Disk utility says SMART error but Tech Tools Pro says SMART passed
Disk Utility on my Mac Pro (6GB ram, dual dual, 10.5.5) is saying my primary HD (a Seagate 1TB, one of three) has failed SMART. Tech Tools pro says it's fine and passes SMART (and all the other tests). I've got backups (Time Machine and tar files) and a new disk on the way. However I'd like to be able to know what exactly Disk Utility thinks the SAMRT error is - is there any way of finding our or is it opaque to the user?
If the drive is possible defective, then you may be able to have it replaced at no cost because it's in warranty. Most drives carry at least a 3 year manufacturer's warranty. You would contact the manufacturer about a warranty replacement if your Apple warranty has expired. If you still have Apple's warranty in effect then contact AppleCare about the replacement.
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I have a MacBook that needs its internal hard drive's Macintosh HD partition repaired, as the boot screen freezes on startup. I am running a separate, working mac OS from an external hard drive in order to run disk utility and repair the MacBook's internal OS. The issue is, it has dismounted the internal Macintosh HD partition, and won't remount. And in addition to that, the Verify Disk option returns with, "The volume Macintosh HD appears to be OK." I've run Verify Disk and Repair Disk a few times, all with that same result. And the internal OS still won't boot.
I have attempted to make a disk image of the internal Macintosh HD partition and save it to my external hard drive so I can wipe the internal hard drive clean and restore the image, but I receive errors when trying to create the disk image, and when trying to erase the hard drive (I know, I should try to erase the hard drive when I haven't made an image. When I tried to erase the hard drive, the image wasn't done and I thought it was. I got an error for erase, and I got an error for making the disk image) I have tried making a disk image multiple times and haven't been able to create one.
There is also a boot camp partition on the internal hard drive which is of no importance as to whether it stays or is erased.Reinstall OS X without erasing the drive
Do the following:
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/. -
Disk Utility says everything's fine, but Install disk doesn't find my internal drive as a possible destination. When I startup with Command + S, I get a looping "cannot mount errno = 19" message.
Problem started when I used Tech Tool Pro 6 to "de-fragment volume". Had to cancel that process before it finished because I ran out of time. Thereafter, when I startup my machine normally, I get the gray Apple logo at first, but it changes to a prohibited symbol (circle with a slash thru it) and hangs.
When I startup holding the Option key, I can see my internal drive, but I get the same results as above.
When I startup using the MacBook OSX Install DVD, it does not find my internal drive as possible destination.
When I startup using the MacBook OSX Install DVD and then run Disk Utility, it finds my drive, allows me to "repair" and says everything is fine.
When I startup with Command + S, I get a looping error message "errno = 19" and cannot stop it to do anything else.
When I startup from Disk Warrior v4.4, it does not find my internal drive to do any repairs.
When I startup from Tech Tool Pro 6 and run the "computer check" diagnostics, everything passes but the Volume Structure, which fails at "Volume Extents (B-tree)." When I use TTP's "Tools" option to run "volume repair" it will show my internal drive and allow me to click the GO button, but nothing happens and nothing changes.
I have a Time Machine backup on an external USB drive, but for as long as the internal drive doesn't mount, I can't use the backup to restore.It's a false report and should be ignored.
I would not rely on TT as I've already said earlier even before Grant posted similar advice.
I really think the Rigid Disk Block may be corrupted. This holds the partition map and could prevent a volume from being unmounted. Unfortunately, there is no way to fix that without repartitioning the drive which will remove everything. So, before going down this road I hope you have backups or can make a backup.
Drive Partition and Format
1. Boot from your Snow Leopard Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Quit DU and return to the installer. Proceed with reinstalling OS X.
5. Download and install Mac OS X 10.6.8 Update Combo v1.1. -
Disk utility says repair needed but repair grayed out
I ran a disk utility verification, which indicated that repair was necessary. However the repair option was grayed out. How do I effect a repair?
Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X. -
When I plug in my external LaCie drive I get an error message "the disc you inserted was not readable by this computer."
The only options offered are "ignore" or "eject"
Disk Utility sees the disc but does not give a repair option.
What can I do?The good thing about mac-centric resellers such as OWC, is they have people on staff that can answer questions without you buying things first. They also have how-to information, and instructions are included in many of their products. I saw a link to watch a DIY video in one of their pages; an example of a RAID (with its own power supply) is shown on their drives page. Also a few in there, with no power supplies, for less money.
If I were looking to backup and perhaps also have a partition for a system clone, I'd consider something like one of these: http://eshop.macsales.com/shop/firewire/1394/USB/EliteAL/eSATA_FW800_FW400_USB
Some ideas on the RAID backup methods appear in google search, some of the pages are ideas and concepts; and the better ones also warn about using RAID for the only backup plan.
Oh, OWC has live chat. Haven't tried it, nor have I bought anything from them. I have what appears to be two products from them, but have not used either. One is in a box as-new, but has only USB2.0 ports & my Macs needed FW400/800. It has been said their RAM is a good way to upgrade, too. But I can't confirm!
A 'RAID-ready' unit for backup may be more versatile for just that, but I have not checked into these details. I use single HDDs in powered enclosures, and usually manually make backup clones to FW drives, of bootable OS X systems. Some of the OWC raid-ready use eSATA ports so that may not be viable for a computer without them.
The unused in-box external drive I have is like the base model in the link above. However mine is USB2.0 (maybe) and won't boot my older Macs due to hardware variance; and my preference would be for FireWire options, these models do offer that. But the one I have does not. Dual 500GB HDDs, and they could be used in tandem as a RAID. That would be a choice set up in software. I'm not sure and not interested enough to read up just now.
My backup method is not automatic, or a moving backup plan, if I don't get a move-on and make full system clones. I do make copies of photos and documents the manual way, to USB external drives; and occasionally backup to DVD or CD media. And USB flash, that helps to move files between computers without need to use file sharing via wi-fi. {Like Why fly? Walking is better exercise unless one is a bird. Squawk!}
https://www.google.com/#q=raid+backup+mac
Depending on the ports in your Mac, you may be able to use other cables to attach between a backup or externally enclosed hard disk drive with multiple partition and bootable clone in one of them. Not sure about the Thunderbolt, and where that is the main port, adapters are required to access other devices, as allowed.
Anyway, I am going on and on, yet not really saying anything.
My ideas would not be all that interesting to follow as a backup
plan when matching available newer hardware to task, but you
can get some into better ideas if you are not in a rush. Get a
good setup and then look into more an betterer stuff.
Good luck & happy computing! -
Hi, how do I manage storage? Disk Utility says “other” is taking up most of my storage but I don’t know where to find “other". Please help!
For information about the Other category in the Storage display, see this support article. If the Storage display seems to be inaccurate, try rebuilding the Spotlight index.
Empty the Trash if you haven't already done so. If you use iPhoto, empty its internal Trash first:
iPhoto ▹ Empty Trash
Do the same in other applications, such as Aperture, that have an internal Trash feature. Then restart the computer. That will temporarily free up some space.
According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation—not the mythical 10%, 15%, or any other percentage. You also need enough space left over to allow for growth of the data. There is little or no performance advantage to having more available space than the minimum Apple recommends. Available storage space that you'll never use is wasted space.
When Time Machine backs up a portable Mac, some of the free space will be used to make local snapshots, which are backup copies of recently deleted files. The space occupied by local snapshots is reported as available by the Finder, and should be considered as such. In the Storage display of System Information, local snapshots are shown as Backups. The snapshots are automatically deleted when they expire or when free space falls below a certain level. You ordinarily don't need to, and should not, delete local snapshots yourself. If you followed bad advice to disable local snapshots by running a shell command, you may have ended up with a lot of data in the Other category. Ask for instructions in that case.
See this support article for some simple ways to free up storage space.
You can more effectively use a tool such as OmniDiskSweeper (ODS) or GrandPerspective (GP) to explore the volume and find out what's taking up the space. You can also delete files with it, but don't do that unless you're sure that you know what you're deleting and that all data is safely backed up. That means you have multiple backups, not just one. Note that ODS only works with OS X 10.8 or later. If you're running an older OS version, use GP.
Deleting files inside a photo or iTunes library will corrupt the library. Changes to such a library must be made from within the application that created it. The same goes for Mail files.
Proceed further only if the problem isn't solved by the above steps.
ODS or GP can't see the whole filesystem when you run it just by double-clicking; it only sees files that you have permission to read. To see everything, you have to run it as root.
Back up all data now.
If you have more than one user account, make sure you're logged in as an administrator. The administrator account is the one that was created automatically when you first set up the computer.
Install the app you downloaded in the Applications folder as usual. Quit it if it's running.
Triple-click anywhere in the corresponding line of text below on this page to select it, then copy the selected text to the Clipboard by pressing the key combination command-C:
sudo /Applications/OmniDiskSweeper.app/Contents/MacOS/OmniDiskSweeper 2>&-
sudo /Applications/GrandPerspective.app/Contents/MacOS/GrandPerspective 2>&-
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 and start typing the name.
Paste into the Terminal window by pressing command-V. You'll be prompted for your login password, which won't be displayed when you type it. Type carefully and then press return. You may get a one-time warning to be careful. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator. Ignore any other messages that appear in the Terminal window.
The application window will open, eventually showing all files in all folders, sorted by size. It may take a few minutes for the app to finish scanning.
I don't recommend that you make a habit of doing this. Don't delete anything as root. If something needs to be deleted, make sure you know what it is and how it got there, and then delete it by other, safer, means. When in doubt, leave it alone or ask for guidance.
When you're done with the app, quit it and also quit Terminal. -
when i burn a disk in Disk Utility, the burn completes but the verification process does not complete and my disk pops out. The error message i get is something like this "burn failed because disk cannot be verified," PLEASE HELP.
Also when i take the disk out it seems fine nd everything seems to be burned onto the disk. I am buring mac os x lion onto a disk.
The disk i am using is nextech and i am burning at the slowest speed (4x).
Also this is my 3rd time trying to do this and the verifying process keeps failing.... what do i do?see there
http://www.techmixer.com/best-free-mac-burning-software-for-mac-osx/
what you like most
try different brand of CD/DVD -
I have a mid-2010 27" Quad Core i5 iMac running 10.8.3. Startup disk recognizes the primary hard drive as a startup volume but will not boot from it. Have tried zapping PRAM, ran disk utility. No errors reported Any thoughts?
My bad Eric. The startup preference recognizes the primary as a 10.8.3 startup volume but when u select it the system does not boot. I can only boot from my external backup drive
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My external drive won't mount. Disk Utility says it can't repair disk and to backup the disk and reformat, but how can I do that if it won't mount?
See mount section in 1st linked article.
Disk Unmount Using Terminal
Disk Utility – Force Mount Disk -
I replaced the screen on my late 2007 laptop, now it won't boot. It Bongs and the wheel turns and then it turns off. I have tried a tech tool pro 3 disk, no results tried the osX tiger disk no results but bong and wheel. any ideas?
I have not tried disk warrior yet,but will. I had it stored until I could get screen, battery is dead, and to be honest I forgot which OS I have in it, If I can Get screen up maybe I can get my info.
sbckrHi there sbckr,
You may find the troubleshooting steps in the article below helpful.
Troubleshooting: My computer won't turn on
http://support.apple.com/kb/ts1367
-Griff W. -
G5 will not boot from system disk or from Tech Tool Pro 5
Hi everyone - Having a bit of trouble and hoped I might find some answers here.
I suspect my system drive was having some issues as it sounded like it was being taxed and strained as I would open up applications from it. Upon verifying the disk using Disk Utilities, the test would stop short with the following message:
First Aid Failed
Disk Utility stopped verifying "Macintosh HD" because the following error was encountered
Filesystem verify or repair failed
In addition, an error message came up (in red) on the disk utility screen as well saying:
Volume header needs minor repair
The volume Macintosh HD needs to be repaired
Error: Filesystem verify or repair failed
Normally from here, I'd start up the computer from the Tech Tool Pro 5 disk (holding down C key upon restart). But when I did this, the computer never responded. Instead, the power was on but the screens went black and the computer went into a very quiet "idle" mode.
After about a minute, the fans began ramping up pretty high (and loud). This went on until I finally had to manually shut down the computer by holding the power switch down for a few seconds. I didn't know what else to do. Those fans were not coming down (not even after 10 minutes).
Anyway, I pushed the power button again and held the C key down. Still, nothing.... The fans stayed idle, for a little while and then ramped up again just like last time. I hit that same dead end and powered down the computer via the power button.
Is there an alternate way to boot the computer from Tech Tool Pro or the original start up disks? I'm having no luck, here.
I'm on my way into town to purchase a new internal drive (something with about 1TB of space) so that my pro apps can swim a little instead of being being bogged down on a 250G drive.
Thanks for any assistance, folks!
Oh yeah.... Happy New Year to everyone!!
SteveThe Install disk has version 10.4 on it. I have also tried booting from my OS 10.5 disk but with no avail.
However, here is an update on my plight.
Apple tech says that after hearing the symptoms, he thinks that one of the processors is shot. Being that my particular model of G5 (dual 2.7 processors) is a liquid cooled machine, it's possible that some sort of leak has formed and has either taken out a processor or has caused a processor to overheat. He says that this model of G5 has been known to do that. In this case, nothing will boot which makes me think that my original system drive may actually be okay. I'm taking it in for the tech to look at it and just be sure that's the problem. However, if it is a dead processor, the part alone would run $799 plus labor to install it. Frankly, that's just too much for me to pay to keep this old G5. I'd rather put that money towards a new or reconditioned Mac Pro 8 core or quad core machine.
I've owned several Mac computers in the past and perhaps this is the frustration talking but it seems that no matter how diligent you are in maintaining your Macintosh, these machines only seem to last about 5 years before something majorly wrong happens (mother board, processor, etc). Can I expect this same, limited time frame from a new Mac Pro? I mean, am I just being paranoid? -
Several months ago I bought a 64GB PNY USB memory stick to transpord data quickly.
It seemed to work fine. I could format it as a Mac partition and use it. I hardly ever need
it so I just put it away.
Today I wanted to use it to put a file on and take it to the Kinko's/FedEx to print, and I
find I cannot mount it on any of my computers, iMac, MacMini or MacBookPro.
In Disk Utility virtually everything is greyed out.
Disk Utility says: "This partition can't be modified" "This disk is not writeable and cannot be partitioned"
If I try to mount it, it says "This disk cannot be mounted"
There is no physical read-only switch or setting on the disk that I can see and it is very small.
I has a Mac OS installed on it, so I wonder if that is a problem? I should be able to write over that
or reformat it I would think.Thanks for these replies.
I've got regular time machine backups and just backed up some of my data by copying some key folders to an external drive. I'm bit paranoid about backup integrity and would ideally like to do another full backup to a different drive using a system other than time machine, in the event that something goes wrong with the time machine backup. Any recommendations on good and affordable backup software to do a backup of my TM backup?
One other question: I seem to encounter problems like this pretty frequently. I'd say once a year or so, my drive fails completely or gets near enough to failing that I have to wipe and restore. (I've never had a TM backup fail to work, though the last go around there were some hiccups which has led to my backup paranoia.) I've had this happen on multiple computers, so I'm becoming pretty convinced that the problem lies somewhere in my data. Is it possible (even likely) that there's something in my data causing this recurring problem? If so, is there anything I might be able to do to try and pinpoint and address this problem? I'd love to go one year without having to wipe/restore my machine!
For a while I thought I just had bad luck. But I think this is like the 4th or 5th time this has happened in the past 4 years and every time, I'm restoring from a backup, so I come back with the same data. It's the one constant since I've had 3 different machines over this same time period. -
My hard drive crashed. The disk utility says it can not repair. I tried to boot in safe mode but I stopped after 10 minutes. Is that impatient or how long can it take?
I have the installation disk but doesn't that erase everything?I have never bought a new computer from Apple so I don't know the details of what is covered by the warranty. You can try taking it to the Apple Store and they may have a copy of DW they can run. Or maybe not and they will just wipe the drive and reinstall the OS for you and if you haven't made a backup before they do that then tough luck. I'd check first!
If you buy Diskwarrior on DVD it will boot the computer. I think Apple Stores carry it, but you can also buy it directly from the vendor. I also don't use Lion OS so I don't know the details. You may be able to get their download version and boot from your recovery partition, then run it without a DVD. -
My Macbook aliminium unibody from late 2008 will not boot. I reach the grey screen with the apple icon and the spinning grey gear. I used disk utility to boot it but it said integrity test failed. I don't know what to do can anyone please help?
Sounds like you may have a harddrive issue. You are probably going to need to get that changed out and then install the OS X again to get it going.
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Hi my hard drive is failing and I'm overseas in Thailand. I bought a Buffalo 1TB to back up my mac 13inch HD version 10.6.8, only problem is it wont back up. Disk Utility says ex HD is fine. I need to backup before I take it for repairs. What can I do? Thanks advice appreciated. NL
I think we both had our wires crossed a little.
Then just go ahead and clone your internal drive to your Buffalo. You are not going to use Time Machine, and you do not have to partition it. So ignore all that stuff I posted. Let me start from scratch.
First check that your Buffalo drive is partitioned GUID and formatted Mac OS Extended, Journaled. So open Disk Utility, select the topmost entry for the Buffalo drive. You should see something like this:
I have selected the entry of my CalDigit drive. Note that the Partition Map Scheme is GUID. Now, select the volume (mine is "System Backup."
Here you see it is a Format type of Mac OS Extended, Journaled. If that's what you see then you are good to go.
With Disk Utility still open:
Clone using Restore Option of Disk Utility
1. Open Disk Utility in the Utilities folder.
2. Select the destination volume from the left side list.
3. Click on the Restore tab in the DU main window.
4. Select the destination volume from the left side list and drag it to
the Destination entry field.
5. Select the source volume from the left side list and drag it to
the Source entry field.
6. Double-check you got it right, then click on the Restore button.
Destination means the Buffalo drive. Source means the internal startup drive.
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