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)
Quantum Scalar Intelligent Libraries SCSI Reference Guide Guide 23
Note: When the library is reported on LUN 1 by a drive, then NAA port identifier information (type 3h) is not
reported by the media changer device and application clients should use the information reported by the
device at LUN 0. When the media changer device is reported on LUN 0 (i.e., NPIV is enabled in support of
control path failover configurations) then the drive hosting the library control path adds the NAA port
identifiers.
Media Changer Identification Descriptor
Media changer logical units report only a single identifier. They will report the same identifier on either SCSI
or Fibre Channel.
Controller Device Identification Descriptors
On the parallel SCSI and SAS interface, the controller device logical unit will return the same identification
descriptor as the media changer devices, as shown in Table 15
.
On the Fibre Channel interface, the controller device logical unit will return three different identification
descriptors as shown in Table 16
, Table 17, and Table 19.
The first two descriptors describe the World Wide Node Name and World Wide Port Name.
Table 15 Media Changer Identification Descriptor
Bit
Byte
76543210
0 Protocol Identifier Code Set = 2h
1 PIV Rsvd Association = 0h Identifier Type= 1h
2 Reserved
3 Identifier Length = 20h (32)
4
11
Vendor Identification
(as reported in the Standard Inquiry response)
12
35
Serial Number
(as reported in the Unit Serial Number page without Vendor Identification prefix)
Table 16 Controller Device Node Identification Descriptor
Bit
Byte
76543210
0 Protocol Identifier Code Set = 1h
1 PIV Rsvd Association = 0h Identifier Type= 3h
2 Reserved
3 Identifier Length = 08h
4
:
11
World Wide Node Name (WWNN)