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Re: Disk drive sticktion(?)



In article <Bx98t5.HuB@hfglobe.intel.com> george@hfglobe.intel.com (George Rachor) writes:
>We receintly lost a disk drive in a Mac ][ ci to a problem known as drive
>sticktion.  This system was run continously for almost two years until a 
>power failure allowed the drive to cool for several hours.  At that point the 
>drive simply failed to resume spinning.  Our local dealer has managed to get
>the drive spinning again and saved our data.  We are going to replace the 
>drive as we simply cannot trust it now.
>
>I understand this is a common problem with 3.5 inch hard drives.  Does anyone
>know how the problem can be avoided?  The system is used in an application 
>that gathers data 24 hours per day.  Are some drives more prone to this problem?

The problem as I recall is caused by the spindle lubricant somehow caking.
The fix was a ROM change which exercised the drive every once
in a while. Most modern drives will show activity for no reason at
some interval for this reason.


>George L. Rachor Jr.
>Prefered mail address:
>george@endeavor.intel.com


Rich

payner@netcom.com