> The theory > is solid but the question is, will doing an async read on a > DVD drive where there may be dozens and even hundreds of > async directory reads going on be detrimental to the drive or > any hardware?
How is the theory solid? You will be sending multiple read requests to a device with only one read head. It stikes me that doing a directory scan asynchronously on a device with only one head is going to put extra stress on the hardware and could well be slower than doing a single threaded recursive scan due to the extra head movements required as it moves from 1 request to the next. Given this, I'd expect an async scan if performed regularly to significantly reduce the life expectancy of the drive mechanism. Now, if you were talking about reading data from a RAID array say RAID 5 or RAID 0+1 then you would probably see significant performance gains from the code as you have multiple heads reading the data for multiple requests simultaneously... This would be very neat! Paul ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:250746 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
