Compaq ProLiant 6500 Compaq Parallel Database Cluster Model PDC/O1000 for Orac - Page 63

Planning Shared Storage Components for NonRedundant Fibre Channel Fabrics

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4-4 Compaq Parallel Database Cluster Model PDC/O1000 for Oracle8i and Windows 2000 Administrator Guide Planning Shared Storage Components for Non-Redundant Fibre Channel Fabrics Several key components make up the shared storage subsystem for the PDC/O1000. Each non-redundant Fibre Channel Fabric in a PDC/O1000 uses these hardware components: I One Compaq StorageWorks 64-bit/66-MHz Fibre Channel Host Adapter or Compaq StorageWorks Fibre Channel Host Bus Adapter/P (Fibre Host Adapter) in each node I One Compaq StorageWorks Fibre Channel SAN Switch (Fibre Channel SAN Switch) I One or more Compaq StorageWorks RAID Array 4000s (RA4000 Arrays) or Compaq StorageWorks RAID Array 4100s (RA4100 Arrays) I One single-port Compaq StorageWorks RAID Array 4000 Controller (RA4000 Array Controller) installed in each RA4000/RA4100 Array NOTE: For more information about non-redundant Fibre Channel Fabrics in a PDC/O1000 cluster, see Chapter 2, "Cluster Architecture." The Fibre Channel SAN Switch is available in 8-port and 16-port models. To determine which Fibre Channel SAN Switch model is appropriate for a non-redundant Fibre Channel Fabric in your cluster, identify the total number of Fibre Host Adapters and RA4000/RA4100 Arrays connected to that non-redundant Fibre Channel Fabric. If the combined number of Fibre Host Adapters and RA4000/RA4100 Arrays exceeds eight, you must use a 16-port Fibre Channel SAN Switch. Also consider the possibility of future cluster growth when you select your model. The number of RA4000/RA4100 Arrays and shared disk drives used in a PDC/O1000 depends on the amount of shared storage space required by the database, the hardware RAID levels used on the shared storage disks, and the number and storage capacity of disk drives installed in the enclosures. Refer to "Raw Data Storage and Database Size" in this chapter for more details. NOTE: For improved I/O performance and cluster integrity, as you increase the number of nodes in a PDC/O1000 cluster, you should also increase the aggregate bandwidth of the shared storage subsystem by adding more or higher-capacity disk drives.

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4-4
Compaq Parallel Database Cluster Model PDC/O1000 for Oracle8i and Windows 2000 Administrator Guide
Planning Shared Storage Components for
Non-Redundant Fibre Channel Fabrics
Several key components make up the shared storage subsystem for the
PDC/O1000. Each non-redundant Fibre Channel Fabric in a PDC/O1000 uses
these hardware components:
■
One Compaq StorageWorks 64-bit/66-MHz Fibre Channel Host Adapter
or Compaq StorageWorks Fibre Channel Host Bus Adapter/P (Fibre
Host Adapter) in each node
■
One Compaq StorageWorks Fibre Channel SAN Switch (Fibre Channel
SAN Switch)
■
One or more Compaq StorageWorks RAID Array 4000s (RA4000
Arrays) or Compaq StorageWorks RAID Array 4100s (RA4100 Arrays)
■
One single-port Compaq StorageWorks RAID Array 4000 Controller
(RA4000 Array Controller) installed in each RA4000/RA4100 Array
NOTE:
For more information about non-redundant Fibre Channel Fabrics in a PDC/O1000
cluster, see Chapter 2, “Cluster Architecture.”
The Fibre Channel SAN Switch is available in 8-port and 16-port models.
To determine which Fibre Channel SAN Switch model is appropriate for a
non-redundant Fibre Channel Fabric in your cluster, identify the total number
of Fibre Host Adapters and RA4000/RA4100 Arrays connected to that
non-redundant Fibre Channel Fabric. If the combined number of Fibre Host
Adapters and RA4000/RA4100 Arrays exceeds eight, you must use a 16-port
Fibre Channel SAN Switch. Also consider the possibility of future cluster
growth when you select your model.
The number of RA4000/RA4100 Arrays and shared disk drives used in a
PDC/O1000 depends on the amount of shared storage space required by the
database, the hardware RAID levels used on the shared storage disks, and the
number and storage capacity of disk drives installed in the enclosures. Refer to
“Raw Data Storage and Database Size” in this chapter for more details.
NOTE:
For improved I/O performance and cluster integrity, as you increase the number of
nodes in a PDC/O1000 cluster, you should also increase the aggregate bandwidth of the
shared storage subsystem by adding more or higher-capacity disk drives.