John Walker Posted October 16, 2018 Share Posted October 16, 2018 I haven't noticed this before but all three of my 2Tb Seagate external drives are blinking at about 1 second intervals. They do this continuously whether busy or not and are not blinking in unison. They are all working correctly and a restart of my PC makes no difference. Would appreciate any comments of suggestions. John Link to comment Share on other sites More sharing options...
Niels Quist Posted October 16, 2018 Share Posted October 16, 2018 Try winking back Link to comment Share on other sites More sharing options...
MDM Posted October 16, 2018 Share Posted October 16, 2018 It may be they that the OS or Lightroom is caching data on the disks. I don’t know anything about Windows but Lightroom can cause behaviour like this although it should not be permanent. I should say I recall that you started using Lightroom recently. Or maybe it is backup software running in the background. Or it could be they are all going on the blink simultaneously even if not in unison so be sure you have backups. Link to comment Share on other sites More sharing options...
spacecadet Posted October 16, 2018 Share Posted October 16, 2018 If it helps, my Seagate's light is permanently on. It doesn't seem to change during read/write. My Toshiba flashes during read-write and every 5 seconds at idle. Link to comment Share on other sites More sharing options...
MDM Posted October 16, 2018 Share Posted October 16, 2018 Actually for my WD portables, slow blinking indicates that the disk is mounted but having a snooze. There is a non-blinking light initially which starts blinking when the disk sleeps. Fast blinking occurs when it is caching or other active reading or writing. Link to comment Share on other sites More sharing options...
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