Problems with seagate external hdd

I have a Seagate 3TB external HDD attached to my iMac via a Firewire 800 cable. I have the latest software running (Yosemite 10.10.3) but the Mac no longer shows the HDD in finder, I can see it in disk utility but when i come to verify or repair the disk i get this message
" Error: Partition map check failed because no slices were found" I also get this message:
Verifying volume “Seagate External Drive”Verifying file system.Checking Journaled HFS Plus volume.Invalid B-tree node sizeThe volume Seagate External Drive could not be verified completely.File system check exit code is 8.Error: This disk needs to be repaired. Click Repair Disk.
The drive is nearly full and I really don't want to lose any files, can anyone help please..

Hi Brian
Connect the External HD directly up to one of the iMac's and follow the Formatting and Partitioning instructions in Ken's article: (but note that doing so will erase the data on the drive)
Ken Stone's article: http://www.kenstone.net/fcphomepage/partitioningtiger.html
It's sounding more like your trouble is with network sharing than format, if so have a look
at: http://support.apple.com/kb/HT1549
and: http://db.tidbits.com/article/9261
Dennis

Similar Messages

Format/cross-compatibility problems with Seagate External HDD

I recently bought a MacBook Pro (July 08) and as soon as I took it out of the box and set it up, went to plug in my little 120GB Seagate HDD to dump the files onto my new Mac, and received the query "Do you wish to format HDD?" Of course I clicked 'NO', and ejected the drive from the Mac. I went to plug it back into my old PC (where it had worked moments before) and received the same query as on the Mac, plus, when I went into properties, found that the drive was no longer FAT32 but RAW. I now find myself at wit's end trying to rescue the 4 years' of data on the drive. I have tried running disk utility on Mac where it can see it still as FAT32, but can't mount it or repair it, and it's still in RAW format when connected to PCs. Anybody out there with some ideas?
Thanks!

I'm not a hardware expert, but Seagate had a major HD firmware issue earlier this year:
http://www.macintouch.com/readerreports/harddrives/topic3441.html#d17jan2009

A few months ago I bought an imac 27 inch late 2013 ... ever since I have continuously problems with my external HDD that disconnect all the time and cause problems in other software (Lightroom, Adobe PS CS6) ...

a few months ago I bought an imac 27 inch late 2013 .. §16GB - and flash memory) - 3,3 Ghz Intel Core 15
ever since I have continuously problems with my external HDD that disconnect all the time and cause problems in other software (Lightroom, Adobe PS CS6) ... it is not a HDD problem, because it occurs with my 3TB WD HDD (Time Machine), my 1TB WD and 1TB IOMEGA
any one have a solution? anyone dealt with this problem in the apple care program?

You are still under warranty and/or have AppleCare. Call them. Let them deal w/it.

Problem with USB/External-HDD/etc... not writing?

Hello...
Recently I've been having a problem with my USB, and external harddrive. It seems that for some reason when I copy files to the device, they do not write. If I go and view the device contents on another PC, my files aren't there, but on this PC they are.
The only way that they will copy is if I right click and select "Safely Remove Drive."
I never used to have to do this; Is there a way to make files auto write?
Thanks in advance,
Stephen

Hi, you need to use -sync mount option.

Problems with 1TB external HDD

I have two external HDD, one a LaCie 2TB and one a Maxtor Basics 1.5TB. Both devices come formatted as FAT32. I have tried reformatting using Disk Utility to Mac OS Extended but the process fails on both devices, whichever of my iMac I use. The only thing I can then do is re-partition them as FAT32 again.
Equally frustrating, the devices are not visible when I try to access them from other machines on the network whereas other drives connected to the same machine are fully visible.
Is there a size limit for formatting using Mac OS Extended or something?
Any suggestions of how I might at least get them visible for sharing across the network - even if they have to stay as FAT32 drives?

Hi Brian
Connect the External HD directly up to one of the iMac's and follow the Formatting and Partitioning instructions in Ken's article: (but note that doing so will erase the data on the drive)
Ken Stone's article: http://www.kenstone.net/fcphomepage/partitioningtiger.html
It's sounding more like your trouble is with network sharing than format, if so have a look
at: http://support.apple.com/kb/HT1549
and: http://db.tidbits.com/article/9261
Dennis

Problems with my External HDD. Loosing space?

I am new to Mac.
I just bought a new iMac, and a 2 TB WD My Passport external HDD where I am backing up all my files collected from previous works done under Windows.
In the 2 TB HDD I have created 3 folders: one has 546 GB, another has 200 GB, and the third 0,2 GB (200 MB).
So the total should be something like 800 GB, and therefore the available space in the HDD should be in the range of 1,2 TB.
But when I look in Properties, it tells me that the Used space is 1,3 TB, and that the Available Space is 0,7 TB.
How can this be?
I have looked into another articles and all of them say that I should not have to Defrag (I had that doubt because I copied info into the HDD and then I deleted it, and so it could be marked as used).
So, if that is not the case, what can be happening?
What should I do to recover the rest of the space?
Thanks

You are still under warranty and/or have AppleCare. Call them. Let them deal w/it.

My laptop fails to read a seagate external HDD

Hello!
I recently tried to use a Seagate external HDD with my laptop and although the installation was successful, a message appears saying: "Location is not available. H:/ is not accessible. Access is denied."
The HDD is installed properly (the driver is shown in Drivers List) and its status on Disk Management appears to be online.
I tried the HDD in an other Computer and in a TV and it works perfectly.
I had the same problem with another Seagate external HDD a few days ago, but back then I thought I was circumstantial.
Is there anything I can do?
Thanks in advance!

Unfortunately, Mavericks is having plenty of issues with Time Machine.
If your Mac is backing up OK to the Time Capsule, try resetting Time Machine Preferences / Options by adding the external hard drive back onto to the list of Excluded items, then saving the changes, and then closing the preferences window.
Wait a minute and then open up Time Machine Preferences / Options once more and them remove the drive again from the list of Excluded items.....which tells Time Machine to back it up, and then Save the changes.
We're trying to avoid having to delete the Time Machine Preferences file here, since doing that will force you to set up Time Machine all over again......but it may be necessary.

FRUSTRATED! Cannot access Seagate external HDD - message is "the disk you inserted was not readable by this computer"

I get the message "the disk you inserted was not readable by this computer" when trying to access my Seagate external HDD.
Disk Utility lists both the Seagate drive and volume but all options (verify disk, repair disk) are greyed out.
It says the volume is unmounted and Windows_FAT_32.
(The external HDD used to be formatted for NTFS, but when I moved across to Apple last year, I reformatted to FAT32).
I haven't accessed the drive for a few months but the last time I did, it worked fine.
I'm running OS X 10.9.5 on MBA bought last year.
I've spent 2 hours trawling through blogs/mac forums/apple support and nearly bought Disk Warrior out of frustration, but surely there must be a simpler solution?
I don't think I'm dealing with a corrupt drive, just an inaccessible one!
Any help greatly appreciated, even if it is to pay the $$$ for DW...!
Thanks, Jay

See mount section in 1st link.
Disk Unmount Using Terminal
Disk Utility – Force Mount Disk

I just updated my latest java but the update is causing problems with some externale devices. So i would like to uninstall this latest java update and get back the previous one. That should solve to problems with my external device

i just updated my latest java but the update is causing problems with some external devices. So i would like to uninstall this latest java update and get back the previous one. That should solve to problems with my external device.
Is this possible and how do i do that?
Anyone who responds thanks for that!
Juko
I am running
Hardware Overview:
Model Name:          Mac Pro
Model Identifier:          MacPro1,1
Processor Name:          Dual-Core Intel Xeon
Processor Speed:          2,66 GHz
Number of Processors:          2
Total Number of Cores:          4
L2 Cache (per Processor):          4 MB
Memory:          6 GB
Bus Speed:          1,33 GHz
Boot ROM Version:          MP11.005D.B00
SMC Version (system):          1.7f10
Serial Number (system):          CK7XXXXXXGP
Hardware UUID:          00000000-0000-1000-8000-0017F20F82F0
System Software Overview:
System Version:          Mac OS X 10.7.5 (11G63)
Kernel Version:          Darwin 11.4.2
Boot Volume:          Macintosh HD(2)
Boot Mode:          Normal
Computer Name:          Mac Pro van Juko de Vries
User Name:          Juko de Vries (jukodevries)
Secure Virtual Memory:          Enabled
64-bit Kernel and Extensions:          No
Time since boot:          11 days 20:39
Message was edited by Host

Java 6 you can't as Apple maintains it, and Java 7 you could if you uninstall it and Oracle provides the earlier version which they likely won't his last update fixed 37 remote exploits.
Java broken some software here and there, all you'll have to do is wait for a update from the other parties.

Problem with 2 External Drives on my new iMac

I am having a problem when I daisy-chain a second external HD to my first external HD connected to my new iMac. This is the second external HD I've tried this with, with similar problems arising.
My setup: OS 10.5.6. First external HD: G-Tech Q 1TB; 2nd External HD: also a G-Tech Q 1TB (the first time I was daisy-chaining a LaCie 250GB drive to my first external drive).
Problem: when my second external HD is daisy-chained to the first external HD my system starts to go wonky. I can't force quit apps for one. My system hangs. On reboot I don't get past the blue screen. If I remove the daisy-chain all is fine.
I initially had this problem with another external HD I tried to daisy-chain to the first. Same issue.
I was trying to partition the second external using Disk Utility. When I hit the Partition button, Disk Utility just hung with the beach ball.
When I attached a second external the first time I tried to do this all sorts of havoc ensued. A lot of apps were hanging and I couldn't Force Quit them. The whole system seemed to go wonky.
Can anyone tell me what might be happening here?

I've been doing a bit of research on these boards about daisy-chaining problems and am reading that sometimes daisy-chaining can overwhelm the Firewire bus and even corrupt data. This is what I had experienced the first time I tried to daisy-chain. Someone recommended a powered Firewire repeater (like this: http://tinyurl.com/kl84n5) would be a better solution.
Given I've got only 1 Firewire port on my iMac, what do you think?

I am trying to get an answer to whether or not I can successfully use Time Machine with an external HDD connected to an airport extreme? Some forums say yes, some say no.

I am trying to get an answer to whether or not I can successfuly use Time Machine with an external HDD connected to an airport extreme. Some forums say yes, some say no. I'm also curious about formatting the hard drive to work both on my wife's MacBook Pro and my PC. Any help would definitely be appreciated.

You may be going on a recollection, that I share, that at one time Apple stated this would be possible:
In fact, Apple’s Time Machine Web page touted this very capability as recently as last Tuesday, as you can see from Google’s October 16 cache of the page
Effortless meets wireless. With a hard disk connected to your AirPort Extreme Base Station, all the Macs in your house can use Time Machine to back up wirelessly. Simply select your AirPort Disk as the backup disk for each computer and the whole family can enjoy the benefits of Time Machine.
But if you look at the current Time Machine page on Apple’s Web site, that text is nowhere to be found.
That was a long time ago, it has never been officially implemented, and at present they specifically say it cannot be done.
In summary, it may work, but probably won't, and even if it does it may not be reliable.
Reference:
Disks that can be used with Time Machine
Time Machine can’t back up to an external disk connected to an AirPort Extreme, or...
and
Mac OS X v10.5: Time Machine doesn't back up to AirPort Extreme AirPort Disks

I have a problem with the external sound of my ipod, when I take the headphones the music keeps playing and the ipod recognizes still have a headset connected. how do I get external sound out?

I have a problem with the external sound of my iPod, when I take the headphones the music keeps playing and the ipod recognizes still have a headset connected. how do I get external sound out?

- Try insering and removing the headphone plug a dozen times or so.
- Try cleaning out the headphone jack in the iPod.
- Resett he iPod. Nothing is lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Restore from backup
- Restoe to factory defaults/new iPod
If yu still have the problem that indicates a hardware problem, likely a bad headphone jack. Yu can make an appointment at the Genius Bar of an Apple store to confirm.
If not underwarranty Apple will only exchange your iPod for a refurbished one for:
Apple - Support - iPod - Repair pricing
A third-party place like the following is less expensive. Here is one. Google for more.
iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens

Urgent question very Strange problem with an external HD on mac PRO

Hi,
I have a problem with a external HD on my mac pro.
After many month of regular use with out any problem today when I turned on the HD I could not see it in the finder anymore.
I use this HD for backup of an other external HD and to do the back up I use an application called SYN SYNC
The strange things are:
1) If I start Sync Sync everything works properly as if the sofware recognize with out problem that the HD is effectively there.
2) If I open DISK UTILITY I can see the HD and if I try to repair it the utility after 2 minutes says that everything is ok.
3) If I look for the mac pro (to which the external HD incriminated is connected) on a different mac in my studio over the net I can see the external HD and I can browse the folder, copy items from the esternal HD to the MAC and even copy thing on the external HD.
I tried to connect directly via Fire wire 800 the HD on a different MAC and I could not see it like on the mac pro.
Does enyone have an idea of what's going on?
best regards
Lorenzo

I can still see all the others external Hd with out any problem and I already try this but no results I can't see that HD on the desktop and neither in the sidebar.
As I said the strange thing is that the external HD shows the same behaviour when is connected to a different MAC.
Seams the problem is with the HD not with the MAC.
I even try to use a different case for the HD using also USB connection instead of FW, but nothing change!

Windows will not load on a Satellite A350 with 500GB Seagate external HDD

There is an issue with this A350-043 Laptop running Windows Vista Home Premium 64Bits, part number : PSAL6C-04S015
Simply put: when connected to a SEAGATE 9NK2AL-510 500GB SATA DRIVE EXTERNAL USB (s/n: 5QG1YH1E) Windows will not load, it goes upto and freeze just prior to the green moving bars. If the USB cord is pulled out and put back in for a second, Windows continues to load normally and all is well.
Otherwise, the OS will take up to 15 minutes to load. Looking in the BIOS features, there is no option to boot from USB available, so it cannot be disabled. I have upgraded the BIOS of the Toshiba to the latest version with no change in that issue.
I have tested and confirmed that the issue persist no matter which USB port is used.
The external drive is fully fonctional and there is no errors or issues with it when Windows is loaded. I am reported this issue to Seagate as well as Toshiba in the hopes that a solution can be offered on that, but did not hear back on anything as yet.

You mean the notebook needs 15min to load the Windows OS even if the external HDD is not connected?
This sounds weird and I doubt this can be related to any software issue
First of all you should check the booting order in the BIOS the USB should be set at last or second last position.
Secondly you should check if the same issue would still persist after an new OS installation in some cases the booting procedure could be affected due to installed software and background processes.
But if the new OS installation does not help and if the issue will still persists then I assume that an hardware problem (motherboard????) could be the reason for that and therefore an notebook technician should be contacted!!!
Thats my opinion

Seagate External HDD is lost due to repairing with Disk Utility, Why?

Hi to all,
I have been struggling with my external harddisks for a few days now. And there is something that I really wish to find out why. I will really appreciate any ideas or help, thanks in advance.
I have two Seagate Freeagent external harddisks. With both, I have had problem while trashing the items that I deleted. They didn't go away. So I first verify the disks with disk utility and then repair them. One of them was safe and sound after repairing. The trash was empty. But the other one was totally gone! Empty! Like formatted! Right now I am using Seagate File Recovery software to get my data back. (And by the way, mostly works like a charm. But I have nearly 2 days to wait for the scan.)
- Is repair disk not supposed to JUST repair disk and not format the whole drive? Or am I lacking information?
- What is the problem here?
A small note: Both harddisks are working on Mac and Windows environment. They are not formatted and used as Mac Journaled or so.
I hope that I can get reply to this topic. Thank you very much.

Hello! The drive's directory structure (the raod map to every bit of info on the drive) is severely damaged. If the disk utility won't repair the damage then your next best shot is to purchase DISKWARRIOR or possible TechToolPro. Diskwarrior is the best utility for directory repair. There are cases where Diskwarrior can't repair the drive. A file recovery only app is DATARESCUE II. This is the time where you need multiple backups. I would encourage you to maintain more than one backup to increase your chances of successful recovery of your data. Personally I always try to maintain 3-5 backups. Tom

Problems with seagate external hdd

Similar Messages

Maybe you are looking for