User manual QUANTUM SCALAR INTELLIGENT LIBRARIES SCSI REFERENCE GUIDE 03-2010

[. . . ] SCSI Reference Guide SCSI Reference Guide SCSI Reference Guide Quantum Scalar Intelligent Libraries Scalar Series 6-00423-09 Scalar® Intelligent Libraries SCSI Reference Guide, 6-00423-09, Ver. Quantum Corporation provides this publication "as is" without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability or fitness for a particular purpose. Quantum Corporation may revise this publication from time to time without notice. COPYRIGHT STATEMENT Copyright 2010 by Quantum Corporation. [. . . ] A value of 0 is returned to indicate that there is no connect time limit. Maximum Burst Size ­ This field indicates the maximum amount of data that will be transferred during a single data transfer operation. The value is expressed in increments of 512 bytes. A value of 4 is returned, indicating a maximum burst size of 2048 bytes. Enable Modify Data Pointers (EMDP) ­ This field indicates whether data transfers are allowed to be reordered. A value of 1 is returned to indicate that data transfers can be re-ordered. Fair Arbitration ­ This field indicates whether fair or unfair arbitration is used when requesting an interconnect tenancy. A value of 000b is returned to indicate that the various fairness algorithms may not be used. Disconnect Immediate (DIMM) ­ A value of 0 is returned to indicate that data may be transferred for a command during the same interconnect tenancy in which the command was received. Data Transfer Disconnect Control (DTDC) ­ A value of 000b is returned to indicate that data transfer disconnect control is not used. First Burst Size ­ This field indicates the maximum amount of data that may be transferred along with a command. A value of 0 is returned to indicate that there is no first burst size limit. Fibre Channel Logical Unit Control Page (18h) The Fibre Channel Logical Unit Control mode page reports logical unit behavior for the Fibre Channel Protocol. This page is not available on the SCSI interface. Table 38 Bit Byte 0 1 2 3 4 5 6 7 Reserved Reserved Reserved Reserved Reserved Reserved Fibre Channel Logical Unit Control Page (18h) 7 PS 6 Rsvd 5 4 3 2 1 0 Page Code (18h) Parameter List Length = 06h Protocol Identifier (0h) EPDC Parameters Savable (PS) - This page is not savable, and this field is set to zero. Page Code - This field identifies the Fibre Channel Logical Unit Control mode page and returns 18h. Parameter List Length - This field is set to 06h. Protocol Identifier ­ This field returns 0 to indicate the Fibre Channel protocol. Enable Precise Delivery Checking (EPDC) ­ This field returns 0 to indicate that the Fibre Channel Command Reference Number is not checked to verify that command packets are received in order. Scalar Intelligent Libraries SCSI Reference Guide 39 Fibre Channel Port Control Page (19h) The Fibre Channel Port Control mode page reports port behavior for the Fibre Channel Protocol. This mode page is not available on the SCSI interface. This mode page is only supported by devices at LUN 0. Table 39 Bit Byte 0 1 2 3 4 5 6 7 Reserved DTFD Reserved PLPB DDIS DLM RHA Fibre Channel Port Control Page (19h) 7 PS 6 Rsvd 5 4 3 2 1 0 Page Code (19h) Parameter List Length = 06h Protocol Identifier (0h) ALWI DTIPE DTOLI Reserved Reserved RR_TOV Units Resource Recovery Time-out Value (RR_TOV) Parameters Savable (PS) - This page is not savable, and this field is set to zero. Page Code - This field identifies the Fibre Channel Port Control mode page and returns 19h. [. . . ] Send Action Code ­ This field must be set to 5h to indicate translate and search primary volume tags and ignore sequence numbers. Parameter List Length ­ This field is either set to 0 to indicate that no parameter data is sent, or 28h (40) to indicate a Volume Identification Template is sent. A value of 0 is not considered an error. Volume Identification Template Parameter The Volume Identification Template parameter is shown in the following table. Table 79 Volume Identification Template Parameter Bit Byte 0 Volume Identification Template 31 32 Reserved 39 Volume Identification Template ­ This field specifies the template to apply for the search. [. . . ]