IBM DCS3860, Installation, User'S, And Maintenance Manual

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Attention: If the fault requires you to power-off an enclosure in your storage
system, you might have to cycle the power on the DCS3860 storage system and
all remaining expansion enclosures that are part of the storage system. Contact
your IBM technical-support representative before you power-off any other
component of the storage system.
4. If no storage system has a 'Needs Attention' status, then all components are
optimal. Check the LEDs on the front and the rear of the storage enclosure. A
green LED indicates a normal status; an amber LED indicates a hardware fault.
5. Check if the amber LED is lit. If yes, locate and troubleshoot the failed
components. See “Checking the LEDs.” If not, then you have completed this
procedure. If you are still experiencing a problem with the storage system,
create, save, and print a storage system profile, and contact your IBM
technical-support representative for assistance. When the recovery procedure is
completed, select
Recheck in the Recovery Guru to run the Recovery Guru
again to make sure that the problem is corrected.
Checking the LEDs
The LEDs indicate the status of the storage system and components. Green LEDs
indicate a normal operating status; amber LEDs indicate a possible failure; a blue
LED on a component indicates that it is safe to remove the component.
The DCS3860 also has a blue system locator LED that is lit when the menu
function is selected in the Subsystem Management window, causing the Locate
command to be sent to the DCS3860.
Check all the LEDs on the front and rear of the storage system when you turn on
the power. During power-on, the LEDs flash intermittently as the storage system
and components complete the power-on process. In addition to checking for faults,
you can use the LEDs on the front of the storage system to determine whether the
drives are responding to I/O transmissions from the host.
Front LEDs
This section describes the primary LEDs and controls on the front of the DCS3860.
The front LEDs and controls for the DCS3860 storage system or expansion unit is
shown in Figure 26.
dcsi0006
!
1
2
3
4
5
!
Figure 26. DCS3860 front LEDs and controls
Figure 27. DCS3860 storage system and EXP3800 storage enclosure front LEDs
Chapter 4. Operating the DCS3860 storage system and EXP3800 expansion enclosure
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