User manual TANDBERG SLR7-140 PROGRAMMER

[. . . ] TANDBERG SLR Tandberg SLR7, SLR50, SLR60, SLR75, SLR100, SLR140 SCSI INTERFACE FUNCTIONAL SPECIFICATION TANDBERG DATA ASA P. O. Box 134 Kjelsås N-0411 OSLO, NORWAY Phone + 47 22 18 90 90 Telefax + 47 22 18 95 50 © Tandberg Data ASA Part No. October 43 07 43 ­ 13 2003 Related publications available from Tandberg Data ASA: Part No. 43 04 44 - 11 Title Tandberg SLR7, SLR50, SLR60, SLR75, SLR100, SLR140 Reference Manual This publication may describe designs for which patents are granted or pending. [. . . ] The counter is implemented only to promote ANSI SCSI-2 compatibility. LP 13-11 Tandberg SLR Product Line SCSI Functional Specifications Tandberg Data Log Sense Total Bytes Written Log Parameters BYTE n+0 n+1 n+2 n+3 n+4 n+11 DU DS TSD ETC TMC R LP Parameter Length = 08h Total Bytes Written Counter BIT 7 6 5 4 3 2 1 0 Parameter Code = 0005h Table 13-11: Total Bytes Written Parameters Parameter Code DU The Parameter Code is set to 0005h. A Disable Update (DU) bit set to 0 indicates that the Drive is free to update the counter. A DU bit set to 1 indicates that the Drive shall not update the counter except in response to a LOG SELECT command that specifies a new value for the counter. The initiator may use the LOG SELECT command to set or clear the DU bit. The Drive sets the DU bit to 1 when the counter reaches its maximum value (FFFFFFFFFFFFFFFFh). DS The Disable Save (DS) bit is set to 1 to indicate that the Drive does not support saving of this log parameter. (Note: This bit can not be changed by the initiator) TSD The Target Save Disable (TSD) bit is set to 1 to indicate that the Drive does not provide any Drivedefined method for saving this log parameter. (Note: This bit can not be changed by the initiator) ETC An Enable Threshold Comparison (ETC) bit indicates whether comparison to the threshold value is performed or not. See the LOG SELECT command for further description. TMC The Threshold Met Criteria (TMC) field is valid only if ETC bit is 1 and it selects one of four possible Threshold Met Criteria. See the LOG SELECT command for further description. LP Parameter Length Total Bytes Written Counter The List Parameters (LP) bit is set to 0 to indicate that the parameter is a data counter. This field is set to 08h to indicate that the counter is 8 bytes wide. This counter counts the bytes in physical blocks, written to the media, during write operations. The increment(s) are performed each time capstan motor stops. (The physical blocks are data blocks, control blocks, filler blocks, ECC blocks and tape marks. ) 13-12 Tandberg SLR Product Line SCSI Functional Specifications Tandberg Data Log Sense Total Uncorrected Write Errors Log Parameters BYTE n+0 n+1 n+2 n+3 n+4 n+7 DU DS TSD ETC TMC R LP Parameter Length = 04h Uncorrectable Write Errors Counter BIT 7 6 5 4 3 2 1 0 Parameter Code = 0006h Table 13-12: Total Uncorrected Write Errors Log Parameters Parameter Code DU The Parameter Code is set to 0006h. A Disable Update (DU) bit set to 0 indicates that the Drive is free to update the counter. A DU bit set to 1 indicates that the Drive shall not update the counter except in response to a LOG SELECT command that specifies a new value for the counter. The initiator may use the LOG SELECT command to set or clear the DU bit. The Drive will set the DU bit to 1 when the counter reaches its maximum value (FFFFFFFFh). DS The Disable Save (DS) bit is set to 1 to indicate that the Drive does not support saving of this log parameter. (Note: This bit can not be changed by the initiator) TSD The Target Save Disable (TSD) bit is set to 1 to indicate that the Drive does not provide any Drivedefined method for saving this log parameter. [. . . ] The Valid (VADD) and End Of Media (EOM) bits will be set to one. The Information Bytes in the sense data list will be set to the difference between the requested number of tapemarks and the actual number of tapemarks transferred to the Drive's data buffer. This error condition has priority over the Logical Early Warning error condition. Additional WRITE FILEMARKS commands issued after an endof-partition error has occurred will be terminated immediately with a CHECK CONDITION (no tapemarks will be transferred). [. . . ]