External disk unmounts and mounts without reason

Originator:murdocdv
Number:rdar://9727925 Date Originated:july 6, 2011
Status:Closed Resolved:No
Product:Mac OS X Product Version:10.7.0
Classification:Crash/Hang/Data Loss Reproducible:Yes
 
Summary: Once I upgraded to Lion, my external disk (named Annex) randomly unmounts and then within a minute, mounts again through no action of my own. I see a "The Disk was not ejected property" dialog (attached) when this happens, iPhoto 9.1.3 says my library is unavailable if it is open when this happens.

Steps to Reproduce:
I can't list any because I don't knowingly do anything to cause this situation to happen.

Expected Results:
External disk randomly powers down, unmounts, then seconds later remounts

Actual Results:
External disk stays mounted until the user unmounts the drive.

Regression:
Never happened in Snow Leopard from 10.6.0 to 10.6.8

Comments


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at bugreport.apple.com before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!