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

Upgrading to ACS Version 8.7P Software
228 Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide
Target Site Upgrade Procedure
Note: During the target site upgrade, one of the initiator site controllers could restart with an
instance code of 0xE096980. This potential restart is expected; disregard the associated instance
code.
T 1. Connect a PC or terminal to the maintenance port of Controller A at the target site.
T 2. Delete any snapshot units by performing the following steps:
a. Identify all snapshot units:
HSGA> SHOW UNITS FULL
b. Record the configuration for each snapshot unit for restoration in step 16.
c. Delete all snapshot units individually with the following command:
HSGA> DELETE snapshot-unit-name
T 3. Verify that all snapshot units are deleted:
HSGA> SHOW UNITS FULL
Note: If any snapshot unit remains, repeat step 2.
T 4. Identify and record the current CACHE_FLUSH_TIMER value:
HSGA> SHOW THIS_CONTROLLER
The following text is only a portion of the resulting display:
Note: The CACHE_FLUSH_TIMER value is displayed in the caching parameters section. This
parameter is modified during the procedure and must be restored in step 14.
T 5. For each unit, identify and record the unit WRITEBACK_CACHE characteristics:
HSGA> SHOW UNITS FULL
Note: The unit WRITEBACE_CACHE characteristics are modified during the upgrade
procedure and must be restored in step 15.
Cache:
256 megabyte write cache, version 0022
Cache is GOOD
No unflushed data in cache
CACHE_FLUSH_TIMER=DEFAULT (10 seconds)