Disk accesses every 30 seconds or so?

Discussion in 'macOS' started by pubwvj, Mar 12, 2011.

  1. pubwvj macrumors 68000


    Oct 1, 2004
    Mountains of Vermont
    My computer is doing a disk access about every 30 seconds or so. This prevents it from putting the hard drives to spin down and prevents the Mac from going to sleep. A bit of a problem when running on battery unplugged from the AC power.

    PowerBook G4 15" AL 1.67GHz 2GBRAM
    (PowerBook5,8 = PowerPC G4 (1.5))
    MacOSX10.4.11 all up to date

    I have stripped down all extras such as MenuMeters, Tablet, DejaVu, etc.
    I have quite out of all applications so that just the Finder is running.
    I have sharing turned off (personal file, printer, fax, etc).

    Listening I hear the hard drive click approximately every 30 seconds.

    Opening and watching Activity Monitor I can't spot the culprit.
    I don't see anything to alert me in Console.

    Any suggestions on pinpointing what task is doing the disk activity that is blocking hard drive spin down and sleep?

    Many thanks,

  2. larkost macrumors 6502a

    Oct 13, 2007
    If you have XCode 3 or 4 installed, then you can use Instruments to look at disk access.

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