User's Guide
Table Of Contents
- SCSI Command Support
- SCSI Commands
- Initialize Element Status - 07h
- Initialize Element Status With Range - E7h
- Inquiry - 12h
- Log Sense - 4Dh
- Mode Select (6) - 15h
- Mode Select (10) - 55h
- Mode Sense (6) - 1Ah
- Mode Sense (10) - 5Ah
- Mode Pages
- Move Medium – A5h
- Persistent Reserve In – 5Eh
- Persistent Reserve Out – 5Fh
- Position to Element – 2Bh
- Prevent Allow Medium Removal – 1Eh
- Read Buffer – 3Ch
- Read Element Status – B8h
- Release Element (6) – 17h
- Release Element (10) – 57h
- Report LUNS – A0h
- Request Sense – 03h
- Request Volume Element Address - B5h
- Reserve Element (6) - 16h
- Reserve Element (10) - 56h
- Send Diagnostic - 1Dh
- Send Volume Tag - B6h
- Test Unit Ready (00h)
- Write Buffer (3Bh)
18 SCSI Commands
Multi Port (MultiP) – Returned as 0 if the device providing the medium changer interface supports a single
port; returned as 1 if the device providing the medium changer interface supports 2 or more ports.
Media Changer (MChngr) – This field returns a 0, indicating it is not an attached media changer device.
Wide SCSI Address 16 (Addr16) – Returned as 1, indicating 16-bit wide SCSI addresses are supported
(applies to parallel SCSI only).
Relative Address (RelAdr) – Returned as 0, indicating relative addressing is not supported.
Wide Bus 16 (Wbus16) – Returned as 1, indicating 16 bit transfers are supported (applies to parallel SCSI
only).
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
“203G”.
The remaining fields are only returned for media changer device 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 device 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).