Intel Mac :: High Disk Activity - Reading And Writing
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 22, 2012
At times my computer runs very slowly. The activity monitor shows a lot of reading and writing, but not what is doing it. Is there any way to tell what is slowing things down?
Info:
iMac, Mac OS X (10.7.3)
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Jun 5, 2010
I recently bought a MBP 13" and plan to install windows XP SP2 on it via bootcamp. However, I've just read a few articles online about not being able to write onto the HDD while using windows xp since the partition would be formatted in ntfs? Does that mean I wouldn't even be able to install programs on my windows xp in boot camp??
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Jun 8, 2012
Well i just bought mac book pro with i7 processor, and my work requires a lot of arabic document reading amd writing i tried pages and word ma the letters are disjoint
Info:
MacBook, Mac OS X (10.7.4)
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Sep 15, 2009
Using SL. I installed iStat and it reports less "wired memory" being used than Activity Monitor. Right now iStat reports: 449MB wired, 515MB active, 364MB inactive and 2.45 GB free. Activity Monitor reports: 706MB wired, 515 MB active, 364MB inactive and 2.45 GB free. Also, our school macs are at a whopping 100MB wired, whereas I'm always above 500MB.
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Sep 2, 2009
since i upgraded to snow leopard on my macbook i have noticeably heard the hard drive much of the time. Activity monitor says that it is reading off the drive. Even does it with no apps open.
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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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Jul 14, 2008
I just purchased a mac pro about 4 months ago and I love it, I have never had a problem with it until today, I went to install a new program on it and it did not even read it, it made a hi pitched sound for a short time then stopped, waited about 10 seconds did the same thing. After a couple times of doing this it would eject the disc, so I figured I would try another disc, I have tried many different discs such as games, cds, programs and nothing has worked.
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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 4, 2014
I have an old Macbook via 2007 and I'm trying to update my operating system (currently OS 10.5.8) to Snow Leopard, but the disk is not reading in the disk drive. And unfortunately, Snow Leopard is only on a DVD, it can't be downloaded.I figure I have 2 choices:
1) take it in and spend $49 to have them do diagnostics and then tell me they probably need to replace the superdrive
2) I could buy an external optical drive. But I would need to know which one would be compatable with my old *** Macbook.
Info:
Macbook
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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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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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Mar 9, 2009
For some strange reason, my early 2008 Mac Pro keeps making hard-drive access sounds / head-moving sounds. It's been doing it non stop for 3 days now. The sounds are short, about 3 per second, about as fast as you would read this: "grind grind grind" then a short half-second pause, then repeat. Sometimes there's a longer 1-2 second delay. But it almost always seems like triplets, "grind grind grind"
I have no apps or background processes running that I've been able to discover. I've checked startup items, launch agents, and launch daemons.
I've checked Activity monitor but I see nothing unusual, and no correlation with any cpu activity.
I've checked disk utility and SMART is verified, permissions are repaired, and the disk is verified to be "OK."
I've tried fs_usage, lsof, and top, and see no correlation to anything.
I'm clearly missing something and am hoping someone can point out what it is? What else can I do to determine what the disk activity is doing? Are there any apps or other UNIX commands to check? Or is my drive dying?
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Apr 13, 2010
Okay, simple summary; I've got an external drive that I use for downloading large files, and for music (to reduce activity on my main drives), and this is exclusively used by Transmission (bittorrent), and iTunes as a result. However, very rarely I can hear the disk thrashing away, and this will continue even after I quit both programs, the only way I can seem to make it stop is by unmounting the drive and remounting it again.
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Oct 17, 2009
I'm running 10.5.8 on a 3.06GHz Intel Core 2 Duo iMac. The machine often slows down dramatically and i can hear the internal drive going like crazy. When I look in Activity Monitor however there's nothing chewing up much CPU. I can see that there's a lot of disk activity going on however. Unfortunately I don't see anyway in activity monitor to see what processes are accessing the hard drive. Does anyone know of a way to track down what processes are accessing the disk?
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May 10, 2009
I usually just turn off my monitor at night but for some reason, the HD constantly makes spinning noise even then the computer hasn't been used for hours ( i don't run time machine ).
Is there any way to tell what process is causing this stupid HD activity? My previous Dell machine was so much more quiet than this POS. I prefer not having to explicitly put the machine the sleep every time.
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Sep 1, 2009
I have SL installed since the release day and I've noticed that for some reason my hard drive is a lot more active than it was before. At first I thought it was indexing something (such as the spotlight index that needs to be built) but this has been going on for days now. Even during very light computer work (just one firefox window with macrumors) de disk still keeps going like crazy. It's not constantly, but definitely way more frequent than on leopard.
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Mar 21, 2010
I just bought an iMac 27" 4 cores, the one with the Intel i5. Sadly, this computer feels like my first iMac in terms of speed - it is sluggish and the reason for this is that the hard drive is being thrashed excessively. By using iStat Menus, I can clearly see that the disk is being constantly read, constantly at 3 MB/s, which is insane since I am not copying anything: I thought the culprit was Spotlight, so I turned off indexing on my main HD and the problem still persists. I cannot find one utility out there that will let me know what process is beating the crap out of my hard drive. Is there such thing for OS X? Something like Windows 7 resource monitor is exactly what I am looking for.
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Jan 10, 2008
My husband and I bought the family edition of Leopard last night, along with iLife08. I installed iLife while he installed Leopard. No problems on either Mac.
However, when I went to install Leopard, once I double clicked to start the install, it seems like my Mac won't "read" the disk. I get the spinning rainbow and there's lots of chugging sounds happening, but after almost an hour (yeah, I'm patient), it was pretty apparent that nothing was actually happening.
I'm really perplexed...it's not a disk problem, as it installed fine on my husband's Macbook...and it's not a drive issue as iLife installed just fine a few minutes before trying Leopard.
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Nov 9, 2009
I was trying to import a cd into my macbook pro this afternoon and it went in and clicked into place but then started making a huming sort of noise, but was you could hear it was not spinning, about 20 seconds later it ejected. I tried it multiple times and restarted my computer but nothing seemed to help. The disk drive isn't bent out of shape or anything and I've never had a problem with it until now.
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Mar 30, 2012
My 27inch iMac has suddenly started writing to hard disc at 1.6MB/sec continuously according to Activity Monitor. Very noisy, and slowing computer down.. Cannot establish what it is writing or why. No virus (never been used for internet).
Info:
iMac
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Mar 13, 2009
My son made me a DVD-r of mp3 files and a dvd on his new mac. I cannot get it to read on my system. Other CDs and dvds work fine so know disk drive is ok. I have tried the disk on windows based computers and it works fine. Is my computer too old to read or do you have a suggestion on how to read? When I insert the disk, nothing comes up on the desktop to click on to read.
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Jun 17, 2014
My Pro has stopped reading any disks.
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Apr 20, 2012
How do I quickly change writing direction in mail without going trough 7 different menu options? Is there a quick keyboard shortcut, or maybe an icon I can add to the mail bar?
Info:
iMac with OS X 10, Mac OS X (10.7.3)
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Jun 3, 2012
My Imac has recently began to show some problems with Dual layers DVDs that I did not experience before. It doesn't burn any DVD9 anymore. Even worse, I can not play any DVD9 I'd burnt on the same drive before, because they are constantly ejected, while before that (till 1-2 months ago) I had no problem with the same discs. With retail dvds or dvd5s (+R or -R). Does it mean that my DVD drive has become defective?
Info:
iMac, Mac OS X (10.6.8)
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Feb 5, 2009
Basically, my friend got his new MacBook Alu for Christmas, but currently all the hard disk is doing is reading constantly, even when he has nothing running.
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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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Feb 27, 2009
Blue-Ray has not been yet supported by Mac, I'm just wondering is there any high capacity disk can hold 25 GB audio files or more?
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May 12, 2012
My iMac won't read my SD card. Once I ejected the card it stopped reading SD cards. I updated my system and it read the card, but then once I ejected it it stopped reading cards again.
Info:
iMac (21.5-inch Mid 2010), Mac OS X (10.7.4)
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May 28, 2012
Has anyone else had a problem with a DVD+R not reading in the DVD drive on the Mac?
Info:
iMac
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