StorageTek 4000, SCSI-3 FCP and SES Commands

FCP and SES Commands

3-4 8946121402

Table3-5 shows the FCP_STATUS ﬁeld format.

The reserved bits are set to 0 by the SESD. FCP_RESID_UNDER indicates that the FCP_RESID

ﬁeld is valid and contains the number of bytes expected to be transferred, but were not

transferred. See Table3-4. This bit is not used by SESD. FCP_RESID_OVER indicates that the

FCP_RESID ﬁeld is valid and contains the number of bytes that have been truncated because

the FCP_DL was not sufﬁcient. See Table3-3. This bit may be set by SESD.

FCP and SES Commands

Table3-6 shows the commands supported by SESD.

The value of the FCP_LUN ﬁeld in FCP_CMND speciﬁes the logical unit for the request in each

command. The value of FCP_DL ﬁeld in FCP_CMND speciﬁes whether there is any data

parameter to be transferred to the SESD. The value should be 0 for command 1, 2, 3, 4 and 6.

For command 5, the value may be 0 or the size of a diagnostic page whose page code is in the

range of 80h through 85h.

Table 3-5 FCP_STATUS Format

Byte Bit Deﬁnition

0 7 .. 0 Reserved

1 7 .. 0 Reserved

2

7 .. 4 Reser ved

3 FCP_RESID_UNDER

2 FCP_RESID_OVER

1 FCP_SNS_LEN_VALID

0 FCP_RSP_LEN_VALID

3 7 .. 0 SCSI status byte from the SCSI logical unit (not used)

Table 3-6 Supported Operation Codes

Command Operation Code

Inquiry 12h

Receive Diagnostics Results 1Ch

Report LUNs A0h

Request Sense 03h

Send Diagnostic 1Dh

Test Unit Ready 00h

Contents

Main Page Page Revision History About This Document How This Guide is Organized Reference Documents Notice to the Reader Customer Support Table of Contents Chapter 1 Product Overview Chapter 2 SES Concepts Chapter 3 SES Commands Page Page Page List of Tables Page Chapter 1 Product Overview SES Management Page Page Page Chapter 2 SES Concepts SES Functional Model Page Access to the Enclosure Services Process Access Through an Enclosure Services Device Indicators and Control Management Page Chapter 3 SES Commands Constructs, Commands and Diagnostic Pages FCP Constructs FCP Command Information Unit FCP Transfer Ready Information Unit FCP Data Information Unit FCP Response Information Unit FCP and SES Commands Switch Diagnostics Pages 3-6 8946121402 Switch Page SESD returns the response shown in Table3-10. 8946121402 3-7 n-64 Number_of_Sensors are valid, it contains the hex value of 0003h. Sensor Table Page SESD returns the response shown in Table3-12. Fabric Page 3-8 8946121402 Neighborhood Table Page SESD returns the response shown in Table3-13. Fibre Channel Port Table Page 8946121402 3-9 3-10 8946121402 Name Server Local Table Page i SESD returns the following response as shown in Table3-15. 8946121402 3-11 Inquiry m}{p 3-12 8946121402 If the page code is set to 00h, the SESD will return codes shown in Table3-19. If the page code is set to 80h, the SESD will return codes shown in Table3-20. the switch World_wide Name in ASCII string format Receive Diagnostic Results 3-14 8946121402 Report LUNs SENSE INFORMATION. The SESD reports the LUNs of associated switches with the format shown in Table3-24. Request Sense The SESD returns a sense key of NO SENSE and an additional sense code of NO ADDITIONAL Send Diagnostic Test Unit Ready Reject Chapter 4 Troubleshooting License Reject CHECK CONDITION Invalid Field Errors Page Appendix A Glossary Page Index Page Comment Sheet BUSINESS REPLY MAIL StorageTek Problem Reporting