38 PM
trustevaluationagent[22798]
MDS Error: unable to create user DBs in /var/folders/Oc/Oc3INPvLEJWCoHu2KSkm-E+++TI/-Caches-//mds
2/20/13 1:51:40 PM
Xmarks for Safari[225]
*** __NSAutoreleaseNoPool(): Object 0x26b3b30 of class OC_PythonString autoreleased with no pool in place - just leaking
2/20/13 1:52:20 PM
com.apple.backupd[20378]
Starting post-backup thinning
2/20/13 1:57:13 PM
mDNSResponder[19]
Double NAT (external NAT gateway address 192.168.1.33 is also a private RFC 1918 address)
2/20/13 1:57:31 PM
kernel
CODE SIGNING: cs_invalid_page(0x1000): p=23181[GoogleSoftwareUp] clearing CS_VALID

Problems such as yours are sometimes caused by files that should belong to you but are locked or have wrong permissions. This procedure will check for such files. It makes no changes and therefore will not, in itself, solve your problem.
First, empty the Trash.
Triple-click the line below to select it, then copy the selected text to the Clipboard (command-C):
find . $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 -o -acl $ 2> /dev/null | wc -l
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window (command-V). The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear.
The output of this command, on a line directly below what you entered, will be a number such as "41." Please post it in a reply.

Similar Messages

Time machine backups have slowed considerably since my installation of Mavericks -- why?

Ever since installation of Mavericks, time machine backups have slowed to a crawl. The message preparing backup used to to take 10 seconds to a minute, now it takes 5 minutes. The status of the backup used to show 10mb's of 80 mb's backed up, and take under 1 minute, now it takes 5 minutes. Finally cleaning up notice, and the time to clean up has increased significantly. My backups go to an external HD (7200rpm) connected vis firewire 800, that has approx 180 gigabytes available of its 1 terrabybyte capacity.

I upgraded to Mountain Lion a few weeks ago. Everything was fine with Time Machine until a few of days ago.
Same problem others described: extremely slow, taking hours to back up just a few MB.
I verified the Time Capsule drive and my Mac hard drive - no problems found.
I then erased the Time Capsule and started Time Machine. It did the full backup in a fairly reasonable amount of time (several hours, but not unexpectedly long).
When it started its first incremental backup, it reverted to the same problem: extremely slow, but it did finish eventually.
I then shut down the Mac and restarted (power cycled) the Time Capsule. Then I started up the Mac and told Time Machine to back up now. It backed up 30+ MB in just a few minutes, so it seems back to normal. We'll see how it goes when the next scheduled backup starts up.
But you might try rebooting the Time Capsule (and your Mac).
By the way, when it was in the middle of the extremely slow backup, I disabled Norton Anti-virus and it didn't seem to speed it up any. But I left it disabled after I rebooted the Time Capsule and had a successful incremental backup, so I'm not sure yet if Norton is a factor.

Time machine backup keeps going up - slow over via airport extreme

I have a 2tb external drive that ive just connected to my airport extreme, purely to use for time machine backups.
I realise the first backup will take a while, my hard drive currently has 810GB of data on it according to the mac itself. When i first started the backup time machine said the backup was 865GB, however its now been going for over 4 days and still hasnt completed, its on about 830gb now, but it keeps going up, its now saying 830gb of 920gb completed.
So why does the backup take a ridiculous amount of time (the MBP is plugged into the airport via ethernet, then the drive to airport via usb) i thought using ethernet directly to the airport would speed it up, its purely over cable so why is it so slow?
And why is my backup now saying its 920gb when my hard drive only has 810gb in total of data?

That's one Apple's more infuriating messages, but there's usually another phrase after "Time Machine Error."
Most likely, Time Machine is having a problem with a file, but they don't bother to tell you that.
See #C2 in Time Machine - Troubleshooting. It will probably lead you to #C3.
It will show you how to locate the message(s) that describe the problem, then help you fix it. If that doesn't help, post back with details, including all the messages, what you've done, and the results.

Safari and iTunes somehow have become very slow

I am not sure that it is because of my upgrade to 10.5.6 but it feels like it started at the same time. Safari has become very very slow on most of the pages, and don't finish loading some pages (after 2 minutes). It is so bad that exactly the same pages ( I have tested about 20 of them) are up to 10 times faster on Firefox. I have the same performance issues with navigating in iTunes. I have used the maintenance scripts from Onyx not later than today and it did not change anything. Does anybody has the same issue ? Found a solution ?
Thank you in davance.

Thank you very much iBod, you did point the finger to the correct problem. This is a DNS issue which is the result of two bugs, one of them appears to be Leopard 10.5.6 but it is only affected because of an issue in my DSL/WLAN Router. The latest FritzBox router which you will mainly see in Germany and Austria are affected by this issue. The issue has been made public, and there will be a fix in the next few days. If you set the DNS servers like described in iBod solution, you will definitely have a workaround that works.
Thank you again for your help.

Time Machine backup to Drobo seems slow. What is normal write speed?

I just got a Drobo with Firewire 800. I'm using it exclusively for Time Machine backups. The write speed to the Drobo appears to be about 3 to 4 mb/s. Is that normal? Anyone getting the same or similar speed? I used to backup to a LaCie drive (which, of course, died) and it was way faster.
Message was edited by: Hey Cricket
Message was edited by: Hey Cricket

Chr!x wrote:
* iMac hard drive size occuped : 160 Go (658.000 files)
* Backup made with CCC in 4 hours.
* First Time Machine backup still in progress (actually, 90 Go in 9hours...)
That's much too slow. Try the things in #D2 of the Time Machine - Troubleshooting *User Tip,* also at the top of this forum.
I don't understand with CCC is so fast comparing Time Machine initial backup. I hope incremental TM backup faster...
Some of the difference is that CCC is most likely doing a "block copy;" whatever's in each block on the internal is copied to the external; no checking, no indexing, etc. It assumes everything is in order.
Time Machine is making all the directory entries, hard links, etc., file by file, and indexing each file. Overall, it shouldn't take much longer than CCC (I use both), so one or more of the things in #D2 should greatly reduce the TM backup time.

Time Machine Backup File Size : Very Small compared to MAC HD

I did my first backup and my MAC HD where everything is at is about 319.73 in capacity and Im only using 167.78 storage space. When the backup is complete the file size is only 40Gb , I find that so odd , is that normal will everything restore to its original state If I had to reinstall the OS ?

OK, here it is
Starting standard backup
Attempting to mount network destination using URL: >afp://[email protected]/Data
Mounted network destination using URL: afp://[email protected]/Data
Running backup verification
QUICKCHECK ONLY; FILESYSTEM CLEAN
CopyHFSMeta: cannot replay journal: Invalid argument
Backup verification passed!
QUICKCHECK ONLY; FILESYSTEM CLEAN
Disk image /Volumes/Data/myname’s Computer (2).sparsebundle mounted at: /Volumes/Time >Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
Detected system migration from: /Volumes/Dom's HD
No pre-backup thinning needed: 21.02 GB requested (including padding), 889.63 GB available
Waiting for index to be ready (101)
Copied 26534 files (22.3 GB) from volume Macintosh HD.
Event store UUIDs don't match for volume: Macintosh HD
Starting post-backup thinning
No post-back up thinning needed: no expired backups exist
Backup completed successfully.
Ejected Time Machine disk image.
Ejected Time Machine network volume.
So, is the problem that I used Time Machine on my previous machine to backup to a different volume? Then perhaps it has just tried to backup things that may have changed in the couple of months since I last backed up on that machine?
If so, how do I get time machine to start afresh with my new Time Capsule?

How many GB does a typical Time Machine backup have?

I have always backep up my Mac to a 500GB external USb hard drive (Seagate, pretty small). It is only filled up about 90 GB so far and its been about a year. (my backups are NOT every day, mostly every two weeks. Every backup is about 2-3 GB and takes 10-15 minutes to complete.
I recently got a Seagate GoFlex Home for wireless backups. However, my first backup says over 200 GB to back up with a wait itme of 7-8 hours. This doesn't seem right... Am I doing something wrong?
I also still haven't found out a way to transfer my old Time Machine Backups to the new GoFlex.
It's backing up right now, and I am continuing to do so until I get a reply that says I shouldn't be. If anyone has an answer, please reply A.S.A.P.
Please Help.
Thanks in advance.

Well I cancelled this backup already, to figure out the prolem first.
Via the Widget, this is what i have so far:
Starting manual backup
Attempting to mount network destination URL: afp://[email protected]/GoFlex%20Home%20Backup
Mounted network destination at mount point: /Volumes/GoFlex Home Backup-1 using URL: afp://[email protected]/GoFlex%20Home%20Backup
Disk image /Volumes/GoFlex Home Backup-1/Andrew's Mac.sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
Event store UUIDs don't match for volume: Andrew_MAC
Deep event scan at path:/ reason:must scan subdirs|new event db|
Finished scan
Found 60626 files (195.01 GB) needing backup
235.04 GB required (including padding), 1.66 TB available
Copied 26836 files (1.62 GB) from volume Andrew_MAC.
Backup canceled.
Ejected Time Machine disk image: /Volumes/GoFlex Home Backup-1/Andrew's Mac.sparsebundle
Ejected Time Machine network volume.
Could the 200 GB backup be because i changed the name of my home folder and now its backing up the permissions changes of all of the files?

Time Machine Backups have gone missing

I am trying to troubleshoot a TM issue and I could use some help. I recently made some major changes to iPhoto in an attempt to get rid of some very large duplicate iphoto libraries. I made sure I had a valid TM backup and then I began the process. After making some big changes using iPhoto Library Manager, I tried to do another backup with TM and got the following message:
"This backup is too large for the backup disk. The backup requires 144.70 GB but only 68.78 GB are available."
I am backing up to a firewire 500GB external drive. The same drive that I have been backing up to for at least a year with no interuptions or errors. The drive is only used to back up this computor. (iMac 266,10.7.5).
Finder shows only one successful backp folder and one ".inprogress" file even though I have been backing up to this drive for a long time. Curious, I went in to Time Machine to look at the time line and it concurs with the Finder window: only one backup available.
My question is what happened to the rest of my previous backups and is there a way to look back and see what happened to them? Would TM overwrite all the older files? I am afraid that I need to back up my backups. Soon I will need 6 different externals to cover all the backups! Luckily I haven't lost anything yet.
I did do a disk check on the external drive (with DU) and found no errors or other problems.
Is Time Machine becoming less reliable as our hard drives get bigger??
Thanks in advance for any help or advice you may provide.
Capt Ron

Ah! The proverbial missing information. In that case, I can't help further, since I don't use TM. If the FAQs and troubleshooting sections don't discuss your issue, you'll have to wait for a TM maven to pop in.

Time machine back up is very slow and now has restarted

Just bought a new 500gb G Drive at the Apple Store to use on my MBP. Got home, connected the drive and launched Time Machine. Said the back would take 10 days . I figured, OK that's slow but at least it will get done. Checked the MBP this AM and now -- after saying there was 2 days left to complete the back up of about 90 gb remaining - it has apparently restarted and now shows only 2gb as backed up.
I ran "sudo tmdiagnose" because I read on one of the other boards here that it would successfully have TM backup at normal speed ... but it did not work.
Help please...

If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Enter the word "Starting" (without the quotes) in the String Matching text field. You should now see log messages with the words "Starting * backup," where * represents any of the words "automatic," "manual," or "standard." Note the timestamp of the last such message. Clear the text field and scroll back in the log to that time. Select the messages timestamped from then until the end of the backup, or the end of the log if that's not clear. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message.
If there are runs of repeated messages, post only one example of each. Don't post many repetitions of the same message.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Some personal information, such as the names of your files, may be included — anonymize before posting.

Time Machine backups have not worked since upgrade to Lion OS X

I get the following error message when trying to use Time Machine - "The backup was not performed because an error occurred whilecopying files to the backup disk. The problem may be temporary. Try again later to back up. Ifthe problem persists, use Disk Utility to repair your backup disk."

Not one of Apple's better messages.
It's having a problem with a particular file, but there's no hint of that.
See #C3 in Time Machine - Troubleshooting.

Downloading movies on Apple TV have become very slow lately. Previously an HD movie could be downloaded in less than a minute. I have an internet with speeds up to 30MPS. Latest generation of Apple TV and software up to date. Any suggestions.

Recently in the last 2-3 weeks, I've noticed that downloading a movie from iTunes via Apple TV has become painfully slow. Previuosly, I could download an HD movie in less than a minute. My internet speed is 30MPS. I installed the lastest Apple TV software. Nothing else has changed. I have the latest generation Apple TV.Is anybody else having a similar problem? Appreciate any ideas.

The limitation of approximately 200 titles has been discussed before, we can't be sure whether it will be something that gets fixed or not. I'm not really sure what your other issues are, if I use search instead of lists, I find whatever I want and am able to rent or purchase subject to those options being available for that particular title.

Time Machine backup painfully slow all of a sudden

For some reason my time machine backups have become painfully slow for some reason. They were fine earlier today, then IIRC I booted windows, then booted back into OSX to run a backup. Despite there being only 1 or two changes (files added to the system) time machine began "preparing backup" by going through all the files on my HDD! Now, it is backing up, but at the rate of about 5 Kb/s!
Something is wrong. I've tried deleting the progress file in the backup folder and "resetting" TM by deselecting the backup drive and selecting it again. Nothing worked. Why would TM be so slow all of a sudden?
Has anyone any ideas?

iBookguy wrote:
No pre-backup thinning needed: 18.98 GB requested (including padding), 205.25 GB available
Copied 105384 files (7.2 MB) from volume Mac OSX.
That is a bit suspicious, but not necessarily wrong. Something caused it to think about 16 GB had been changed (it adds 20% for the "padding" in the message).
How are you running Windoze? Is it on a separate partition? If you're running it via virtualization software, with the vm file on an OSX disk but excluded from TM, that's a possible explanation.
105384 files in only 7.2mb? I doubt it...something seems fishy
Those counts are nearly always very high, and sometimes crazy high. There's some indication it's counting all the metadata, extended attributes, etc., as separate files.
If in doubt, boot up from your Install disc and do a +*Repair Disk+* on your boot volume. Then reboot normally and run another backup. That should trigger a "deep traversal," where TM will compare everything on your system with it's backups, to be sure it's got everything it should.

My internet has become very slow on Macbook Pro

I don't know what happened but since few days my internet has become very slow on all sites It takes ages for a youtube video to be played. I sometimes to refresh a page for it to appear.
Safari, Firefox and Chrome all 3 have become very slow.
I tried changing my wireless internet 3 times but all the time it is slow.
I have had my laptop for more than 3 years now.

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
You may not be able to understand the script yourself. But variations of the script have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message.
Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
4. Here's a summary of what you need to do, if you choose to proceed:
☞ Copy a line of text in this window to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
5. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode, under the conditions in which the problem is reproduced. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(Software Hardware Memory Diagnostics Power FireWire Thunderbolt USB Fonts SerialATA 4 1000 25 5120 KiB/s 1024 85 \\b%% 20480 1 MB/s 25000 ports ' com.clark.\* \*dropbox \*genieo\* \*GoogleDr\* \*k.AutoCAD\* \*k.Maya\* vidinst\* ' DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH -86 "` route -n get default|awk '/e:/{print $2}' `" 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB com.apple.AirPortBaseStationAgent 464843899 51 5120 files );N5=${#p[@]};p[N5]=` networksetup -listnetworkserviceorder|awk ' NR>1 { sub(/^$[0-9]+$ /,"");n=$0;getline;} $NF=="'${p[26]}')" { sub(/.$/,"",$NF);print n;exit;} ' `;f=('\n%s: %s\n' '\n%s\n\n%s\n' '\nRAM details\n%s\n' %s\ %s '%s\n-\t%s\n' );S0() { echo ' { q=$NF+0;$NF="";u=$(NF-1);$(NF-1)="";gsub(/^ +| +$/,"");if(q>='${p[$1]}') printf("%s (UID %s) is using %s '${p[$2]}'",$0,u,q);} ';};s=(' /^ *$|CSConfigDot/d;s/^ */ /;s/[-0-9A-Fa-f]{22,}/UUID/g;s/(ochat)\.[^.]+(\..+)/\1\2/;/Shared/!s/\/Users\/[^/]+/~/g ' ' s/^ +//;/de: S|[nst]:/p;' ' {sub(/^ +/,"")};/er:/;/y:/&&$2<'${p[10]} ' 1s/://;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: [^EO]|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[11]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ N;/:.+:/d;s/ *://;b0'$'\n'' };/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};$b0'$'\n'' d;:0'$'\n'' x;s/\n\n//;/Apple[ ,]|Genesy|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' $0&&!/ / { n++;print;} END { if(n<200) print "com.apple.";} ' ' $3~/[0-9]:[0-9]{2}$/ { gsub(/:[0-9:a-f]{14}/,"");} { print|"tail -n'${p[12]}'";} ' ' NR==2&&$4<='${p[13]}' { print $4;} ' ' END { $2/=256;if($2>='${p[15]}') print int($2) } ' ' NR!=13{next};{sub(/[+-]$/,"",$NF)};'"`S0 21 22`" 'NR!=2{next}'"`S0 37 17`" ' NR!=5||$8!~/[RW]/{next};{ $(NF-1)=$1;$NF=int($NF/10000000);for(i=1;i<=3;i++){$i="";$(NF-1-i)="";};};'"`S0 19 20`" 's:^:/:p' '/\.kext\/(Contents\/)?Info\.plist$/p' 's/^.{52}(.+) <.+/\1/p' ' /Launch[AD].+\.plist$/ { n++;print;} END { print "'${p[41]}'";if(n<200) print "/System/";} ' '/\.xpc\/(Contents\/)?Info\.plist$/p' ' NR>1&&!/0x|\.[0-9]+$|com\.apple\.launchctl\.(Aqua|Background|System)$|'${p[41]}'/ { print $3;} ' ' /\.(framew|lproj)|\):/d;/plist:|:.+(Mach|scrip)/s/:[^:]+//p ' '/^root$/p' ' !/\/Contents\/.+\/Contents|Applic|Autom|Frameworks/&&/Lib.+\/Info.plist$/ { n++;print;} END { if(n<1100) print "/System/";} ' '/^\/usr\/lib\/.+dylib$/p' ' /Temp|emac/{next};/(etc|Preferences|Launch[AD].+)\// { sub(".(/private)?","");n++;print;} END { print "'${p[41]}'.plist\t'${p[42]}'";if(n<500) print "Launch";} ' ' /\/(Contents\/.+\/Contents|Frameworks)\/|\.wdgt\/.+\.([bw]|plu)/d;p;' 's/\/(Contents\/)?Info.plist$//;p' ' { gsub("^| |\n","\\|\\|kMDItem'${p[35]}'=");sub("^...."," ") };1 ' p '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[43]}'{$2=$2-1;print}' ' BEGIN { i="'${p[26]}'";M1='${p[16]}';M2='${p[18]}';M3='${p[31]}';M4='${p[32]}';} !/^A/{next};/%/ { getline;if($5<M1) a="user "$2"%, system "$4"%";} /disk0/&&$4>M2 { b=$3" ops/s, "$4" blocks/s";} $2==i { if(c) { d=$3+$4+$5+$6;next;};if($4>M3||$6>M4) c=int($4/1024)" in, "int($6/1024)" out";} END { if(a) print "CPU: "a;if(b) print "I/O: "b;if(c) print "Net: "c" (KiB/s)";if(d) print "Net errors: "d" packets/s";} ' ' /r\[0\] /&&$NF!~/^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./ { print $NF;exit;} ' ' !/^T/ { printf "(static)";exit;} ' '/apsd|BKAg|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/ )||(/v6:/&&$2!~/A/ ) ' ' $1~"lR"&&$2<='${p[25]}';$1~"li"&&$3!~"wpa2";' ' BEGIN { FS=":";p="uniq -c|sed -E '"'s/ +\$[0-9]+\$\$.+\$/\\\2 x\\\1/;s/x1$//'"'";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]$1|p;b=b$1;} END { close(p);if(b) print("\n\t* Code injection");} ' ' NR!=4{next} {$NF/=10240} '"`S0 27 14`" ' END { if($3~/[0-9]/)print$3;} ' ' BEGIN { L='${p[36]}';} !/^[[:space:]]*(#.*)?$/ { l++;gsub(/[-0-9A-Fa-f]{22,}/,"UUID");if($0~"/Users"&&$0!~"/Shared") gsub(/\/Users\/[^ \/]+/,"/Users/USER");if(l<=L) f=f"\n "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n [N/A]";"file -b "F|getline T;if(T!~/^(AS.+ (En.+ )?text$|(Bo|PO).+ sh.+ text ex)/) F=F" ("T")";printf("\nContents of %s\n%s\n",F,f);if(l>L) printf("\n ...and %s more line(s)\n",l-L);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' / / { print "'"${p[28]}"'";exit;};1;' '/ en/!s/\.//p' ' NR!=13{next};{sub(/[+-M]$/,"",$NF)};'"`S0 39 40`" ' $10~/\(L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9;} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?Info\.plist$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ /V/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' ' /^find: /d;p;' "`S0 44 45`" ' BEGIN{FS="= "} /Path/{print $2} ' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps sudo\ crontab sudo\ iotop top pkgutil 'PlistBuddy 2>&1 -c "Print' whoami cksum kextstat launchctl sudo\ launchctl crontab 'sudo defaults read' stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' defaults\ read scutil sudo\ dtrace sudo\ profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil sudo\ lsof test osascript\ -e );c2=(com.apple.loginwindow\ LoginHook '" /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'|tr , \\\n" 'L*/Ca*/com.ap*.Saf*/E*/* -d 1 -name In*t -exec '"${c1[14]}"' :CFBundleDisplayName" {} \;|sort|uniq' '~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $' '.??* -path .Trash -prune -o -type d -name *.app -print -prune' :${p[35]}\" :Label\" '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' "-f'%N: %l' Desktop L*/Keyc*" therm sysload boot-args status " -F '\$Time \$Message' -k Sender kernel -k Message Req 'bad |Beac|caug|corru|dead[^bl]|FAIL|fail|GPU |hfs: Ru|inval|jnl:|last value [1-9]|n Cause: -|NVDA$|pagin|proc: t|Roamed|rror|ssert|Thrott|tim(ed? ?|ing )o|WARN' -k Message Rne 'Goog|ksadm|SMC:| VALI|xpma' -o -k Sender fseventsd -k Message Req 'SL' " '-du -n DEV -n EDEV 1 10' 'acrx -o comm,ruid,%cpu' '-t1 10 1' '-f -pfc /var/db/r*/com.apple.*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cgh] ! -name *ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true $ -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '/S*/*/Ca*/*xpc* >&- ||echo No' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' '-L /S*/L*/{C*/Sec*A,E}* {/,}L*/{A*d,Ca*/*/Ex,Co{mpon,reM},Ex,In{p,ter},iTu*/*P,Keyb,Mail/B,Pr*P,Qu*T,Scripti,Sec,Servi,Spo,Widg}* -path \\*s/Resources -prune -o -type f -name Info.plist' '/usr/lib -type f -name *.dylib' `awk "${s[31]}"<<<${p[23]}` "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,pam.d/*,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t {/S*/,/,}L*/Lau*/*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -getdnsservers\ "${p[N5]}" -getinfo\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --only-files --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' '+c0 -i4TCP:0-1023' com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' "+c0 -l|awk '{print(\$1,\$3)}'|sort|uniq -c|sort -n|tail -1|awk '{print(\$2,\$3,\$1)}'" );N1=${#c2[@]};for j in {0..9};do c2[N1+j]=SP${p[j]}DataType;done;N2=${#c2[@]};for j in 0 1;do c2[N2+j]="-n ' syscall::'${p[33+j]}':return { @out[execname,uid]=sum(arg0) } tick-10sec { trunc(@out,1);exit(0);} '";done;l=(Restricted\ files Hidden\ apps 'Elapsed time (s)' POST Battery Safari\ extensions Bad\ plists 'High file counts' User Heat System\ load boot\ args FileVault Diagnostic\ reports Log 'Free space (MiB)' 'Swap (MiB)' Activity 'CPU per process' Login\ hook 'I/O per process' Mach\ ports kexts Daemons Agents XPC\ cache Startup\ items Admin\ access Root\ access Bundles dylibs Apps Font\ issues Inserted\ dylibs Firewall Proxies DNS TCP/IP Wi-Fi Profiles Root\ crontab User\ crontab 'Global login items' 'User login items' Spotlight Memory Listeners Widgets Parental\ Controls Prefetching SATA Descriptors );N3=${#l[@]};for i in 0 1 2;do l[N3+i]=${p[5+i]};done;N4=${#l[@]};for j in 0 1;do l[N4+j]="Current ${p[29+j]}stream data";done;A0() { id -G|grep -qw 80;v[1]=$?;((v[1]==0))&&sudo true;v[2]=$?;v[3]=`date +%s`;clear >&-;date '+Start time: %T %D%n';};for i in 0 1;do eval ' A'$((1+i))'() { v=` eval "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};A'$((3+i))'() { v=` while read i;do [[ "$i" ]]&&eval "${c1[$1]} ${c2[$2]}" \"$i\"|'${c1[30+i]}' "${s[$3]}";done<<<"${v[$4]}" `;[[ "$v" ]];};A'$((5+i))'() { v=` while read i;do '${c1[30+i]}' "${s[$1]}" "$i";done<<<"${v[$2]}" `;[[ "$v" ]];};';done;A7(){ v=$((`date +%s`-v[3]));};B2(){ v[$1]="$v";};for i in 0 1;do eval ' B'$i'() { v=;((v['$((i+1))']==0))||{ v=No;false;};};B'$((3+i))'() { v[$2]=`'${c1[30+i]}' "${s[$3]}"<<<"${v[$1]}"`;} ';done;B5(){ v[$1]="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d: <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F: ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`grep -Fv "${v[$1]}"<<<"$v"`;};C0(){ [[ "$v" ]]&&echo "$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "$s"<<<"$v"`&&C1 1 $1;};for i in 1 2;do for j in 0 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;{ A0;D20 0 $((N1+1)) 2;D10 0 $N1 1;B0;C2 27;B0&&! B1&&C2 28;D12 15 37 25 8;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D23 0 $((N1+4)) 5 4;D13 0 $((N1+9)) 59 50;for i in 0 1 2;do D13 0 $((N1+5+i)) 6 $((N3+i));done;D13 1 10 7 9;D13 1 11 8 10;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 14 12 14;D22 6 36 13 15;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D22 35 49 61 51;D22 11 17 17 20;for i in 0 1;do D22 28 $((N2+i)) 45 $((N4+i));done;};D22 12 44 54 45;D22 12 39 15 21;A1 13 40 18;B2 4;B3 4 0 19;A3 14 6 32 0;B4 0 5 11;A1 17 41 20;B7 5;C3 22;B4 4 6 21;A3 14 7 32 6;B4 0 7 11;B3 4 0 22;A3 14 6 32 0;B4 0 8 11;B5 7 8;B1&&{ A2 19 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;D13 4 21 24 26;B4 4 12 26;B3 4 13 27;A1 4 22 29;B7 12;B2 14;A4 14 6 52 14;B2 15;B6 14 15 4;B3 0 0 30;C3 29;A1 4 23 27;B7 13;C3 30;D13 24 24 32 31;D13 25 37 32 33;A2 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D13 21 0 32 19;D13 10 42 32 40;D22 29 35 46 39;};D23 14 1 62 42;D12 34 43 53 44;D12 22 20 32 25;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 26 28 35 34;D13 27 29 36 35;A2 27 32 39&&{ B2 19;A2 33 33 40;B2 20;B6 19 20 3;};C2 36;D23 33 34 42 37;B1&&D23 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 20 42 32 41;D13 37 2 48 43;D13 4 5 32 1;D13 4 3 60 5;D12 26 48 49 49;B3 4 22 57;A1 26 46 56;B7 22;B3 0 0 58;C3 47;D22 4 4 50 0;D23 22 9 37 7;A7;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
8. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
exec bash
and press return. Then paste the script again.
10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
[Process completed]
to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report what happened. No harm will be done.
12. When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
14. This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
Copyright © 2014 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

Recommendations for external hd for Time Machine backups

After having my 1TB G-Tech G-Drive Q desktop external h.d. crap out on me for a second or third time, this time for good, I give up on G-Tech. (I also had a faulty 500GB G-Tech portable which had to be replaced.)
For many reasons, my iMac's Time Machine backups have to be stored on an external hard drive. Two or three times, the external h.d. has become corrupted or something and has had to be reformatted, losing all the previous backups and starting all over again. This time, since the external h.d. is toast, I have no backups at all.
My MAIN question: Do any of you have a recommendation for an external hard drive - probably desktop, but not necessarily - preferably 1TB - which is RELIABLE?
Is this h.d. corruption/repeated failure a function of Time Machine? The hard drive itself?
What good is Time Machine if we lose backups all the time?

limerick2010 wrote:
Sorry to butt in, but I'm on the lookout for a solution to make a secondary, offsite back-up of my company's data. I was also looking at the usage of external hard disk for the purpose but am stumbling at a very basic question.
If the first disk(say 1TB) runs out of space and I connect a new hard-disk, wouldn't Time Machine back up all the stuff previously backed up, all over again on the new disk?
Exactly. Bt you're talking about two very different things: secondary backups vs. not enough room for primary backups.
The whole point of secondary backups is having a second, separate set, so if something happens to the primary set (lost, corrupted, disk fails, etc.), you have another complete set. As noted in the link in my previous post, it's also a good idea to use a different app for the secondary set, in case there's a problem with the primary app.
If your Time Machine disk gets full, you have three choices:
Let Time Machine start deleting old backup(s) automatically, to make room for new ones. You don't need to keep them forever -- a few months should be plenty for most users.
Get a new disk and start backing-up to it. Keep the old one "on the shelf" until you're sure you don't need the old backups any longer. You can always view and restore from them via the +*Browse ...+* option, per #17 in Time Machine - Frequently Asked Questions (or use the link in *User Tips* at the top of this forum).
Get a larger disk, copy the old backups to it, and continue backing-up to the new one. See #18 in the FAQ.

Time machine backup preparing is stuck!

Time machine backup preparing is extremely slow if working at all? Could it have something to do with me having just replaced my hdd with an ssd? I restored my time machine backup to the ssd with no problems (didn't seem to be that slow). I also have some files which I manually move to the external hard drive instead of using time machine and they were very quickly transferred. I did an smc reset. I did a full indexing of spotlight. Nothing seems to work. Please help!

Hi there corneliusgdahling,
are you using an Apple Time Capsule or just an external drive for backup? Have you tried removing deactivating Time Machine on System Preferences and re-enabling it?
Sorry for bad English

Time Machine backups have become very slow

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