Inquiry data, Mode Sense data | Seagate ES.2 FC, ST31000640FC

9.3.1Inquiry data

Table 15 lists the Inquiry command data that the drive should return to the initiator per the format given in the Fibre Channel Interface Manual.

Table 15:	Barracuda ES.2 FC inquiry data

Bytes	Data (hex)

0-15	00	00	xx**	12	8B	00	PP	02	53	45	41	47	41	54	45	20	Vendor ID

16-31	[53	54	33	31	30	30	30	36	34	40	47	43]1	20	20	20	20	Product ID
32-47	R#	R#	R#	R#	S#	S#	S#	S#	S#	S#	S#	S#	00	00	00	00

48-63	00	00	00	00	00	00	00	00	00	00	00	00	00	00	00	00

64-79	00	00	00	00	00	00	00	00	00	00	00	00	00	00	00	00

80-95	00	00	00	00	00	00	00	00	00	00	00	00	00	00	00	00

96-111	00	43	6F	70	79	72	69	67	68	74	20	28	63	29	20	32*	*Copyright

112-127	30*	30*	38*	20	53	65	61	67	61	74	65	20	41	6C	6C	20	notice

128-143	72	69	67	68	74	73	20	72	65	73	65	72	76	65	64	20

*Copyright year (changes with actual year).

**SCSI Revision support. Refer to the appropiate SPC release documentation for definitions.

PP50 = Inquiry data for an Inquiry command received on Port A. 70 = Inquiry data for an Inquiry command received on Port B.

R#	Four ASCII digits representing the last four digits of the product firmware release number.
S#	Eight ASCII digits representing the eight digits of the product serial number.
[ ]	Bytes 16 through 26 reflect model of drive. The table above shows the hex values for model ST31000640FC.

9.3.2Mode Sense data

The Mode Sense command provides a way for the drive to report its operating parameters to the initiator. The drive maintains four sets of mode parameters:

1.Default values

Default values are hard-coded in the drive firmware stored in flash E-PROM (nonvolatile memory) on the drive’s PCB. These default values can be changed only by downloading a complete set of new firmware into the flash E-PROM. An initiator can request and receive from the drive a list of default values and use those in a Mode Select command to set up new current and saved values, where the values are change- able.

2.Saved values

Saved values are stored on the drive’s media using a Mode Select command. Only parameter values that are allowed to be changed can be changed by this method. Parameters in the saved values list that are not changeable by the Mode Select command get their values from default values storage.

When power is applied to the drive, it takes saved values from the media and stores them as current val- ues in volatile memory. It is not possible to change the current values (or the saved values) with a Mode Select command before the drive achieves operating speed and is “ready.” An attempt to do so results in a “Check Condition” status.

On drives requiring unique saved values, the required unique saved values are stored into the saved val- ues storage location on the media prior to shipping the drive. Some drives may have unique firmware with unique default values also.

On standard OEM drives, the saved values are taken from the default values list and stored into the saved values storage location on the media prior to shipping.

52	Barracuda ES.2 FC Product Manual, Rev. B

ST31000640FC, ES.2 FC specifications

The Seagate ES.2 FC, model ST31000640FC, is a high-performance hard drive designed specifically for enterprise environments. This drive is engineered to provide reliable and efficient data storage, catering to the demands of critical business applications, data centers, and server infrastructures.

One of the standout features of the ST31000640FC is its large storage capacity. With a 1TB capacity, it offers ample space for storing vast amounts of data, making it an excellent choice for businesses that require extensive storage solutions. This capacity enables the drive to support extensive databases, applications, and virtualized environments without compromising performance.

The Seagate ES.2 FC utilizes Fibre Channel (FC) interface technology, which is known for its high-speed data transfer capabilities. Operating at 4 Gbps, this interface facilitates faster communication between the drive and the server, significantly enhancing overall system performance. The Fibre Channel technology also improves data integrity through its ability to manage large amounts of data traffic efficiently.

In terms of performance specifications, the ST31000640FC boasts a rotational speed of 7200 RPM and a sustained data transfer rate that offers quick access to information. Additionally, it features an advanced caching mechanism that optimizes read and write operations, ensuring rapid data retrieval and improved application responsiveness.

The drive's advanced error recovery and data protection mechanisms, such as the Seagate PowerTrim technology, work to minimize downtime and data loss. This is particularly crucial for enterprise applications that demand high availability and reliability. PowerTrim intelligently manages the drive’s internal resources to enhance performance and durability.

Another essential characteristic of the Seagate ES.2 FC is its enterprise-grade reliability. It boasts a mean time between failures (MTBF) rating of 1.2 million hours, indicating its robustness for continuous operation in demanding environments. Furthermore, it is designed to operate in a range of temperatures, ensuring consistent performance across various operational conditions.

Lastly, the Seagate ES.2 FC incorporates vibration tolerance and advanced acoustic performance features, which help to reduce noise and ensure quieter operation in data center environments. This makes it an attractive option for enterprises looking to optimize their infrastructure while minimizing disturbances.

In summary, the Seagate ES.2 FC, ST31000640FC hard drive is an excellent choice for enterprises seeking a balance of large storage capacity, high-speed performance, and reliability in a Fibre Channel environment. With its array of technologies and robust characteristics, it meets the rigorous demands of modern business storage needs.

9.3.1Inquiry data

Barracuda ES.2 FC inquiry data

Bytes

Data (hex)

9.3.2Mode Sense data

Barracuda ES.2 FC Product Manual, Rev. B

ST31000640FC, ES.2 FC specifications