HP StorageWorks Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide (AA-RPHZF-TE, March 2004)

161Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide
7
Troubleshooting
This chapter shows you how to interpret information from the HSG80 controllers, the SAN
switches, and the operating system to aid in troubleshooting.
The user of these troubleshooting procedures must be familiar with Data Replication Manager
(DRM) procedures and CLI commands and must be proficient with the HSG80.
Refer to the HP StorageWorks Data Replication Manager HSG80 Version 8.7P
Failover/Failback Procedures Guide for additional and more detailed troubleshooting
procedures. Refer to the HP StorageWorks HSG80 Array Controller ACS Version 8.7
Maintenance and Service Guide for HSG80 information.
The goal of these troubleshooting procedures is to determine the cabling or connections
between controllers, switches, host bus adapters (HBAs), and servers across target and
initiator sites. When the actual cabling is known, it may be compared with the intended
cabling to account for sources of error.
To determine the cabling, first obtain information from the controller pairs, then from the
switches, and finally from the operating system.
This chapter covers the following topics:
■ Preliminary Checks‚ page 162
■ Information from the Controllers‚ page 162
— Step 1: Issue a SHOW THIS Command‚ page 162
— Step 2: Issue a SHOW OTHER Command‚ page 164
— Step 3: Issue a SHOW CONNECTIONS Command‚ page 165
■ Information from the Switches‚ page 167
— Step 4: Issue switchShow Command from the First Switch‚ page 168
— Step 5: Issue switchShow Command from the Second Switch‚ page 169
— Step 6: Issue switchShow Command from the Third Switch‚ page 171
— Step 7: Issue switchShow Command from the Fourth Switch‚ page 173
■ Information from the Operating Systems‚ page 175
— Step 8: Associating HBAs with Servers‚ page 175
■ Other Troubleshooting Considerations‚ page 179
— SHOW Commands‚ page 179
— Zoning‚ page 180