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HSG80 Array Controller V8.7 Maintenance and Service Guide
5–41
Upgrading the Subsystem
Figure 5–5: Cache module DIMM locations
IMPORTANT: For ACS V8.7P installations, the required cache memory configuration is 512
MB.
For ACS V8.7R and V8.7W installations, the required cache memory configuration is 512 MB
mirrored cache.
For ACS V8.7S, StorageWorks strongly recommends using 512 MB of cache memory.
To upgrade cache module memory, its controller must be shut down. Use the
following steps to upgrade or add DIMMs.
CAUTION: ESD can easily damage a cache module or a DIMM. Wear a snug-fitting,
grounded ESD wrist strap.
1. From the host console, dismount the logical units in the subsystem.
2. If using a Windows NT platform, shut down the server.
Table 5–1: Cache Module Memory Configurations
Memory
DIMMs
Quantity
Location
64 MB
32 MB
2
1 3
128 MB
32 MB
4
1 2 3 4
256 MB
128 MB
2
1 3
512 MB
128 MB
4
1 2 3 4
CXO6576B
4
2
3
1