Compaq ProLiant 6400R Compaq Parallel Database Cluster Model PDC/05000 for Ora - Page 205

Troubleshooting Secure Path, Secure Path Guidelines for Windows 2000 Advanced Server, Advanced Server

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7-18 Compaq Parallel Database Cluster Model PDC/O5000 for Oracle8i and Windows 2000 Administrator Guide G Verify that the Fibre Channel cables have been properly installed from the Storage Hubs to both ports on the array controller. G Use the CLI to obtain status information about the array controller. Verify that both port 1 and port 2 on each array controller are active. Troubleshooting Secure Path For detailed information about troubleshooting Secure Path, refer to the troubleshooting documentation provided with the Secure Path software. Secure Path Guidelines for Windows 2000 Advanced Server The following rules and guidelines apply to the operation of Secure Path software in a PDC/O5000 cluster running Windows 2000 Advanced Server: I If you install the optional Compaq StorageWorks Large LUN utility on your PDC/O5000 cluster, you can distribute a maximum of 256 LUNs among the four array controller ports in each storage subsystem. I If you do not install the Large LUN utility, you can distribute a maximum of 16 LUNs among the four array controller ports in each storage subsystem. This 16-LUN restriction is imposed by the Compaq Secure Path software and the MA8000/EMA12000 Storage Subsystems. IMPORTANT: When offsets are used, always assign LUNs 0-99 to port 1 on each HSG80 Array Controller and assign LUNs 100-199 to port 2. I If you do not install the optional Large LUN utility on your cluster, there are two accepted methods for distributing LUNs for storagesets: G You can distribute eight LUNs between the same-numbered ports on both array controllers so that a total of 16 LUNs are assigned across all four controller ports in each storage subsystem. For example, assign LUNs 0 through 3 to array controller A port 1, LUNs 4 through 7 to array controller B port 1, LUNs 100 through 103 to array controller A port 2, and LUNs 104 through 107 to array controller B port 2. If array controller A fails in multibus failover mode, Secure Path automatically gives controller B control over I/O transfers for LUNs 0-3 on port 1 and LUNs 100-103 on port 2.

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7-18
Compaq Parallel Database Cluster Model PDC/O5000 for Oracle8i and Windows 2000 Administrator Guide
G
Verify that the Fibre Channel cables have been properly installed
from the Storage Hubs to both ports on the array controller.
G
Use the CLI to obtain status information about the array controller.
Verify that both port 1 and port 2 on each array controller are active.
Troubleshooting Secure Path
For detailed information about troubleshooting Secure Path, refer to the
troubleshooting documentation provided with the Secure Path software.
Secure Path Guidelines for Windows 2000
Advanced Server
The following rules and guidelines apply to the operation of Secure Path
software in a PDC/O5000 cluster running Windows 2000 Advanced Server:
■
If you install the optional Compaq StorageWorks Large LUN utility on
your PDC/O5000 cluster, you can distribute a maximum of 256 LUNs
among the four array controller ports in each storage subsystem.
■
If you do not install the Large LUN utility, you can distribute a
maximum of 16 LUNs among the four array controller ports in each
storage subsystem. This 16-LUN restriction is imposed by the Compaq
Secure Path software and the MA8000/EMA12000 Storage Subsystems.
IMPORTANT:
When offsets are used, always assign LUNs 0-99 to port 1 on each HSG80
Array Controller and assign LUNs 100-199 to port 2.
■
If you do not install the optional Large LUN utility on your cluster,
there are two accepted methods for distributing LUNs for storagesets:
G
You can distribute eight LUNs between the same-numbered ports on
both array controllers so that a total of 16 LUNs are assigned across
all four controller ports in each storage subsystem. For example,
assign LUNs 0 through 3 to array controller A port 1, LUNs 4
through 7 to array controller B port 1, LUNs 100 through 103 to
array controller A port 2, and LUNs 104 through 107 to array
controller B port 2. If array controller A fails in multibus failover
mode, Secure Path automatically gives controller B control over I/O
transfers for LUNs 0-3 on port 1 and LUNs 100-103 on port 2.