Inquiry data, Mode Sense data | Seagate ST2000NM0001, ST1000NM0001

12.3.1Inquiry data

Table 9 lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual.

Table 9:	Constellation ES.1 inquiry data

Bytes	Data (hex)


0-15	00	00	xx**	12	8B	00	30	02	53	45	41	47	41	54	45	20	Vendor ID

16-31	[53	54	32	30	30	30	4E	4D	30	30	30	31}	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*	31*	30*	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. See the appropriate SPC release documentation for definitions. PP 10 = Inquiry data for an Inquiry command received on Port A.

30 = 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 ST2000NM0001.
	Refer to the values below for the values of bytes 16 through 26 of your particular model:
	ST2000NM0001	53	54	32	30	30	30	4E	4D	30	30	30	31
	ST2000NM0021	53	54	32	30	30	30	4E	4D	30	30	32	31
	ST2000NM0041	53	54	32	30	30	30	4E	4D	30	30	34	31
	ST1000NM0001	53	54	31	30	30	30	4E	4D	30	30	30	31
	ST1000NM0021	53	54	31	30	30	30	4E	4D	30	30	32	31
	ST1000NM0041	53	54	31	30	30	30	4E	4D	30	30	34	31
	ST500NM0001	53	54	35	30	30	4E	4D	30	30	30	31
	ST500NM0021	53	54	35	35	30	4E	4D	30	30	32	31
	ST500NM0041	53	54	35	35	30	4E	4D	30	30	34	31

12.3.2Mode 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

60	Constellation ES.1 SAS Product Manual, Rev. E

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ST2000NM0001, ST1000NM0041, ST500NM0001, ST2000NM0021, ST1000NM0021 specifications

Seagate is a renowned leader in data storage solutions, offering a wide array of hard disk drives (HDDs) suitable for various applications. Among their product lineup, the Seagate ST2000NM0041, ST500NM0021, ST500NM0041, ST1000NM0001, and ST1000NM0021 stand out as reliable options tailored for enterprise environments and general storage needs.

The Seagate ST2000NM0041 is a 2TB 7200 RPM drive designed for high-performance workloads in data centers. One of its key features is the use of the SATA III interface, providing data transfer speeds of up to 6 Gbps, ensuring quick access to data. This model supports advanced error recovery controls and features enhanced power management capabilities, which contribute to its reliable performance and energy efficiency.

Next, the ST500NM0021 and ST500NM0041 are both 500GB drives that cater to different consumer needs. The ST500NM0021 is a 5400 RPM drive, typically used in scenarios where lower power consumption is vital, such as in compact systems or external storage configurations. Its efficient design enables quieter operation, making it ideal for environments that require minimal noise. Conversely, the ST500NM0041 operates at a speed of 7200 RPM, making it suitable for more demanding applications that require swift read and write speeds. Both models utilize Serial ATA for connectivity, ensuring compatibility with a wide range of systems.

The ST1000NM0001 and ST1000NM0021 are 1TB drives that provide versatility across different platforms. Similar to their 500GB counterparts, the ST1000NM0001 features a 7200 RPM speed, optimizing performance for applications requiring faster data processing. In contrast, the ST1000NM0021 operates at 5400 RPM, designed for users prioritizing energy efficiency over speed, like in desktop and external storage solutions. Each of these drives supports advanced technologies such as Native Command Queuing (NCQ), which enhances performance by allowing multiple commands to be executed simultaneously.

Overall, the Seagate ST series hard drives offer flexible storage options for a variety of applications. With their robust features, including varied RPM speeds, power management, and compatibility with SATA connections, these drives cater to the needs of both consumer and enterprise markets, establishing Seagate as a trusted provider in the storage arena.

Seagate ST2000NM0001, ST1000NM0001 Inquiry data, Constellation ES.1 inquiry data, Mode Sense data

Models: ST2000NM0001 ST1000NM0041 ST500NM0001 ST2000NM0021 ST1000NM0021 ST1000NM0001 ST500NM0041 ST500NM0021 ST2000NM0041

12.3.1Inquiry data

Constellation ES.1 inquiry data

Bytes

Data (hex)

12.3.2Mode Sense data

Constellation ES.1 SAS Product Manual, Rev. E

ST2000NM0001, ST1000NM0041, ST500NM0001, ST2000NM0021, ST1000NM0021 specifications