Originally Posted by BllDo
Very good info. Thank you.
The cheapest I've seen the Toshibas is $46/TB. Think I'll pick up a couple of the Seagates while they are still on sale.
Aside from the new platters, users are getting 7,200 RPM spindle speed, 64MB cache and several Seagate technologies like OptiCache, which makes the cache process more efficient, SmartAlign which helps legacy computers play nice with 4K sectors and DiscWizard which allows operating systems like Windows XP to take advantage of the full 3TB capacity.
To me- newer design + 1TB platters = better. It's able to deliver more robust performance than other 3TB drives using 800GB or 600GB platters, and it does not use any more energy.
I think it's mostly a myth today that GREEN drives use less energy, and 7200rpm drives must use much more. That's not really true. At least not when you compare a 2 year old design to a modern one.
It's how you win^
Seagate Barracuda Specs 3TB
3TB - 64MB cache (ST3000DM001)
Spindle Speed - 7,200 RPM
Average read - 156 MB/s
Max read - 210 MB/s
4096 bytes per sector
Six heads, three disks
Power - Operating 8.0W, Idle 5.4W, Standby .75W
OptiCache, AcuTrak and SmartAlign Technolgies
One of the more telling aspects of any newer hard drive is looking at its performance at the inner and outer edges of the platters. As drive density increases or rotational speeds get faster, users can generally expect data transfer speeds to increase as well. In the case of the new 3TB Barracuda , transfer speeds measuring just under 200MB/s compared to under 140MB/s of the previous generations and models. This has been an Achilles heal for GREEN and RED drives as they slow down significantly when they are full, and slow down depending on where the data is stored (inner vs outer edges of platters)
My 3TB and 2TB WD Green drives with 5400rpm spindle speed can read or write at 100MB/sec when new- but slow down to 60MB/sec when full in some situations. Seagates slow down too. But they slow down from about 200MB/sec to about 110MB/sec.. with an average somewhere in between those two for most real world scenarios.
I know I get beat up a lot by Assassin and some of the PRO GREEN advocates on these forums but to me it's a real benefit that should not be dismissed when you factor in the Seagates are cheaper, and they don't really use much more energy or make an excessive amount of heat or noise. Only in a very demanding or delicate situation (like a HTPC in a bedroom) would I think it would even be a factor at all.
For a server- With multiple drives. No way.