iMac Hard disk rumors

Discussion in 'iMac' started by fa.ce, May 5, 2015.

  1. fa.ce macrumors 6502

    Oct 8, 2006
    My iMac 27 late 2009 hard disk (2TB) continuously seems to read/write files (i've crash plan, dropbox, time machine, etc. always on) and make continuously rumors ...
    I've seen at the activity monitor but not seem to find any unusual ...
    Any hints to discover which app can cause this unusual rumors ...
    Or if there could be something that not goes fine with HD ?
  2. ApfelKuchen macrumors 68030

    Aug 28, 2012
    Between the coasts
    With a HDD of that age, it's a strong possibility that noise is due to mechanical failure.

    If you don't have a backup, make one as soon as possible.

    Run Disk Utility > Verify Disk.

    Go to About This Mac > System Report > Hardware > SATA to locate the HDD's S.M.A.R.T. status. While S.M.A.R.T. does not always catch problems before they happen, if it does report something, believe it.
  3. fa.ce thread starter macrumors 6502

    Oct 8, 2006
    Check disk: ok
    Status S.M.A.R.T. Verified (means ok ?)

    i've to say that noises not always happens
    finger crossed
  4. Fishrrman macrumors G5


    Feb 20, 2009

    What version of the OS are you running?
    How much RAM do you have installed?
    How full is the internal hard drive?

    If it's a more recent OS, the disk thrashing you hear may be due to virtual memory doing its thing -- that is, "page ins" and "page outs" from RAM to disk and back.
  5. MartinAppleGuy macrumors 68020


    Sep 27, 2013
    Sounds like this will be the most probable cause to the OPs issues.
  6. fa.ce thread starter macrumors 6502

    Oct 8, 2006
    Yosemite 10.10.4
    8 GB RAM
    1TB free (on 2TB)

    It should be not related to these, isn't it ?
  7. rkaufmann87 macrumors 68000


    Dec 17, 2009
    Folsom, CA
    The best test you have available is to run Apple's Hardware Test in extended mode 2-3 times. The reason to run AHT in Extended Mode is that provides the most thorough test, running the normal mode provides worthless results. The reason to run AHT multiple times is it does not always find errors after the 1st or 2nd time, however when it does they are correct.

    If for some reason you cannot run AHT then take it to an AASP to have it professionally diagnosed. NO forum can accurately tell you if you have a HD problem without thorough testing.
  8. Samuelsan2001 macrumors 604

    Oct 24, 2013

    is good advice

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