External hard disk not recognized by time machine

I have an external backup disk, Passport, that is no longer recognized by time machine or my computer. I used it a couple of weeks ago to restore my wife's MacBook. Hers is an older model and uses Lion. Since then my MacBook Pro--mavericks will not mount the external hard disk.
OKAY==after leaving the Passport on for a couple of hours it now is mounted. Don't know what happened, but it is now working.
CANCEL problems

I see it's now working but make sure you are running the latest version of WD software.
http://community.wd.com/t5/News-Announcements/New-Release-WD-SmartWare-Version-1 -3-6-for-Mac-10-5-10-9-11-25/td-p/628441

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External hard drive not recognized after time machine locked up

I was backing up to an external hard drive (300GB Western Digital) and time machine locked up. I had to shut down the computer and restart. Now the external hard drive does not show up on the desktop?
I can see it in disk utility but I am not able to mount or unmount the disk, I keep getting an error that the disk is in use. I tried to erase/reformat the disk and no luck.
Any suggestions?
Thanks for the help

KTM450rider wrote:
Do I need to boot from the install DVD?
this is often the easiest and eliminates any "busy drive" problems. what's wrong with booting from the install DVD? takes a couple of minutes.
My main hard drive is OK... the drive that I am having problems with is an external hard drive that I was using to back up my lap top. I just want to get the external drive reformatted, but disk utility will not erase it. I get an error that disk utility shut down, "please check the drive and make sure that the drive is not in use or programs are still running"
Is their a way to do a hard or forced reformatting of an external hard drive, I don't care about the information on the drive
I also tried disk warrior to recover the info on the disk and all it does is crash my mac pro????
Thanks again for the help

Hard drive not recognized (OMG) & Time Machine

While using my MacBook 10.5.8 I got beachball and could not quit apps or restart. I shut down using pwr button and now computer will not recognize hard drive when checking with Disk Utility, or when trying to reinstall from DVD.
Any suggestions?? Is my HD shot?? Is there any use taking it to Apple Store??
If I connect my external Time Machine to another computer, PowerBook G4) (also running 10.5.8) will it load/restore old computer data??

A Powerbook G4 will likely not understand what to do with half the data on it, because the MacBook is a different setup. Do you have the original 10.5 installer disc that was used for the MacBook? If you do, boot off of it, and see if it can see your Time Machine backup through its Utilities menu for restoring via Time Machine. Connect the drive when it requests you do so. If it can, but it can't see the internal drive, then you probably need to first see if the internal drive's directory is damaged. For that you need to run the Disk Utility in the Utilities menu of the installer program for 10.5's Repair Disk. If it can't repair disk, go out and purchase Alsoft Disk Warrior. If it can't repair the disk, then yes the internal hard drive is shot. If one or the other can repair the disk, shut down the computer and eject the 10.5 disk holding the mouse button. It should reboot normally.

External hard drive not working with Time Machine

I have an Iomega network hard drive attached via ethernet cable to my Airport Extreme router.
I plugged the hard drive in. Everything works like it should. I can see the drive in Finder and I can read and write to the drive. I do share the network drive in a mixed WIN and OS X environment. I never had to reformat the drive and I can read/write to the drive with no problems from all of my computers.
I turned on Time Machine on my iMac and walked through the simple setup screens there. I never set anything up on the hard drive through the drive interface software. And Time Machine worked fine for about 4 months. Then all of a sudden, Time Machine just stopped backing up and I got all kinds of error messages saying that the TIme Machine backup failed.
So I went into Time Machine, turned it off, turned it back on. No luck. Same error messages.
So I started fresh. I deleted the prior Time Machine backups and I am back at the TIme Machine set up screen. OS X can see the TIme Machine share on my external hard drive and I tell the setup wizard that's the drive I want to use.
Then I get a window that says it's trying to connect to the external hard drive which I call "Cloud_Drive". After about 30 seconds, I get an error window that says
"There was a problem connecting to the server "Cloud_Drive-TimeMachine"
The server may not exist or it is unavailable at this time. Check the server name or IP address, check your network connection, and then try again.
At this point the external drive is still visible in FInder and I can read/write to it from my iMac. I just cannot understand why Time Machine was working and then all of a sudden it stopped.
I did go into the software management of the drive and found an area in which to turn Time Machine on on the drive's side. Which I never did before so I turned it on and then I'm prompted to enter the name of the computer and the ethernet ID. I entered the name of the iMac and I have tried using the WiFI MAC address - no luck getting TIme Machine to work and I've also entered Terminal, found a MAC address under the line titled "ether" and still the same result.
I have also changed the destination of the Time Machine files on the external hard drive and the Time Machine wizard does write a sparcebundle file to that new location but still get the same error message above.

Is it a firewire ext. HD?
Yes, many are reporting same, there is a firewire fault and TB HD on external HD from LaCie (Seagate) and from WD especially.
Technicians are looking into it.
Until there is resolution, consider setting up a USB ext. Time machine HD.
Until then consider confining Mavericks use with USB HD.
Ive tested a long line of USB HD on Mavericks, all seem fine.

What brand external hard drive is best with time machine

what brand of external hard drive works best with time machine?

Contrary to the other two replies, I will relate what I've read here: WD drives are fine, but their (cheap?) enclosures are subject to failure. Some buy a bare WD drive and install it in an Oxford Chip external enclosure (OWC / macsales.com would be one source). And, I have two LaCie Quadras and one OWC Mercury Pro - both are generally recommended here. If you want it bootable, most WD drives do not support it:
http://wdc.custhelp.com/app/answers/detail/a_id/1787/related/1/session/L2F2LzEvd GltZS8xMzUxNTIzMzIwL3NpZC9ueUFYc1g5bA%3D%3D
Please note: it's good to have an external hard drive which has its own power supply and, as mentioned, FW 800 or USB 3). You also do not need any software that comes on the external - you will most likely need to format it anyway because most come formatted for Windows, but that is easy using Disk Utility.

I bought a new external hard drive for backups, but time machine won't do a full back up. I think it is remembering backing up onto previous external hard drives, which I don't own anymore. How do I do a new full backup?

I bought a new external hard drive for backups, but time machine won't do a full back up.
I think it is remembering backing up onto previous external hard drives, which I don't own anymore. How do I do a new full backup?
When I bought the new (used) iMac, I also bought an external hard drive for backups. It worked fine, but my husband stole it.
Then I bought a new external hard drive (Seagate) and it worked fine for three weeks, then died.
So I just got a new external hard drive, which was put together from an internal hard drive and a hard drive enclosure.
Time machine did the first backup today, and it should have taken 9 hours like it did on the previous first time full back up. Instead, it took 30 minutes. That can't be right. I want to start over and do a full backup to make sure everything gets onto my new external hard drive, but I can't figure out how to do that. Please help.

Triple-click anywhere in the line below to select it:
tmutil compare -E
Copy the selected text to the Clipboard (command-C).
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 will take at least a few minutes to run. Eventually some lines of output will appear below what you entered.
Each line that begins with a plus sign (“+”) represents a file that has been added to the source volume since the last snapshot was taken. These files have not been backed up yet.
Each line that begins with an exclamation point (“!”) represents a file that has changed on the source volume. These files have been backed up, but not in their present state.
Each line that begins with a minus sign (“-“) represents a file that has been removed from the source volume.
At the end of the output, you’ll get some lines like the following:
Added:
Removed:
Changed:
These lines show the total amount of data added, removed, or changed on the source(s) since the last snapshot.

Nas on airport extreme not recognized by time machine. same nas was previously used as time machine backup on different airport extreme. are there any configuration files that i can delete to fix this problem ?

nas on airport extreme not recognized by time machine. same nas was previously used as time machine backup on different airport extreme. are there any configuration files that i can delete to fix this problem ?

Time Machine has been working just fine, but in the last week or two it has given up the ghost. I reset the connections to the drive, and it will basically save a few bytes of data and then hang.
Although Apple originally announced, prior to the release of the first 802.11n AirPort Extreme Base Stations (AEBSn), that it would support Time Machine backups to AirPort Disks, they removed that option before they did finally release the base station for sale.
Since then, Apple has posted (as you have noted) that they DO NOT support Time Machine backups to AirPort Disks. As far as I know, they have not changed from that position and those who do these backups find that they become corrupted over time. Sorry, but it sounds like you just confirmed that for yourself.
1) Has one of the recent updates either on the AE (firmware) or OSX disabled this function?
No. Again, this feature has never been supported by Apple for every generation of AEBSn released.
2) Are there any changes I can make to get this working again?
If your data backups are critical to you, then you will want to use a different solution for your Time Machine backup destination drive strategy. I would suggest that you connect your WD My Book directly to your Mac in the mean time.
Your other options would be to either use a Time Capsule (which interestingly does support TM backups to AirPort Disks) or a non-Apple solution like the Drobo FS or HP MediaSmart server.

Can I view photos and movies from my external hard drive? I used Time Machine and a WD Passport for backup. Since my drive on my MacBook Pro is filling up I was planning to delete some of the movies and photos.

Can I view photos and movies from my external hard drive? I used Time Machine and a WD Passport for backup. Since my drive on my MacBook Pro is filling up I was planning to delete some of the movies and photos. I wanted to see if I could view them from the hard drive. Thanks

Hello, eco1.
Thank you for visiting Apple Support Communities.
This sounds like you are wanting to move your iTunes media folder to an external drive and have iTunes this folder from this location. If this is the case then I would recommend taking a look at the article below.
iTunes for Mac: Moving your iTunes Media folder
http://support.apple.com/kb/ht1449
Cheers,
Jason H.

My external hard disk not working properly in my macbook pro . anyone help me . its seagate hard disk

My external hard disk not working properly in my macbook pro . anyone help me . its seagate hard disk

You need to get some software that allows your Mac to read and write to the NTFS disk. There's a whole bunch of stuff out there, but this program has a good review, and you can try it for free. I would move everything off of your external drive, reformat it into Mac OSX extended, and use it for your Mac. You don't need NTFS anymore, unless you still have a Windows computer that needs it.

How do I find my photos on my external hard drive backed up using Time Machine?

How do I find my photos on my external hard drive backed up using Time Machine?
My hard drive died so this is my only storage. The hard drive was from an early 2008 Macbook Pro.
I had recently installed Snow Leopard.

If they’re in an iPhoto library, look in the Pictures folder of your home folder first. Otherwise, they’ll be in the location corresponding to the one you saved them to.
(111765)

My external hard drive is not recognized by Time Machine; "The backup disk is not available" according to Disk Utility

I'm not completely tech savvy, but I'm having troubles with my external memory & time machine. I'm a student, and thus its very important to me to be able to back up my computer.
I wanted to back up my Time Machine the other day. I clicked the icon at the top of the page (beside the battery icon, etc.) and the message "The backup disk is not available". I have a 500GB Seagate passport (ie: http://www.bestbuy.com/site/Seagate---FreeAgent-GoFlex-500GB-External-USB-2.0-Po rtable-Hard-Drive---Silver/9929098.p?id=1218196478444&skuId=9929098)
My macbook pro is version 10.7.5 Mac OS X Lion. My external memory is only about a year old. It hasn't been dropped or anything; it permanently sits secured to my desk.
What appears when I click "Repair Disk":
Verify and Repair volume “Time Machine Backups”
Checking file systemChecking Journaled HFS Plus volume.
Detected a case-sensitive volume.
Checking extents overflow file.
Checking catalog file.
Incorrect block count for file shutdown_time
(It should be 1 instead of 0)
Invalid node structure
Rebuilding catalog B-tree.
The volume Time Machine Backups could not be repaired.
Volume repair complete.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
After clicking "Repair Disk" this message pops up: "Disk Utility Stopped Repairing 'Time Machine Backups' Disk utility can't repair this disk. Back up as many as your files as possible, reformat the disk, and restore your backed-up files."
I don't want to wipe my memory on my external disk just in case the disk doesn't restore (as I do not have another disk to back up my computer on to).
What is going on? Why is this happening out of the blue? How can I fix this?

Sounds like it either has, or is about to die.
If you don't need anything off the old drive, then yes, replace it immediately with something a little more reolaable. I use WD Caviar Black personally. But anything that has a known low failure rate.

External hard drive not recognized by OS

External FW HD not recognized by Disk Utility and "not available" to Time Machine. Had worked fine until last attempt to B.U. Core Duo, OS10.8.4. Suggestions to make this drive available again?

If the drive has more than one interface (USB, FireWire, Thunderbolt, eSATA), try one of the other interfaces.
Check that the data cable is securely inserted at both ends.
Try a different cable.
If you're connecting the drive through a hub, connect it directly to a built-in port on the Mac.
If you're connecting it directly, try a different port.
Disconnect all other devices on the bus, or as many as possible.
Test the drive with another Mac. Test another drive with this Mac.
If the drive is bus-powered, but has an AC adapter, connect the adapter.
Boot into Recovery and launch Disk Utility. Is the drive recognized?
Start up in Safe Mode and test.
Reset the NVRAM.
Reset the System Management Controller.
If the drive doesn't work under any of the above conditions, and if another drive does work with the same Mac, then the drive has failed. You may be able to salvage the mechanism by removing it from the enclosure and installing it in another one, or in a drive dock.

External hard disk not detecting

Hi, I am using WD 1 TB external hard disk and it was going all good till now one day my friend asked for my hard disk as he need to back up some data and connected it to PC. Now I am trying to connect it to mac but mac is not detecting.
My hard disk has all my softwares and other important data.
Need help ASAP

repair disk just checks for errors
likely its a PC formatted HD, thats why you cant read it
Formatting ERASES a HD, so dont do that to the other persons HD.
check what the format of it is. If its NTFS youd need an APP like Paragon to read / write to it.

External Hard disk not being detected.

External Hard disk is corrupt. It was plugged into an Xbox and fidgetted around. I think the kid playing with it clicked on format but before it could do anything i unplugged it. But in the process this drive is not getting detected any more and all the data on the drive is non accessable. Is there anything that can be done to recover the data?

but no partition
Yes, you interrupted a formatting.
Since the "other person" commanded a format (why?), which is very quick operation, youve got a nasty mess as per the HD.
This is why having a minimum secondary redundancy of all data on an external HD is necessity.
Remaining option is pricey data recovery specialists.

External hard-disk not working with firewire under Snow Leopard

Hi. I have a LaCie d2 external hard-disk that has Firewire 800, 400 and usb2. I previously used it on my old (angle-poise) iMac connecting using the Firewire 400 socket. I've just a got a new mac with Snow Leopard and I thought it would we best to connect to the LaCie with Firewire 800. However when I do this, the disc mounts ok, but browsing in the Finder is really slow and copying files from the disk to the imac seems to work at a really slow rate (less than USB1 speed) if at all ! However, I switched to using the USB2 connection instead and it works like a dream. What gives ? Is Firewire in Snow Leopard buggy ??

There's no problem with the drive.
Maybe true, and the drive would probably work fine with Leopard. One thing that's obvious is that Apple did make changes in the way that FireWire works in Snow Leopard. Many drives and drive manufacturers work well with SL, but there have also been reports of firmware issues by Western Digital and other companies.
Have you checked with your vendor to see if they are offering a firmware update for your drive?
BTW, I got a new FW case a few months ago while at a Fry's electronic store. The brand new USB2 and FW400 cables worked fine. The FW800 cable did not, but another cable came to the rescue. Just saying...

External hard disk not recognized by time machine

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