Seagate ST3300657SS Cheetah 15K.7 FC Product Manual - Page 63

[3] Reference Mode Sense command 1Ah for mode pages supported. [4] Y = Yes. Command is supported. N = No. Command is not supported. A = Support is available on special request. 10.3.1 Inquiry data Table 17 lists the Inquiry command data that the drive should return to the initiator per the format given in the Fibre Channel Interface Manual. Table 17: Bytes 0-15 16-31 32-47 48-63 64-79 80-95 96-111 112-127 128-143 Cheetah 15K.7 FC inquiry data Data (hex) 00 00 xx** 12 8B 00 PP 02 53 45 41 47 41 [53 54 33 36 30 30 30 35 37 46 43]1 20 20 R# R# R# R# S# 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 00 00 00 00 00 00 00 43 6F 70 79 72 69 67 68 74 20 28 63 30* 30* 39* 20 53 65 61 67 61 74 65 20 41 72 69 67 68 74 73 20 72 65 73 65 72 76 54 45 20 Vendor ID 20 20 20 Product ID 00 00 00 00 00 00 00 00 00 00 00 00 29 20 32* *Copyright 6C 6C 20 notice 65 64 20 * Copyright year (changes with actual year). ** SCSI Revision support. Refer to the SPC release documentation for definitions. PP 50 = 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 18 through 26 reflect model of drive in hex format. 10.3.2 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. When power is applied to the drive, it takes saved values from the media and stores them as current values 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. Cheetah 15K.7 FC Product Manual, Rev. B 57