Temperature | Seagate ST373307FC, ST3146807FC, ST336607FC manual

Cheetah 10K.6 FC Product Manual, Rev. B

ST336607FC

Typical power dissipation under idle conditions is 7.89 watts (26.9 BTUs per hour).

To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 9). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123.

ST336607 FC CURRENT/POWER vs THROUGHPUT (2 gig)

Random 8 Block Reads

						18.00
	1.700
						16.00
	1.500
	1.300					14.00
	1.300
Amperes	1.100					12.00
	1.100
	0.900					10.00


	0.700					8.00
	0.700
	0.500					6.00
	0.300					4.00
	0.0	50.0	100.0	150.0	200.0	250.0

I/Os per Second

5Volt A 12 Volt A

Watts

Power (watts)

Figure 11. ST336607FC DC current and power vs. input/output operations per second

Note. Values shown are for operation at 2 Gb, for operation at 1 Gb, reduce the +5V by.10Amps. The +12V current values are not affected by loop speed.

Figure 12. Environmental limits

Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C). Maximum wet bulb temperature is 82°F (28°C).

6.3.1Temperature

a.Operating

With cooling designed to maintain the case temperature, the drive meets all specifications over a 41°F to 131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 36°F (20°C) per hour. The enclosure for the drive should be designed such that these temperatures are not exceeded. Air flow may be needed to achieve these temperature values (see Section 8.4). Operation at HDA case tem- peratures above these values may adversely affect the drives ability to meet specifications.

The MTBF specification for the drive is based on operating in an environment that ensures that the HDA case temperatures are not exceeded. Occasional excursions to drive ambient temperatures of 131°F (55°C) or 41°F (5°C) may occur without impact to specified MTBF. Air flow may be needed to achieve these temperatures. Continual or sustained operation at HDA case temperatures above these values may degrade MTBF. The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122°F (50°C).

To confirm that the required cooling for the HDA is provided, place the drive in its final mechanical configu- ration, perform random write/read operations. After the temperatures stabilize, measure the case tempera- ture.

The maximum allowable HDA case temperature is 60°C. Operation of the drive at the maximum case tem- perature is intended for short time periods only. Continuous operation at the elevated temperatures will reduce product reliability.

ST336607FC, ST373307FC, ST3146807FC specifications

The Seagate ST373307FC, ST3146807FC, and ST336607FC are robust hard disk drives designed for enterprise environments where reliability and performance are critical. Each model offers distinct features suited to various data storage needs, reflecting Seagate's commitment to innovation in storage technology.

The ST373307FC is a 73GB Fibre Channel hard drive that operates at 15,000 RPM, making it exceptionally fast for read and write operations. This drive employs a 4GB cache, enhancing its performance by allowing quicker access to frequently used data. With a 3.5-inch form factor, the ST373307FC is built for high-density environments, delivering reliable access to data. Its Fibre Channel interface supports high-speed connections, essential for data-intensive applications like databases and virtualization.

Next in line, the ST3146807FC offers a capacity of 146GB, also operating at 15,000 RPM. This drive features an 8GB cache, which significantly improves its data transfer rates, making it ideal for transactional workloads. The ST3146807FC is engineered to minimize latency and maximize throughput, ensuring that enterprises can access critical data swiftly and efficiently. Additionally, its rugged construction is designed to withstand the demands of continuous operation, providing peace of mind for businesses with strict uptime requirements.

Lastly, the ST336607FC has a substantial storage capacity of 300GB and shares the 15,000 RPM operational speed that characterizes this high-performance line. With a similar 8GB cache as the ST3146807FC, it offers excellent performance for read-intensive and write-heavy applications. The ST336607FC is also designed with enhanced thermal management features, supporting cooler operations in densely packed server environments. This model is particularly suited for applications such as data warehousing and online transaction processing, where speed and reliability are paramount.

Each of these drives utilizes advanced technologies like Native Command Queuing (NCQ), which optimizes the order of read and write requests. These features, combined with Seagate's reputation for durability and performance, make the ST373307FC, ST3146807FC, and ST336607FC excellent choices for enterprise applications requiring high-speed data access and exceptional reliability. In environments where data integrity and uptime are critical, these drives provide the robust performance necessary to meet demanding storage needs.

Seagate ST373307FC, ST3146807FC Cheetah 10K.6 FC Product Manual, Rev. B ST336607FC, Temperature

Models: ST336607FC ST373307FC ST3146807FC