Action
Install the cache module to remove the limitations. For more information, see the maintenance and service
guide on the Hewlett Packard Enterprise website.
1804-Slot X Drive Array – Cache Module critical error
Symptom
1804-Slot X Drive Array – Cache Module critical error. Action: Replace Cache Module (Controller is disabled
until this problem is resolved).
Cause
The cache module has failed.
Action
Replace the cache module. For more information, see the maintenance and service guide on the Hewlett
Packard Enterprise website.
1806-Slot X Drive Array – Cache Module flash memory is not installed
Symptom
1806-Slot # Drive Array – Cache Module flash memory is not installed. IMPORTANT: Unsupported
Configuration: Cache Module functionality is limited. Action: Install the flash memory to remove these
limitations.
Cause
The cache module flash memory is not installed.
Action
Install the flash memory. For more information, see the user guide on the Hewlett Packard Enterprise
website.
1807-Slot X Drive Array – Cache Module incompatible with this controller
Symptom
1807-Slot X Drive Array – Cache Module incompatible with this controller. IMPORTANT: Access to all storage
has been disabled. Action: Replace the Cache Module to re-enable all storage.
Cause
The cache module is incompatible with the controller.
Action
1. To locate a supported option, review the product QuickSpecs on the Hewlett Packard Enterprise
website.
2. Replace the cache module with a supported option.
154 1804-Slot X Drive Array – Cache Module critical error