Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide

2-66 Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide
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Writer: John Blackburn Project: Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide Comments:
Part Number: 225082-002 File Name: c-ch2 Cluster Architecture.doc Last Saved On: 6/13/01 10:21 AM
Table 2-8 identifies possible I/O path failure events for active/standby
configurations with two or more RA4000/RA4100 Arrays and the failover
response, if any, implemented by Secure Path for each failure.
Table 2-8
I/O Path Failure and Failover Scenarios in Redundant FC-ALs for Active/Standby
Configurations With Two or More RA4000/RA4100 Arrays
Description of Failure Failover Response
The active array controller in one
RA4000/RA4100 Array fails.
Secure Path forces a complete failover to the standby I/O path
components, including the standby Fibre Host Adapter in each
node, the other Storage Hub or FC-AL Switch, the standby array
controller in each RA4000/RA4100 Array, and Fibre Channel cables.
The standby array controller in one
RA4000/RA4100 Array fails.
None
The Fibre Channel cable
connection between the active
array controller in one
RA4000/RA4100 Array and its
Storage Hub or FC-AL Switch is
broken.
Secure Path forces a complete failover to the standby I/O path
components, including the standby Fibre Host Adapter in each
node, the other Storage Hub or FC-AL Switch, the standby array
controller in each RA4000/RA4100 Array, and Fibre Channel cables.
The Fibre Channel cable
connection between the standby
array controller in one
RA4000/RA4100 Array and its
Storage Hub or FC-AL Switch is
broken.
None
The Storage Hub or FC-AL Switch
that is connected to the active
array controller in each
RA4000/RA4100 Array fails.
Secure Path forces a complete failover to the standby I/O path
components, including the standby Fibre Host Adapter in each
node, the other Storage Hub or FC-AL Switch, the standby array
controller in each RA4000/RA4100 Array, and Fibre Channel cables.
The Storage Hub or FC-AL Switch
that is connected to the standby
array controller in each
RA4000/RA4100 Array fails.
None
continued