Linked by David Adams on Tue 20th Mar 2012 17:27 UTC, submitted by sawboss
Hardware, Embedded Systems "In the world of hard drives storage, density is king and Seagate has just achieved a major breakthrough that guarantees major storage gains for the next decade. That breakthrough is managing to squeeze 1 terabit (1 trillion bits) of data into a square inch or space, effectively opening the way for larger hard drives over the coming years beyond the 3TB maximum we currently enjoy. How much of an improvement does this storage milestone offer? Current hard drives max out at around 620 gigabits per square inch, meaning Seagate has improved upon that by over 50%. However, that's just the beginning."
Thread beginning with comment 511434
To view parent comment, click here.
To read all comments associated with this story, please click here.
RE[4]: Faster now !
by Alfman on Wed 21st Mar 2012 15:41 UTC in reply to "RE[3]: Faster now !"
Alfman
Member since:
2011-01-28

A very clever OS might even be able to pragmatically determine the disk's phase and velocity by timing it's response latencies. It might then create a model in software of the disk's platter/head position at any given point in time and then determine which disk of a raid array is more likely to respond quicker and then only send the request to that disk.

I have to wonder whether any of this micromanaging could offer a performance benefit over a simpler implementation of using a dual disk elevator algorithm. Even a 25% increase in seek speed might be worthwhile for a seek-bound database.

Reply Parent Score: 2