IMac :: Why Is Writing Data To The Disk
Nov 24, 2010
so everyone knows the iMac hard drive can be a little noisy, but I just want to know what exactly is being "written" to the disk while doing normal tasks like web surfing.
I often use Safari and can hear the hard drive churning and Activity Monitor will show high red spikes of written data. What is this data being written? Is it normal?
Here's a screen shot of my Activity Monitor while web surfing and watching video with my EyeTV device. Does this look like normal activity to you?
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Jun 5, 2010
I've made two coasters today on my iMac 27" core i7.
I am using Verbatim DVD +R DL blanks and utilized Disk Utility to make one coaster (copy to a .CDR and then burned) and then used Toast 10 to write IFO files.
The DVD will "run" but looks and sounds like a satellite tv signal in bad weather - choppy all over the place. This happens on 4 players - two separate laptops, an xbox 360, and even the original iMac 27" I used to write the DVDs.
I have had no problems whatsoever writing single layer DVDs (even using old Comp USA blanks!) and playing them on aforementioned players.
Anybody have any success writing DL DVDs? If so, what brand of disc did you use? Did you reduce speed to 2x writing? Help - I don't want to create any more coasters!
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Nov 19, 2008
I installed ntfs3g on my MBP and it seemed to be working correctly and I had write access to my usb disk.
While I was copying a large file to my disk, the disk was suddenly unmounted from OSX ( I had a warning saying that I should use proper unmount the next time).
I mounted it again but now I cant access the directory I was trying to copy the large file anymore. All the content of this directory is not there anymore.
When I try to access it via Windows, it says "Directory E:Backup is not accessible. The file or directory is corrupted and unreadable"
... owned
What shall I do ? It seems that the other directories are ok. I'd like to recover the lost directory but I'm scared to screw up and lose everything.
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Dec 3, 2010
Got my new iMac 27" i7 2.93 for three weeks ago. Everything was kind of fine but now everytime i boot it starts to write to the disk, and since you really can hear when the machine writes to the disk, it's obvious when it does it. The disk is a WDC WD1001FALS-40Y6A0
- I turned of spotlight indexing, rebooted, 30 minutes later it was still writing like there was no tomorrow.
- Checked Console.app, just Google Chrome trowing messages (which is running slower then on my old MBP Santa Rosa 5400 rpm).
- Ran disk utilty repair permissions, still no luck.
- Used Lingon to get rid of **** at startup, still no luck.
- No disk encryption.
The bottom line: The machine runs slower, boots applications slower and functions slower then my old MBP 2.4 ghz Santa Rosa 2007 with a 5400 rpm hdd. I tried to run a blu ray mkv from the internal disk, stuttered as hell and didn't work despite VLC being the only open application. Then i ran it from an external 5400 rpm Firewire drive and it worked flawlessy. What is up with this? Shall i reinstall and empty my disk?
Is there any software for checking what applications is currently writing to the HDD?
Screenshot from my activity monitor.
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Aug 14, 2009
I'm using NTFS-3G and have one of my Windows' installations partitions mounted in OSX. I like being able to write to it, but I'd like to prevent OSX from making its invisible files (like ._filename.txt for something I've edited with TextMate) on it because they show up in Windows and are generally of no use. Likewise there's no need to have things like .Trashes there since NTFS-3G can't delete to the trashcan anyway.
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Mar 1, 2012
I have noticed a lot of disk activity reading and writing, it maxes out in bursts up to a couple of minutes at a time and overall seams to be reading and writing a lot of the time, with no processor activity at all. There is no obvious culprits in the activity monitor but terminal displayed large number of read and writes for mds, but spot light is not indexing (no dot in Mag glass) and this has been happening from months now.
Possibly longer noticed it when recieved replacement drive due to crook seagate, may have been doing this but could not hear it. Running last Snow Leopard on iMac 27 mid 2011 i7 custom with 8 gb of ram. also should note this unit has had load of issues Bad Ram, some software problems would not sleep (software) none of which have ever manifested on any of my other (older) macs. Also have noted that this drive activity does seem to coincide with using safari on occasion??
Info:
iMac (27-inch Mid 2011), Mac OS X (10.6.8)
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Mar 17, 2010
I just attempted to transfer my files from my old powerbook G4 15" to my iMac 20" using Target disk mode. First I tried to use a firewire cable but it didn't work, I think I was using a 400-400 instead of a 800-400. So I used the option to connect to two computers over a shared internet connection using a password. I thought It would automatically transfer my photos and other files but it just transferred these weird extensions for applications and I don't recognize any of it. To make it worse, I tried to open photoshop on my iMac and now its asking for a password! None of the photoshop series would open, it's asking for a serial number. I had photoshop installed before and the guy doesn't live in my state who installed it for me and I don't have any of the original disks. I know Dell does system restore but Macs work differently. I wish I could undo this whole mess, I need photoshop!!
I dont have the original OS disk either, ughh I should have just splurged on a portable hard drive.
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Jul 11, 2010
I have a couple of questions regarding backing up my external drive. I've got a 2TB external drive with about 1.5TB of movies, Music etc. I've got another identical empty drive that I want to keep a backup of the first drive on. So my question is what is the best way of backing up this data? I thought of using disk utility(I'm running snow leopard 10.6.4 if that makes any difference) to created a mirrored RAID set. If I plug in the empty drive then create the RAID set will my first drive get wiped when the set is created? or with it leave the data on the first drive intact? Or should I just use something like crashplan to backup to the 2nd drive?
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Jun 7, 2012
When I go on iPhoto I click on the "import all" button and try imorting my pictures from my iPhone to my mac and after a while of importing it completely stops and a window pops out saying "Error writing to disk" and I really don't know what to do to this solution.
Info:
iPhoto '09, Mac OS X (10.5.8)
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Aug 3, 2010
One of my drives is showing issues that Disk Utility isn't catching or can't find. I've heard about Diskwarrior, iDefrag, Drive Genius, etc... but which one is the most comprehensive, is there a "best of breed" disk app out there or one that does more than the others?
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May 22, 2009
I just bought a new WD hard disk and backed up all my data to it (80 GB). I then performed a clean install on my Macintosh HD.
Before I restored my data to the internal drive, I thought it would be a good idea to copy my fresh installation to a new partition on the external disk.
So I booted up disk utility to check if partitioning would affect my data. Using the partition tool, I clicked the plus sign (without applying changes). Disk utility said that if I add a partition, it would simply add a new volume and that the previous volume would not be erased. I clicked apply, and now there is nothing left of my data in the original partition.
Can I get it back? Undo the partition, or file recovery?
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Feb 15, 2010
i have a hard drive i use mostly in Windows that i lost data and want to recover it. i've played with some of the free utilities on the internet but they either take too long or aren't very good.
since Tiger reads NTFS partitions i was going to try it on my Mac Mini.
i usually use a laptop and don't have time to leave the recover running for 10 hours or more. any good free utilities out there?
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Apr 5, 2012
is it possible to read on my mac a blu ray disk that only has data on it?
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Dec 19, 2010
After some warning signs in the last few weeks (not ejected properly, drive icon disappearing from desktop) my Lace BigDisk Extreme 1TB Drive is now seemingly gone forever. No backup.
Not ejected properly warnings were inappropriate as I never unplugged it ... icon disappearing - I simply pulled to power supply pin out of the back and re-inserted it and it came back. Now it-s gone. Lacie has sent a new power supply to me but it did not solve the problem ... the power supply brick light blinks very faintly .. when I pull the p/s pin out of the drive, the power supply brick lights up solid green.
This type of failure seems to be a common occurence. Anyways, I need to recover the data if possible. My options seem to be:
1. Pay a data recovery service $600.
2. Buy the current version of the Lacie that I have and swap out the disks, so that I can at least get to the data. I believe that the current version is the:
d2 Quadra Hard Disk 1 TB eSATA/FireWire800/FireWire400/USB 2.0 .. does anyone know for sure?
3. Buy some other lower priced enclosure with usb or firewire interface to get to the data (but I don't have a clue what to buy)
Does anyone know if either options 2 or 3 will work and which would be the least painful to deal with? I'm not a hardware guy
Lastly, I cannot get the screw off of the back of my dead Lacie drive .. it appears to be a small phillips head but it turns out it's not. What tool do I need to get it off? Or is it opened up some other way?
If anyone could guide me thru the steps to recovery it would be much appreciated!
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Dec 20, 2010
I have Macbook with Mac OS X 10.6.4. I have 500 gb internal hard drive. I only have 297 gb data in my documents but finder shows that my harddive has 472gb of data and only 28 gb left.
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Mar 28, 2008
I just installed Vista on my Mac Pro (2.8 GHz Octo, 4 GB RAM, 8800 GT, 500 GB Caviar SE from WD) and I get 5.9's for everything but "Disk data transfer rate" - which is a 5.7. I know that is nothing to complain about, but I am just wondering what would earn a 5.9? Would it take a raptor to do that? Or just mine is not all that fast or something?
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Feb 13, 2009
I currently have a 750GB HFS+ disk (system) which has about 300GB of data on it. I want to add 2 partitions to it - ideally without having to copy everything off, wiping it, adding the new partition setup and copying everything back.I seem to remember there was a utility that did this - or am I imagining it?Also, the 2 partitions I want to add are PC partitions - so my disk will end up looking something like...
465GB HFS+
200GB NTFS
32GB FAT 32If I can do this, what is the best way to format these partitions in these PC formats?And what is the best way of cloning my current PC partitions (on a different disk) and copying them over to the new PC partitions that I will be adding to my system disk?
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Jul 18, 2009
first off, long time MacRumors reader, finally joined the forum now in search of some aid.There are some other threads on a similar topic I know, but I was hoping for some So, the Hard drive in question is a Western Digital 5400rpm 320gig purchased from Amazon about 8 months ago, now the Hard drive has decided to die. I saw some early signs, but did not realise that the drive was in that bad of a condition at the time. Now, when attempting to boot into Mac OS X I get stuck at the Apple logo, with the little wheel spinning infinitely. I had a boot camp partition which worked, but could not help me and is no longer an option either. I tried using the Leopard boot disk, but Disk utility didnt do anything for me in terms of recovery or repair, I attempted to use the terminal to make an Image of the drive on an external, but it fails about 10% through, I'm assuming from corrupted data.
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Jun 17, 2010
I had a WD external hard disk which I was using on my pc but not any more since I'm not a PC user any more. However, I'm a mac user now but when I connected my WD external hard disk I found out that I have lost everything on it. I thought may be because of my mac so I connected on my PC again and i have not seen any file which means I lost everything. Give me any software on mac that will get everything that I have lost.
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Aug 4, 2010
I'm erasing some partitions on a Mac that's leaving my possession, is Zero Out Data secure enough? To erase everything?
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Mar 8, 2008
I'm leaving it even later than most to retrieve some old data. I have some Quark 3.32 (I think) files that were DDd in 98-99 and I'd like to retrieve them. As these are essentially text files I'm not in the slightest bothered about how they appear but if I can get the words back it would be marvellous. I've seen people suggesting DDexpand.sea but that doesn't seem to help. I have OSX and not Classic or OS9 or anything like that - have I left it too late? The material is not sensitive so even if I could send a couple of files to someone to extract that would be wonderful
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Jun 10, 2012
I have a new iMac with two disks- the SSD and the 1TB hard drive. Lion was loaded onto the SSD, so that's my start up drive. I need to migrate all the data from my old iMac (also has Lion) to the new one. When I run Migration Assistant, it thinks I want the old mac migrated , which of course, doesn't have enough space for all the data. I can't find any way to tell it to migrate to the 1TB hard drive.
Info:
iMac, Mac OS X (10.7.4)
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Jun 28, 2012
It was bad sign and I had to take my computer to the Apple service.
The intern disk had to be replaced and they told me that they can't recover the date ( not in theyr shop)
How works the data recovery once the disk is out of the computer ? Is there necessarily a "white room" process wich is very expensive ?
Info:
iMac, Mac OS X (10.6)
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Mar 9, 2010
I been having disk error with the 2TB disk in my new 27" imac The errors looks like this:Verifying volume ?Macintosh HD?Performing live verification.Checking Journaled HFS Plus volume.Checking extents overflow file.Checking catalog file.Missing thread record (id = 1336149)Incorrect number of thread recordsChecking multi-linked files.Checking catalog hierarchy.Invalid volume directory count(It should be 197788 instead of 197789)Checking extended attributes file.Checking volume bitmap.Checking volume information.The volume Macintosh HD was found corrupt and needs to be repaired.Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
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Dec 12, 2009
My old Mac, G4 tower running 10.4.11 died. I need to recover data from the hard drive. I put the drive in a disk drive enclosure via USB but my new Mac, Mac Pro Intel, 10.4.11 cannot read the drive. I get an error message, "this drive is not readable by this computer, eject, initialize". It sees the USB drive in disk utility but cannot see the data.
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Dec 9, 2010
is it possible to recover data from a crashed Mac hard disk on a windows platform.
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Jul 15, 2009
I have today received my shiny new macbook pro - very excited!I currently have a macbook, and I previously upgraded the hard drive to 320 GB (same as the new Macbook Pro). What I wanted to do was just swap the hard drives - however when I put the macbook hard drive in the macbook pro it didnt boot. Pressing ALT on startup it sees the hard drive but just hangs (doesnt even show the apple sign).I dont have all the application disks so dont really want to start from a fresh install - I was thinking of cloning the disk with super duper, but that probably will have the same effect of swapping the disk!
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Feb 28, 2010
I would never opened a topic like this if I had not a similar experience with expanding 'dmg' in the past!
A truly bad experience! It is supposed that using 'disk utility' I can resize-expand-make bigger any dmg file. Every time I tried it, it was a totally fail process.The 'disk image' dmg did not resized at all.
I do not know why, it just happened to me many times.
Does anyone had similar experience? Any solution to this? So if I have a dmg that need to be bigger, I create a new one from scratch and I copy paste files from the old dmg.I need to do the same with hard disk partitions, using disk utility once again. I need to resize my hard disk partitions.Does this process works well as it should be, or it is a bad-implemented feature?
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Feb 8, 2012
How do I get data back from an extern hard disk?
Info:MacBookPro, Mac OS X (10.7.3)
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Feb 26, 2012
Any NTFC free drivers fo mac.? want to copy data from Mac to windows/External disk
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MacBook Pro, Mac OS X (10.7.3)
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