Chapter 5. Replacing components
This chapter contains information about replacing the storage subsystem components. It also contains information about installing an optional SAS host port adapter in a RAID controller.
Attention: Always replace a failed component as soon as possible. The Recovery Guru in the DS3000 Storage Manager software identifies failed components.
Service action allowed LED
Each controller and power supply has a blue service action allowed LED. The purpose of the service action allowed LED is to help ensure that a component is not removed before it is safe to do so. Do not remove any DS3200 component unless the component service action allowed LED is lit.
Attention
If you remove a controller or power supply when the service action allowed LED is not lit, a loss of data availability can result. If an amber LED is lit and the associated service action allowed LED is not lit, you must perform additional diagnostics before you can remove the indicated component. Use the Recovery Guru instructions in the DS3000 Storage Manager Subsystem Management window or see the applicable component replacement instructions in this chapter for the additional diagnostics that are required in this case.
The service action allowed LED automatically turns on or off as conditions change. Wait at least 2 minutes after you replace a component for the storage subsystem to recognize the new component and update the LED status. In most cases, when a single component fails, the service action allowed LED stays lit when the amber LED is lit for the component.
Removing a controller
Attention: Before you remove a controller in a
To remove a controller from the storage subsystem, complete the following steps:
1.Read the safety information that begins on page xi and “Best practices guidelines” on page 6.
Attention: Never remove a controller unless the service action allowed LED is lit. Doing so can result in a loss of data.
2.If the controller has failed, do not continue with this procedure. Instead, go to “Replacing a controller” on page 66.
Attention: Handle and install SAS cables correctly to avoid degraded performance or loss of communication with devices. When you work with SAS cables, do not pinch them, step on them, or locate them in aisles or walkways. Do not overtighten the cable straps or bend the cables to a radius smaller than 38 mm (1.5 in.).
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