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Forum Discussion
Ultra 6 hard disk constant cyclic noise
Hi, I've been setting up my new Ultra 6 over the last few days, and have got most things sorted. One annoyance I've run into is a regular, repeating hard disk noise. I found this threads that de...
Update: The sound might be caused by Seagate's 'Directed offline scanning'.
http://www.silentpcreview.com/article611-page1.html
"We were a little concerned about Directed Offline Scan, which "runs diagnostics when storage access is not required". This poses an obvious question to for low noise enthusiasts: Are the diagnostics audible? A disc-wide scan in particular could produce seek noise when the drive should otherwise be idling.
To answer this question, we contacted Michael Hall at Seagate, who responded that the feature did not affect drive noise. Furthermore, the feature has been included on Seagate drives for about four years, which means his claim is quite simple to confirm. Unfortunately, a number of SPCR forum dwellers have noticed this feature making noise in the past, describing the sound as a buzz that occurs when after the drive has been idle for a while."
[2006-05-30]
also here:
http://www.silentpcreview.com/forums/viewtopic.php?t=23810
http://www.silentpcreview.com/forums/viewtopic.php?t=23671
All this fits what I'm hearing. The Ultra 6 is reading/writing to the disks for very brief periods, then less than a second after the disk has been accessed, the drives go back to doing this (annoying) directed offline scanning.
http://www.silentpcreview.com/article611-page1.html
"We were a little concerned about Directed Offline Scan, which "runs diagnostics when storage access is not required". This poses an obvious question to for low noise enthusiasts: Are the diagnostics audible? A disc-wide scan in particular could produce seek noise when the drive should otherwise be idling.
To answer this question, we contacted Michael Hall at Seagate, who responded that the feature did not affect drive noise. Furthermore, the feature has been included on Seagate drives for about four years, which means his claim is quite simple to confirm. Unfortunately, a number of SPCR forum dwellers have noticed this feature making noise in the past, describing the sound as a buzz that occurs when after the drive has been idle for a while."
[2006-05-30]
also here:
http://www.silentpcreview.com/forums/viewtopic.php?t=23810
http://www.silentpcreview.com/forums/viewtopic.php?t=23671
All this fits what I'm hearing. The Ultra 6 is reading/writing to the disks for very brief periods, then less than a second after the disk has been accessed, the drives go back to doing this (annoying) directed offline scanning.
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