Toshiba today released four new large capacity nearline hard disk drives (HDDs), including the first self-encrypting models in the company?s enterprise capacity-optimized storage lineup. The 3.5-inch 7,200 rpm MG Series includes both SATA models - the MG03ACA400 and the MG03ACA400Y - and SAS models - MG03SCA400 and the MG03SCP400 - and all deliver 4TB of storage, the company's largest capacity to date.

The high capacity of the MG Series is suited for RAID storage and arrays, tiered virtual infrastructures for public and private cloud deployments, archives, and disk-based backup and data protection solutions.

Utilizing Toshiba's latest five-platter mechanical design, the new 4TB models provide a 100 percent increase in capacity over Toshiba's prior business-critical models while improving the power-profile and operational efficiency in the industry-standard 3.5-inch form factor. The new 4TB models also deliver an 18 percent increase in sustained transfer rates for both the SATA and SAS interface versions. In addition, the MG Series includes power management features designed to reduce power consumption during off-peak activity periods.

The optional SATA self-encrypting (SED) models support fast and secure cryptographic- erase using both the latest T13 SANITIZE crypto-scramble protocol and the older T13 ATA Security Erase command protocol. The optional SAS SED models support both the T10 SANITIZE crypto-erase feature and the Trusted Computing Group Enterprise Security Sub-Classification protocols. These security technologies support "nearly instantaneous" cryptographic-erase of user data to enable fast and secure device retirement or re-deployment. Using SEDs can eliminate the need for lengthy data overwrite cycles and reduce IT department expenses associated with secure data destruction and device sanitization.

Toshiba will start delivering samples of the MG 4TB series models in December, with volume shipments scheduled to begin early next year.

Specifications
SATA 6Gbps Models
Standard	MG03ACA400	MG03ACA300	MG03ACA200	MG03ACA100
Encryption T13 SANITIZE crypto-scramble & T13 ATA Security Erase	MG03ACA400Y	MG03ACA300Y	MG03ACA200Y	MG03ACA100Y
6Gbps SAS (2.0) Models
Standard	MG03SCA400	MG03SCA300	MG03SCA200	MG03SCA100
Encryption T10 SANITIZE crypto-erase & TCG-Enterprise SSC	MG03SCP400	MG03SCP300	MG03SCP200	MG03SCP100
Capacity
Capacity	4TB	3TB	2TB	1TB
Performance
Buffer size	64MiB FIFO ring buffer
Rotation speed	7,200 rpm
Average latency time	4.17 ms
Average seek time (read)	8.5 ms
Average seek time (write)	9.5 ms
Sustained transfer rate (maximum)	165 MB/s (4TB models); 155 MB/s (1TB, 2TB, 3TB models)
Reliability
Load/Unload	600,000 times
MTTF	1,200,000 hours
Operating condition	24 hours/day, 7 days/week, 100% duty
Supply Voltage
Allowable voltage	5V ±5%, 12V ±5%
Power consumption
Read/Write	11.3 W
Low power idle	6.0 W
Dimension
Height	26.1 mm
Width	101.6 mm
Depth	147 mm
Weight	720 g (max.)
Temperature
Operating	5～55℃
Nonoperating	-40～70℃
Vibration/Shock
Vibration resistance (operating)	7.35 m/s2 {0.75G, 5～300Hz}
	2.45 m/s2 {0.25G, 300～500Hz}
Vibration resistance (nonoperating)	49 m/s2 {5G, 5～500Hz}
Shock (operating)	686 m/s2 {70G, 2ms duration}
Shock (nonoperating)	2,940 m/s2 {300G, 2ms duration}
Acoustics
Acoustics	31 dB
Warranty
Limited Warranty	5 years (from date of purchase)