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  1. #1
    external HDD not sleeping
    jif's Avatar
    Member Since
    May 10, 2011
    Location
    Durham, UK
    Posts
    93
    Specs:
    27' iMac i5 (2010)  iPad2  iPhone5  iPhone 4S  Apple TV2  iP
    external HDD not sleeping
    hello...

    I've got a 2TB WD 'my book' HDD connected to my 2011 I5 iMac as my time machine. I've also got a 1TB maxtor external HDD connected that I put other stuff on.

    If I eject my HDD's and 'sleep' my mac, both external HDD's shut down then start up and shut down.. this process happens over and over...

    I'm at the point I don't sleep the mac anymore as this cannot be good to the external HDD's

    any idea why this is happening ?

    Thanks
    27' iMac 2.8ghz intel quad core i5  white iPad2 32 gig wifi only  white iPhone5 16gig  black iPhone 4S  black iPod touch 8gig  80gig iPod classic  apple TV2  2TB crap dog slow time capsule 

  2. #2
    external HDD not sleeping
    jif's Avatar
    Member Since
    May 10, 2011
    Location
    Durham, UK
    Posts
    93
    Specs:
    27' iMac i5 (2010)  iPad2  iPhone5  iPhone 4S  Apple TV2  iP
    oooh pants, can no one help me with this one please .... it's doing me head in...
    27' iMac 2.8ghz intel quad core i5  white iPad2 32 gig wifi only  white iPhone5 16gig  black iPhone 4S  black iPod touch 8gig  80gig iPod classic  apple TV2  2TB crap dog slow time capsule 

  3. #3
    external HDD not sleeping
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,245
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    It's probably the firmware on the drives themselves that's causing this. I have the same iMac as you do and do not attach my external hard drives until I need them. That includes the one I use for Time Machine. I realize that not everyone can remember to attach their drive and make a backup, but I prefer to do it that way. Reduces the wear and tear on the drive and since I find making backups every 30 minutes ridiculous to begin with, attaching the drive when I wish to make a backup works for me.

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