HP StorageWorks 2012sa Modular Smart Array user (488320-004, March 2013)
Table Of Contents
- Contents
- About This Guide
- 1
- System Components
- 2
- Installing and Cabling Enclosures
- 3
- Connecting Hosts
- 4
- Configuring a System for the First Time
- 5
- Troubleshooting
- Fault Isolation Methodology
- Correcting Enclosure IDs
- Using System LEDs to Diagnose Problems
- Is the front panel Fault ID amber?
- Is the controller back panel OK LED off?
- Is the controller back panel Fault/Service Required LED amber?
- Are both drive module LEDs, Online/Activity, and Fault/UID LEDs off?
- Is the drive module Fault/UID LED blinking amber?
- Is a connected port’s Host Link Status LED off?
- Is a connected port’s Expansion Port status LED off?
- Is a connected port’s Ethernet link status LED off?
- Is the power-and-cooling module AC Power Good LED off?
- Is the power-and-cooling module DC Voltage/Fan Fault/Service Required LED amber?
- Is the drive enclosure back panel OK LED off?
- Is the drive enclosure Fault/Service Required LED amber?
- Isolating a Host-Side Connection Fault
- Isolating a Controller Module Expansion Port Connection Fault
- Resolving Voltage and Temperature Warnings
- A
- Environmental Requirements and Specifications
- B
- Regulatory Compliance and Safety
- Index
53
CHAPTER
5
Troubleshooting
Fault Isolation Methodology
The MSA2000 Family storage system provides many ways to isolate faults within
the system. This section presents the basic methodology used to locate faults and the
associated FRUs.
The basic fault isolation steps are:
■ Gather fault information, including by using system LEDs
■ Determine where in the system the fault is occurring
■ Review event logs
■ If required, isolate the fault to a data path component
Gather Fault Information
When a fault occurs, it is important to gather as much information as possible.
Doing so will help you determine the correct action needed to remedy the fault.
Begin by reviewing the reported fault. Is the fault related to an internal data path or
an external data path? Is the fault related to a hardware component such as a drive
module, controller module, or power-and-cooling module? By isolating the fault to
one of the components within the storage system, you will be able to determine the
necessary action more rapidly.
Determine Where the Fault Is Occurring
Once you have an understanding of the reported fault, review the enclosure LEDs.
The enclosure LEDs are designed to alert users of any system faults and might be
what alerted the user to a fault in the first place.