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StorageNet Fibre Channel Switch 4000
SES (SCSI-3 Enclosure Services)
User Guide
8946121402
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StorageNet Fibre Channel Switch 4000 SES (SCSI-3 Enclosure Services) User Guide 8946121402
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Revision History Tab Level/Date Description 01 (08/98) Initial release. 02 (03/99) Manual release corresponding to Release 1.6a. The U.S. Department of Commerce restricts the distribution of technical information contained in this document when exported outside the U.S. Therefore, careful attention should be given to compliance with all applicable U.S. Export Laws if any part of this document is to be exported. © 1999 Storage Technology Corporation, Louisville, Co. All rights reserved. Printed i
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About This Document Introduction Use this guide for monitoring, configuring, and maintaining a StorageNet Fibre Channel Switch 4000 through SCSI-3 Enclosure Services (SES). You should be knowledgeable about networking in general, routing and bridging in particular. A clearly defined network and security plan is necessary. Your security plan should assess the possible risks to your network and define access policies to deal with those risks. How This Guide is Organized This guide is divided into the
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Notice to the Reader The material contained in this publication is for informational purposes only and is subject to change without notice. StorageTek is not responsible for the use of any product options or features not described in this publication, and assumes no responsibility for any errors that may appear in this publication. Refer to the revision history (at the beginning of this document) to determine the revision level of this publication. StorageTek does not by publication of the descr
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Table of Contents Chapter 1 Product Overview Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 SES Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Chapter 2 SES Concepts Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1 SES Functional Model
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Chapter 4 Troubleshooting Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 License Reject . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 CHECK CONDITION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 Invalid Field Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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List of Figures Figure 1-1 SES Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2 Figure 2-1 SES Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1 Figure 2-2 SES Functional Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 8946121402 vii
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List of Tables Table 1-1 Example LUN Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2 Table 2-1 Format of LUN recognized by SESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 Table 2-2 LUN Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 Table 3-1 Constructs, Commands and Diagnostic Pages . . . . . . . . . . . . . . . . . . . . .3-1 Table 3-2 FCP Information Unit Descriptions . . . .
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Chapter 1 Product Overview Introduction This chapter describes StorageTek’s implementation of SES (SCSI-3 Enclosure Services) on the StorageNet Fibre Channel Switch 4000. SES implementation in a SCSI-3-based Host Adapter is up to the adapter manufacturer and StorageTek cannot determine their implementation. Therefore, the focus of this guide is to discuss StorageTek’s implementation of SES within the Fabric. Note: Currently, the SES standard is in DRAFT status and is subject to change. See “Refe
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SES Management Figure 1-1 SES Overview LUN addressing within the Fabric can be non-sequential because it is based on the switch’s Domain_ID. Table 1-1 shows the sample LUN mapping used with Figure 1-1. Table 1-1 Example LUN Mapping Domain ID Unique LUN Value (in Hex) 5 00000000 00000000 (Note that Domain ID 5 is used for both LUN 0 and 5) 2 01020000 00000000 5 01050000 00000000 6 01060000 00000000 9 01090000 00000000 10 010A0000 00000000 Figure 1-1 shows that the switch in the lower left hand
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SES Management Therefore, if there are 5 switches in the Fabric SES reports 6 LUNs, one LUN value for each switch and LUN0 for the local client connection. Other SCSI-3 enclosures can also run SES outside the Fabric, such as JBODs, RAID-5 arrays, SCSI-3 hard drives, and SCSI-3 tape drives. These devices are identified by their Fabric and SCSI addresses, and are assigned LUNs using standard SCSI-3 host adapter LUN addressing. Note: It is not this guide’s intent to describe the environment outside
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SES Management 1-4 8946121402
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Chapter 2 SES Concepts Introduction This chapter uses generic terms to describe enclosure services and specific SES implementation. SES instances can be distributed inside and outside of the Fabric to any enclosure capable of supporting enclosure services through an SES device. SES is distributed transparently throughout the Fabric, with an instance of a distributed SES Device (SESD) on each switch as shown in Figure 2-1. Figure 2-1 SES Distribution SES Functional Model Each instance may be acce
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SES Functional Model Figure 2-2 SES Functional Model SES Application SES Request SES Device Client SES Response FCP Command FCP Port FCP _Port FCP Response Request Sequence FC-PH FC-PH Response Sequence At the Fibre Channel level, each SESD is accessible through the Fibre Channel well known address,FFFFFAh (Management Server). At the SCSI-3 level, it is associated with a LUN. An SES Application Client can refer to any distributed SESD within the Fabric using its LUN. A LUN value of 0 is always
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Access to the Enclosure Services Process An SES Application Client may easily find the LUN values of all distributed SESDs inside the Fabric by using the Report LUNs command. See the “Report LUNs” section in Chapter 3 for more information. Access to the Enclosure Services Process An application client can monitor all enclosures capable of processing the enclosure services command set with SES instances distributed throughout a Storage Area Network (SAN). Enclosure services can monitor both device
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Indicators and Control Management 2-4 8946121402
