Servicing (service personnel only)
The following topics contain information about the service procedures for SAN Volume Controller nodes and the resources they manage.
With concurrent maintenance, all field replaceable units (FRUs) can be removed, replaced, and tested on one SAN Volume Controller node while the SAN and host systems are operating and doing productive work.
Attention:
- Do not remove the power from both SAN Volume Controller 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 SAN Volume Controller nodes in pairs. If one SAN Volume Controller node is being serviced, the other node can keep the SAN 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. - Checking the grounding of the node, uninterruptible power supply, and redundant AC-power switch
Ensure that you understand how to check the grounding of a SAN Volume Controller, the uninterruptible power supply, and the optional redundant AC-power switch feature. - Power-on self-test
When you turn on the SAN Volume Controller, the system board performs self-tests. During the initial tests, the hardware boot symbol is displayed. - Node errors
If an error occurs on a SAN Volume Controller system, the system generates an event ID and an associated error code. - Marking errors as fixed
You can use the management GUI to mark errors as fixed in the error log. 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 SAN Volume Controller nodes, expansion controllers, redundant AC-power switch, and uninterruptible power supply. - 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 has failed. - 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 SAN Volume Controller serial number using the CLI
The SAN Volume Controller serial number is normally rewritten by using the directed maintenance procedures, but can be rewritten by using the command-line interface (CLI). - Removing a storage system using the CLI
You can remove a storage system using the command-line interface (CLI). The system supports both Fibre Channel and iSCSI-attatched external storage systems.