Seagate ST9300553SS Savvio 15K.2 SAS Product Manual - Page 61

12.3.1 Inquiry data Table 8 lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual. Table 8: Bytes 0-15 16-31 32-47 48-63 64-79 80-95 96-111 112-127 128-143 Savvio inquiry data Data (hex) 00 00 03** 12 8B 00 PP 0A 53 45 41 [53 54 39 31 34 36 38 35 52 53 53 R# R# R# R# S# S# S# S# S# S# S# 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 6F 70 79 72 69 67 68 74 20 30* 30* 36* 20 53 65 61 67 61 74 65 72 69 67 68 74 73 20 72 65 73 65 47 41 54 45 20 Vendor ID 20 20 20 20 20 Product ID S# 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 28 63 29 20 32* *Copyright 20 41 6C 6C 20 notice 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 ST9146852SS. Refer to the values below for the values of bytes 16 through 26 of your particular model: ST9146752SS 53 54 39 31 34 36 37 35 32 53 53 ST9146652SS 53 54 39 31 34 36 36 35 32 53 53 ST973452SS 53 54 39 37 33 34 35 32 53 53 ST973352SS 53 54 39 37 33 33 35 32 53 53 ST973252SS 53 54 39 37 33 32 35 32 53 53 12.3.2 Mode 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 changeable. 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. Savvio 15K.2 SAS Product Manual, Rev. F 53