Is tempting. Are these drives any good/durable units? Or is Enterprise just a moniker? Or is SAS the way to go for durability in HDD, but way more expensive?
Here are the important stats:
MTTF - 1.2 Million hours with 24/7 duty cycle
Non recoverable error rate < 1 in 10^15
Shock 70G operating, 300G non-operating (2ms)
Load\Unload - 600,000
Operating temperature - 5C-60C
These compare favorably to say the WD RE4 (in all cases at least as good). Now these are just manufacturers specs, but at least on paper, yes these are good/durable units.
For further comparison, Toshiba's own SAS drives have all the same stats except a MTTF of 1.4 millions hours for 3.5" 7.2K drives. If you go to 10K or even 15K drives, the Non recoverable error rate is an order or magnitude better, < 1 in 10^16, but these drives are a very different price point, and the largest is 1.2TB.
You can verify the numbers yourself here:
Toshiba MG03ACA300 spec sheet:
http://www.rm.com/_rmvirtual/media/downloads/1yy312_1yy647_1yy648_manual.pdf
WD RE4:
http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-771444.pdf
Toshiba Enterprise drives:
Enterprise HDD | Storage Products | TOSHIBA Semiconductor & Storage Products Company | Americas