HP Surestore 28/48-Slot with DLT7000 Digital Linear Tape SCSI-2 Drive and SCSI - Page 170
log sense command: tapealert, Table 2-104, Log Sense Format, TapeAlert Flags
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Library SCSI-3 Command Set Log Sense Command (4DH) Table 2-104 TapeAlert SCSI Log Sense Format This table can be accessed via the Log Sense Command (4DH) Table 2-102 on page 2-123 with page code 2EH. The TapeAlert interface to the library is via the SCSI bus, based on a new LOG SENSE page code 2EH that contains 64 one-byte alert flags. The specific conditions for any one flag to be set and cleared are device-specific. The format of the LOG SENSE page is as follows: Log Sense Format Byte 7 6 5 4 3 2 1 0 0 Page Code (2EH) 1 Reserved (0) 2 Page Length (01H) MSByte 3 Page Length (40H) LSByte TapeAlert Flags: 5n-1 Parameter Code (n) MSByte 5n Parameter Code (n) LSByte 5n+1 DU(0) DS(1) TSD(0) ETC(0) TMC(0) Rsvd(0) Res(0) LP(0) 5n+2 Parameter Length (1) 5n+3 Value of Flag (set when bit = 1) Each flag will be cleared to 0 in the following circumstances: • At drive power on • When the TapeAlert Log page is read • When specified corrective action has been taken (such as using a cleaning cartridge) • On SCSI bus reset or bus device reset message • On Log Select reset 2- 126 Chapter 2