Sun ZFS Storage Appliance: SAS-8000-43 - SAS cable configuration exceeds maximum number of connections

Asset ID:	1-79-1593729.1
Update Date:	2018-05-25
Keywords:

Solution Type Predictive Self-Healing Sure

Solution 1593729.1 : Sun ZFS Storage Appliance: SAS-8000-43 - SAS cable configuration exceeds maximum number of connections

Applies to:

Sun ZFS Storage 7320 - Version All Versions and later
Sun ZFS Storage 7120 - Version All Versions and later
Oracle ZFS Storage ZS3-2 - Version All Versions and later
Oracle ZFS Storage ZS3-4 - Version All Versions and later
Sun ZFS Storage 7420 - Version All Versions and later
7000 Appliance OS (Fishworks)

Purpose

Provide additional information for message ID: SAS-8000-43

Scope

Details

Type: Fault,

fault.io.sas.cable.too-deep

&nbsp;

Severity: Major

Description

The maximum number of supported storage enclosures has been exceeded. The SAS cable on an HBA has 7 hops, maximum expected is 6.

Automated Response

None

Impact

Misconfigured SAS cable connections and too many storage enclosures may cause system degradation and performance issues.

Suggested Action for System Administrator

Prior to submitting a service request the storage/system administrator should perform the following SAS cable check:

Utilize the ZFS Maintenance BUI to identify the faulty SAS interface.
Review cabling diagrams in the online help or refer to the Quick Setup poster that shipped with the product. Also available is the Oracle ZFS Storage Appliance Installation Guide, located on the Oracle Technical Network documentation site.
Correct the cabling problem.
Verify via the Maintenance BUI the active fault has cleared
If the fault has cleared returned the ZFS appliance to normal operation
If the fault persists refer to the following document for the latest procedures for displaying event content in preparation for submitting a service request and applying any post-repair actions that may be required

PSH Procedural Article for Solaris FMA-Based Diagnosis (Doc ID 1173733.1)

***Checked for relevance on 25-MAY-2018***

References

<NOTE:1019887.1> - Sun Storage 7000 Unified Storage System: How to Collect a Support Bundle using the BUI or CLI
<NOTE:1416406.1> - Sun ZFS Storage Appliances Troubleshooting Resource Center
<NOTE:1432269.2> - Information Center: Sun ZFS Storage Appliances

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