scsi interface specification - Plasmon

DRIVE COMMAND SET ACCESS EVENT LOG (ECH)The log index is used to determine the last entry into the log as each log when filled will wrap back to thetop and overwrite existing entries.Each CDE LOG entry for a system CDE is a 2 byte value consisting of a CDE reference number(designated by an ’0’ in the most significant nibble).Each CDE log entry for an exception CDE is a 10 byte entry with a 2 byte entry containing the vector offsetfollowed by 4 bytes containing the PC address, followed by 4 bytes containing the fault address.When multiple CDEs occur before the drive can report back to the host, the CDE log entries will be asfollows:the first CDE is logged as normalall subsequent CDEs will logged with an ’8’ as the most significant nibbleEach DIAG FAIL LOG entry is a 2 byte value consisting of a failed diagnostic test number in hex.Each SENSE LOG entry is 9 bytes of SCSI data information in the following order:• OPCODE BYTETable 19. 6000 Log Mode Logs - Page B: Failure Analysis Log (Size 1566) (Continued)BYTE (DECIMAL) DESCRIPTION BYTE (HEX)624 - 631 Current RTPM Media Serial Number 270 - 277632 - 633 Side A Reloc Log Index 278 - 279634 - 783 Side A RELOC LOG 27A - 30F784 - 785 Side B Reloc Log Index 310 - 311786 - 935 Side B RELOC LOG 312 - 3A7936 - 939 Undefined 3A8 - 3AB940 - 1205 CDE SCSI Activity Log 3AC - 4B51206 - 1471 SCSI Bus Reset SALOG 4B6 - 5BF1472 - 1517 Side A Dynamic RELOC Log 5C0 - 5ED1518 - 1563 Side B Dynamic RELOC Log 5EE - 61B1564 - 1565 Init DPC Executions 61C - 61D• Sense Data Bytes 2, 12, 13, and 18,• Media Serial number - 4 bytes.Only Sense Keys of 03, 04, or 0B will be recorded in the SENSE LOG as well as RCBM Faults whichare identified by a Sense Data Byte 18 value in the range of 0X4D through 0X64.For SCSI failures with Sense Key data values of 03, 04, or 0B the following format applies to eachSENSE LOG entry:Byte 1: OPCODE ByteByte 2: Sense Data Byte 2Byte 3: Sense Data Byte 12Byte 4: Sense Data Byte 13Byte 5: Sense Data Byte 18Bytes 6-9: Media Serial NumberPLASMON L M S - LD 6100/LF 6600/LF 6602 SCSI INTERFACE SPECIFICATIONPage 48