NetApp SteelStore 30 Series, Owner'S Manual

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Troubleshooting
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Chapter 5
Troubleshooting
5.1 Overview
The SteelStore appliance includes an Appliance Services Processor and associated monitoring and
control logic to enable it to diagnose problems within the EM Card, Ops Panel, CPU(s) and DIMM(s).
The sensors for power and cooling conditions are housed within the power supplies and cooling fans.
There is independent monitoring for each unit.
5.1.1 Continuous Operation During Replacement
If a disk unit fails, it can normally be replaced without interrupting the use of the system.
If an appliance contains two power supply units, either of them can maintain power to the subsystem
while the other is replaced.
5.1.2 Replacing Modules
Make sure that you have obtained a replacement module of the same type before removing any faulty
module. Refer to Chapter 6 for instructions on how to replace modules.
Warning If the SteelStore system is powered up and you remove any module, its replacement must be
inserted immediately. If the system is used with modules or module blanks missing for more than
a few minutes, the appliance can overheat, causing power failure and data loss. Such use will
invalidate the warranty.
• Replace a faulty drive with a drive of the same type and equal or greater capacity.
• All drive bays must be fitted with a drive carrier module to maintain a balanced air flow.