POWER7 information

MAP 3242

Use this MAP to resolve the following problem:

Configuration error: incorrect connection between cascaded enclosures (SRN nnnn-4010) for a PCIe2 or a PCIe3 controller.

The possible causes follow:

Incorrect cabling of cascaded device enclosures
Use of an unsupported device enclosure

Consider removing power from the system before connecting and disconnecting cables or devices, as appropriate, to prevent hardware damage or erroneous diagnostic results.

Step 3242-1

Identify the adapter SAS port that is associated with the problem by examining the hardware error log. View the hardware error log as follows:

Follow the steps in Examining the hardware error log and return here.
Obtain the Resource field from the Detail Data / PROBLEM DATA section as illustrated in the following example:
Detail Data PROBLEM DATA 0001 0800 1910 00F0 0408 0100 0101 0000 0150 003E 0000 0030 57B5 4100 0000 0001 0004 FFFF FFFF FFFF 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0004 AA98 ^ | Resource is 0004FFFF

Using the resource found in step 2, see SAS resource locations to understand how to identify the controller's port to which the device, or device enclosure, is attached.

For example, if the resource is 0004FFFF, port 04 on the adapter is used to attach the device or device enclosure that is experiencing the problem.

Step 3242-2

Review the device enclosure cabling and correct the cabling as required. To see examples of device configurations with SAS cabling, see Serial attached SCSI cable planning.

If unsupported device enclosures are attached, then either remove or replace them with supported device enclosures.

Step 3242-3

Run diagnostics in system verification mode on the adapter to rediscover the devices and connections.

Start Diagnostics and select Task Selection on the Function Selection display.
Select Run Diagnostics.
Select the adapter resource.
Select System Verification.

Referring to the steps in Examining the hardware error log, did the error recur?

No: Go to Step 3242-4.
Yes: Contact your hardware service provider.

Step 3242-4

When the problem is resolved, see the removal and replacement procedures topic for the system unit on which you are working and do the "Verifying the repair" procedure.

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Last updated: Thu, October 10, 2013