Thoughts -> Re: classiccmp server

[Doc Shipley]

Dan Wright wrote:

> On Monday 04 October 2004 14:58, John Foust wrote:
> 
>>The point of RAID is to save your data when a drive fails.
>>If the logic board goes, or especially the motor fails,
>>you're out of luck.
> 
> 
> True, but those failure modes are much less common the a media failure or head 
> crash.
> 
> That brings me to another point, though -- if you had 2 seperate disks in the 
> same enclosure, with no environmental isolation between them, you'd likely 
> kill both disks with a head crash on either one.  A head crash in a modern 
> high-speed drive tends to throw a lot of pulverized platter and head bits 
> around inside the disk, damaging the other platters that may not have been 
> involved in the actual crash.  So I think you'd need to isolate the sections 
> from each other with some kind of airtight (or at least 
> really-small-bits-of-metal tight) seal; probably doable, but would take up 
> more room that you're pretty low on already.
> 
> That sure would make an interesting drive :)  If it could be pulled off cheap 
> enough, it would be well worth it, too.

   Cheap enough to sell the idea of throwing away 2 drives when one fails?


	Doc