User manual FREECOM AIT-SDX570

[. . . ] SDX-570V/P SDX-570V/RP 5. 25 Model Product Specification Manual Version 1. 0 Aug. NOTE: This Product Specification Manual is applicable for AIT-2 Turbo Serial ATA I/F drive. Notice This document contains proprietary information which is protected by copyright. No part of this document may be photocopied, reproduced or translated to another language without prior written consent of Sony. The information contained in this document is subject to change without notice. [. . . ] Note: 00hDefault: instructs the drive to use its default or only density. Table 7-31: Sequential-Access Density Codes Page Code 00h 38h 7Fh Description Default Format AIT-E Turbo Format No change from previous density Number of Blocks: A MODE SENSE field which will be returned as ZERO, indicating that all of the remaining logical blocks on the media will have the medium characteristics specified by the block descriptor, or until a subsequent MODE SELECT command changes those parameters. This field must be set to ZERO on a MODE SELECT otherwise a CHECK CONDITION status will be returned with an ILLEGAL REQUEST sense key. Block length: The Block Length field specifies the length in bytes of each logical block transferred over the bus. Any other value must be on even boundary and indicates the fixed block size. This value indicates the number of bytes per block that the drive must handshake over the bus. This establishes block length such that the transfer length for read, write, and verify type commands will be a block count, not a byte count. Note: It is value of this field together with the Fixed Bit Field in the READ, or WRITE commands that determines whether the drive is in Fixed or Variable block mode. The default fixed block size is 512 bytes. 7-24 SONY AIT-2 Turbo drive SDX-570V series Ver. 1. 0 MODE SENSE 7. ATAPI Packet Command Specification 7. 8. Byte 0 1 2 3 4 6 7 8 9 10 11 MODE SENSE 1Ah Bit 7 6 5 4 3 2 1 0 Operation Code (1Ah) DBD Page Code Allocation Length Reserved Reserved Reserved Reserved Reserved Reserved Reserved 0(PC) (MSB) Reserved (LSB) The MODE SENSE command provides a means for a Device to report parameters. A Disable Block Descriptors (DBD) bit of zero indicates that the Device shall return one block descriptor in the returned MODE SENSE data. A DBD bit of one specifies that the Device shall not return any block descriptors in the returned MODE SENSE data. If a MODE SENSE command is attempted with a page code value not implemented, the Device shall return "Check Condition" status and shall set the Sense Key to ILLEGAL REQUEST and the Additional Sense Code to INVALID FIELD IN CDB. A page code of 3Fh indicates that all pages implemented by the Device shall be returned. Devices that implement more than 255 bytes of mode page parameter data and block descriptors shall return "Check Condition" status to a MODE SENSE request of 3Fh in the page code field. The Sense Key shall be set to ILLEGAL REQUEST and the Additional Sense Code shall be set to INVALID FIELD IN CDB. The Drive returns the current parameter values for the specified page code. The default values if a MODE SELECT command has not been executed since the last power-on, hard RESET condition, or Device reset, or not ready to ready transition. Table 7-32: Supported Mode Sense Page Codes Page Code 00h 02h 0Fh 10h 11h 1Ch 31h 2Ah 3Fh Description Standard Sense Disconnect-Reconnect Data Compression Page Device Configuration Medium Partition Page Informational Exception Control AIT Device Configuration Capabilities and Mechanical Status Returns all pages (valid only for the MODE SENSE command) Parameter List Length 0Ch 0Ch+10h=1Ch 0Ch+10h=1Ch 0Ch+10h=1Ch 0Ch+0Ch=18h (when AIT bit is ZERO) 0Ch+0Ch=18h 0C+0A=16h 0Ch+14h=20h 0Ch+10h+10h+10h+0Ch+0Ch+0Ah+14h=72h SONY AIT-2 Turbo drive SDX-570V series Ver. 1. 0 7-25 7. ATAPI Packet Command Specification MODE SENSE Allocation Length: The Allocation Length specifies the number of bytes that the HOST has allocated for returned MODE SENSE data. An Allocation Length of ZERO means that the drive will return no MODE SENSE data. Any other value indicates the maximum number of bytes that can be transferred. The drive terminates the data transfer when the Allocation Length bytes have been transferred or when all available MODE SENSE data has been transferred, whichever is less. The Allocation Length must fall on header or block descriptor boundaries. [. . . ] NLR: 0 - Drive Log will be initialized before the test 1 - Drive Log will not be initialized Group Count: This defines the number of groups to be written to or read from the tape. 0 - Write until EOT or Read until EOD/EOM >0 - Write until count is exhausted or EOM, Read until count is exhausted or EOD/EOM. The Diagnostic result for the Error Rate Test will be as shown in the table below. Table 8-7: Error Rate Test Results Byte 0 1 2 3 4 Bit 7 Reset Error (MSB) 6 Tine ReSync 5 Reserved Error Code Actual Group Count (LSB) Diagnostic Test Number (02h) 4 3 2 Error Set 1 0 This test will result in a loss of logical tape position and therefore a load should be sent before the drive is used for any normal reads or writes. Read Data Exerciser (43h) Diagnostic Parameters The purpose of this test is to read AIT Format data for error rate testing. 8-8 SONY AIT-2 Turbo drive SDX-570V series Ver. Drive Diagnostics Table 8-8: Read Data Exerciser Parameters Byte 0 1 2 3 4 Bit 7 6 5 4 3 2 1 0 Diagnostic Test Number (43h) Loop Count (MSB) Number of Frames (LSB) Number of Frames: The drive will read the number of frames specified in this field. Table 8-9: Read Data Exerciser Result Bit Byte 0 1 2 3 4 Reset Error (MSB) Tine ReSync Reserved Error Code Number of loops executed (LSB) Diagnostic Test Number (43h) Error Set 7 6 5 4 3 2 1 0 The results message will contain the number of loops executed during the test. [. . . ]