04-24-2012, 03:42 PM

Hello..

As many others have done before me, I decided to replace my optical drive with some extra storage (a 500GB HDD).
But this setup isn't exactly as good as I hoped for. Approx every 3 time I wake the computer from sleep the 2nd hard drive gets lost, not to be seen again until reboot.

Has any of you experienced this and perhaps found a solution to it?

I'm on an early Intel Macbook Pro, Core Duo 2.0GHz, with the optical drive running on PATA (IDE).



Kind regards

Mads
Denmark

04-27-2012, 12:00 PM

Somebody, anybody?

The only relevant thing that appears on google is this guy Nick, asking the same question.
But no answer as to what's causing it.
Find it here; powerbookmedic.com/manual.php?id=39

05-02-2012, 06:52 PM

Hey again.

I haven't yet found a permanent solution to the problem.
But I've come across this Terminal-command 'diskutil list' which listed both harddrives. And another that could re-mount the lost disk as read-only 'sudo mount -t hfs -o rdonly /dev/disk1s2 /Volumes/Nana HDD'.

For those who are interested; support.apple.com/kb/TA23941?viewlocale=en_US

05-03-2012, 08:35 AM

Hmm, I remember reading about earlier MacBooks having disappearing internal drives when I was investigating installing an SSD in my MacBook. I don't think I saw a fix for it.

Is the "put hard disk to sleep when possible" option checked in your Energy Saving settings?

05-30-2012, 03:27 PM

Hey Stretch, Thanks for your reply..

Yes all was unchecked in the Energy Saving settings.
But I think I've found a solution to the problem..

After spending a few weeks trying out different kinds for hypernation modes and messing around with the sudden motion sensor. (See here for more infomation -> macworld.com/article/1053471/sleepmode.html )
I remembered seeing some jumper pins on the back of the hard drive when I put in the SSD.
Apparently these are used for slowing down HDD speed on older systems. Since this is an old system I decided to take the computer apart and place a jumper on the hard drive, slowing it down from 3.0 Gbit/s to 1.5 Gbit/s..
Is been four days and the HDD hasn't ejected since. So hopefully this setup will continue to work..

/Mads