Compaq ProLiant 6500 Compaq Parallel Database Cluster Model PDC/05000 for Orac - Page 186

Detecting I/O Path and Array Controller Failures, availability of storage resources.

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6-32 Compaq Parallel Database Cluster Model PDC/O5000 for Oracle8i and Windows 2000 Administrator Guide I Make an I/O path Offline. Use this action when you want to prevent that path from being used for any I/O operations under any circumstances. I Make an I/O path Online. Use this action when you want to return a path that is currently in the "Alt-Offline" or "Pre-Offline" mode to its original mode. I Verify an I/O path. Use this action when you want Secure Path Manager to determine the current state of a path. I Repair an I/O path. Use this action when you want Secure Path Manager to restore access to a failed path after the problem has been corrected. Refer to the Secure Path documentation provided with the Secure Path software for details on performing these operations. Detecting I/O Path and Array Controller Failures Secure Path Manager periodically monitors the status of all systems in your storage profile at a rate determined by the Polling Interval storage profile parameter. To indicate failures, icons are used and path states are set to FAILED in the Secure Path Manager GUI. In addition, failover events are logged by the RaiDisk driver in the Event Viewer. The Secure Path Agent also notifies StorageWorks Command Console immediately when a fault is detected. You should routinely monitor Secure Path Manager status to check for the occurrence of failover events that might compromise either the performance or availability of storage resources. Note that Secure Path Manager client is not required to be running in order for Secure Path to protect path availability. The RaiDisk device driver running on cluster nodes handles Secure Path's protection capability. Refer to the Secure Path documentation for descriptions of the icons used to indicate changes in path and controller status. Identifying I/O Path and Array Controller Failures The icons and other information in the Secure Path Manager views can help you identify the source of I/O path and array controller failures. See the Secure Path documentation for detailed descriptions of the procedures for performing these activities.

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6-32
Compaq Parallel Database Cluster Model PDC/O5000 for Oracle8i and Windows 2000 Administrator Guide
■
Make an I/O path Offline. Use this action when you want to prevent that
path from being used for any I/O operations under any circumstances.
■
Make an I/O path Online. Use this action when you want to return a path
that is currently in the
“
Alt-Offline
”
or
“
Pre-Offline
”
mode to its
original mode.
■
Verify an I/O path. Use this action when you want Secure Path Manager
to determine the current state of a path.
■
Repair an I/O path. Use this action when you want Secure Path Manager
to restore access to a failed path after the problem has been corrected.
Refer to the Secure Path documentation provided with the Secure Path
software for details on performing these operations.
Detecting I/O Path and Array Controller Failures
Secure Path Manager periodically monitors the status of all systems in your
storage profile at a rate determined by the Polling Interval storage profile
parameter. To indicate failures, icons are used and path states are set to
FAILED in the Secure Path Manager GUI. In addition, failover events are
logged by the RaiDisk driver in the Event Viewer. The Secure Path Agent also
notifies StorageWorks Command Console immediately when a fault is
detected.
You should routinely monitor Secure Path Manager status to check for the
occurrence of failover events that might compromise either the performance or
availability of storage resources.
Note that Secure Path Manager client is not required to be running in order for
Secure Path to protect path availability. The RaiDisk device driver running on
cluster nodes handles Secure Path
’
s protection capability.
Refer to the Secure Path documentation for descriptions of the icons used to
indicate changes in path and controller status.
Identifying I/O Path and Array Controller
Failures
The icons and other information in the Secure Path Manager views can help
you identify the source of I/O path and array controller failures. See the Secure
Path documentation for detailed descriptions of the procedures for performing
these activities.