Seagate ST3250824NS Manuel d'utilisateur télécharger pdf (Page 20)

20 R/Evolution Storage System Release Notes • December 2006

Fault Isolation

The basic strategy for isolating a fault in one of the enclosures is to start with the

controller enclosure and confirm that connectivity to the drives is working before

adding an expansion enclosure.

Add a single expansion enclosure and confirm that full connectivity to the drives on

that expansion enclosure is working. Continue adding expansion enclosures and

confirming connectivity one enclosure at a time.

Since each expansion enclosure is connected by two cables, the cables should be

added one at a time, confirming connectivity before proceeding.

If a cable is connected and the storage system starts logging errors, or appears

unresponsive, then the last added connection is likely the fault.

The failing component can be either the egress (out-going) port on the previous

enclosure, the cable itself, or the ingress (in-coming) port on the newly added

enclosure. To determine the component causing the failure swap components with

known good components.

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Seagate ST3250824NS Manuel d'utilisateur Page 20