Servicing
The following topics contain information about the service procedures for system nodes and the resources they manage.
With concurrent maintenance, all field replaceable units (FRUs) can be removed, replaced, and tested on one system node while the SAN and host systems are operating.
Attention:
- The service procedures are intended to be used by service personnel only.
- Do not remove the power from both system nodes unless you are instructed to do so.
- All service procedures that refer to SAN Volume Controller 2145-SV1 nodes are also applicable to SAN Volume Controller 2147-SV1 nodes. SAN Volume Controller 2147-SV1 nodes include Enterprise Class Support.
- Enabling concurrent maintenance
To enable concurrent maintenance, configure the system nodes in pairs. If one system node is being serviced, the other node can keep the network operational. - Diagnosing and resolving problems with fix procedures
You can use fix procedures to diagnose and resolve problems with the system. - Completing the system maintenance procedure by using the CLI
You can use the command-line interface (CLI) to complete the system maintenance procedure. - Power-on self-test
When you turn on the system, the system board performs self-tests. During the initial tests, the hardware boot symbol is displayed. - Node errors
If an error occurs on a system, an event ID and an associated error code are generated. - Marking errors as fixed
You can use the management GUI to mark errors as fixed in the events page. This action is only necessary if you fix an error without using the online maintenance procedures. The online procedures automatically mark an error as fixed after a successful repair. - Removing and replacing parts
You can remove and replace field-replaceable units (FRUs) from the nodes, expansion controllers, and other system units. - Replacing nodes nondisruptively
These procedures describe how to replace most nodes nondisruptively. - Recovering from offline volumes
You can use the management GUI or issue commands to recover from an offline volume after a node or an I/O group fails. - Recovering offline volumes using the CLI
If a node or an I/O group fails, you can use the command-line interface (CLI) to recover offline volumes. - Rewriting the system serial number using the CLI
The system serial number is normally rewritten by using the directed maintenance procedures. However, it can also be rewritten by using the command-line interface (CLI). - Removing a storage system by using the CLI
You can remove a storage system by using the command-line interface (CLI). The system supports both Fibre Channel and iSCSI-attached external storage systems.