Control enclosure
Find out how to troubleshoot the control enclosure, which includes the use of error codes, problem scenarios, software, and removal and replacement instructions.
About this task
- Storwize V7000 system interfaces
The Storwize® V7000 system provides a number of user interfaces to troubleshoot, recover, or maintain your system. The interfaces provide various sets of facilities to help resolve situations that you might encounter. The interfaces for servicing your system connect through the 1 Gbps Ethernet ports that are accessible from port 1 of each canister or by directly connecting to the technician port of a node canister. You cannot manage a system by using the 10 Gbps Ethernet ports. - Starting statistics collection
You can start the collection of cluster statistics from the Starting the Collection of Statistics panel in the management GUI. - Event reporting
Events that are detected are saved in an event log. As soon as an entry is made in this event log, the condition is analyzed. If any service activity is required, a notification is sent, if you have set up notifications. - Battery operation for the control enclosure
Storwize V7000 Unified node canisters cache volume data and hold state information in volatile memory. Battery operations differ, depending on the generation of your control enclosure model. - Understanding the medium errors and bad blocks
A storage system returns a medium error response to a host when it is unable to successfully read a block. The Storwize V7000 Unified response to a host read follows this behavior. - Resolving a problem
Described here are some procedures to help resolve fault conditions that might exist on your system and which assume a basic understanding of the Storwize V7000 Unified system concepts. - Storwize V7000 replaceable units
Each Storwize V7000 model consists of several replaceable units. Generic replaceable units are cables, SFP transceivers, canisters, power supply units, battery assemblies, and enclosure chassis. The parts list varies, depending on the generation of your control enclosure model. - Replacing parts
You can remove and replace customer-replaceable units (CRUs) in control enclosures or expansion enclosures. - General storage system procedures
This section provides general information about hardware and Fibre Channel link issues. - Recover system procedure
The recover system procedure recovers the entire storage system if the system state is lost from all control enclosure node canisters. The procedure re-creates the storage system by using saved configuration data. The saved configuration data is in the active quorum disk and the latest XML configuration backup file. The recovery might not be able to restore all volume data. This procedure is also known as Tier 3 (T3) recovery. - Backing up and restoring the system configuration
You can back up and restore the configuration data for the system after preliminary tasks are completed.
Parent topic: Troubleshooting