User's Guide

18 SCSI Commands
Synchronous Transfer (Sync) – Returned as 1, indicating synchronous transfers are supported (applies
to parallel SCSI only).
Linked Commands (Linked) – Returned as 0, indicating linked commands are not supported.
Command Queuing (CmdQue) – For Fibre Channel, this is returned as 1, indicating command queuing is
supported. For SCSI and SAS, this is returned as 0, indicating no command queuing is supported.
Soft Reset (SftRe) – Returned as 0, indicating a soft reset is not supported.
Vendor Identification – Returned as one of the following (space filled to 8 bytes):
• “ADIC “
• "QUANTUM “
Product Identification – Depending upon the library type, returned as one of the following (space filled to
16 bytes):
• “Scalar 24 “
• “Scalar 100 “
• "Scalar 1000 “
• "Scalar i2000 “
• "Scalar 10K “
• "Pathlight VX “
• "Scalar i500 “
• "Scalar i40-i80 “
• "Scalar i6000 “
Firmware Revision Level – Returned as the ASCII representation of the revision level, such as “100A” or
“203A”.
The remaining fields are only returned for Media Changer logical units.
Full Firmware Revision Level – Same as the firmware revision level, but extended to include the build
number (if available).
Bar Code (BarC) – Returned as 1, indicating a bar code scanner or imaging device is installed. Also
returned in byte 6 above.
Clocking – This field is only returned for Media Changer logical units controlled via parallel SCSI; otherwise,
this field is reserved. This field does not apply to asynchronous transfers and is defined as:
• 00b – Indicates the target port supports only single transition (one transfer per clock cycle).
• 01b – Indicates the target port supports only double transition (two transfers per clock cycle; 16-bit
only).
• 10b – Reserved.
• 11b – Indicates the target port supports single transition and double transition.
QAS – This field is only returned for Media Changer logical units controlled via parallel SCSI; otherwise, this
field is reserved. A quick arbitration and selection supported (QAS) bit of one indicates that the target port
supports quick arbitration and selection. A value of zero indicates that the target port does not support quick
arbitration and selection.