Compaq StorageWorks Data Replication Manager HSG80 ACS Version 8.5P Operations Guide

Managing Site Failover and Failback Procedures 5–15
Full Failback
Status Comparison
Before performing the Full Failback Procedure, verify that your initiator controller
configuration is the same as your target controller configuration. If write history
logging was enabled at the initiator before the failover, and remote copy sets were in
asynchronous operation mode, then write history logging will not be enabled at the
target site.
Compare the status of the controllers, association sets, remote copy sets, units, and
connections by following the procedure outlined below. Make sure any status change
is reflected on the target.
Terminal Emulator Session
1. Use a laptop computer or another computer to connect a serial cable between the COM
port on that machine and the corresponding serial port on the HSG80 controllers.
2. Start a terminal emulator session that is capable of capturing text. Settings to be used
are: 9600 baud, 8 bits, No parity, 1 stop bit, XON/XOFF.
SHOW Commands
1. To see the full information on this controller, issue the following CLI command:
SHOW THIS_CONTROLLER FULL
You should see a display similar to that shown in Example Display 1.
Example Display 1
Controller:
HSG80 ZG91412410 Software V85P, Hardware E05
NODE_ID = nnnnnnnnnnn
ALLOCATION_CLASS = 0
SCSI_VERSION = SCSI-2
Configured for MULTIBUS_FAILOVER with ZG91416136
In dual-redundant configuration
Device Port SCSI address 6
Time: NOT SET
Command Console LUN is lun 0 (NOIDENTIFIER)