System information

Mac mini (Mid 2011) Symptom Charts — Mass Storage 59
2011-07-21
Internal Drive Read/Write Error
Unlikely cause: power supply, AirPort/Bluetooth card, fan, speaker
Quick Check
Symptoms Quick Check
Drive Read/Write Error
Drive Bad Sector/Defective
Drive Formatting Issues
• Cannot save documents
• Read/write error message
• Hang when accessing or saving
data
1. Startup from known-good original system media
or an up-to-date, bootable OS X volume like :
-the same Mac mini model connected and setup
in Target Disk Mode,
-a compatible known-good up-to date Mac OS X
installed on an external drive,
-by pressing the Cmd-R keyboard keys while
restarting, to access the Mac OS X Utilities
available from Recovery HD.
Note: The computer may need to be connected
to a network with Internet access.
2. Verify S.M.A.R.T. status of drive using Disk Utility.
3. Repair disk using Disk Utility.
4. Erase partition and reinstall Mac OS.
Deep Dive
Check Result Action Code
1. Startup from known-good
original system media or an
up-to-date, bootable OS X
volume, run Disk Utility ‘Repair
Disk’ function and verify that it
completes successfully.
Yes Go to step 2
No Go to step 3
2. Restart computer. Verify that
system boots successfully from
internal drive and that running
the Disk utility ‘Verify’ function
reports no errors.
Yes Data error Issue resolved.
Return computer to user.
H07
No Go to step 3
3. Startup from known-good
original system media or an up-
to-date, bootable OS X volume,
erase partition and reinstall
Mac OS. Verify that installation
process completes.
Note: Make sure data has been
backed up before erasing
internal drive.
Yes Go to step 7
No Go to step 4