Configuration Tips for the Netfinity 5500
Configuration Tips for the Netfinity 5500
- All models come with an integrated dual-channel ServeRAID controller on the system board. You can
use this controller to configure redundant (level-1, enhanced level-1, or level-5) arrays for the internal,
nonshared, startup (boot) drives.
- In the Netfinity 5500, expansion slots 5 and 6 are on the primary PCI bus and expansion slots 1
through 4 are on the secondary PCI bus.
The system scans these slots to assign system resources, then, the system starts (boots) the PCI devices
in the following order: system board devices, slot 5, slot 6, slot 1, slot 2, slot 3, and finally slot 4.
- Each ServeRAID adapter supports up to eight logical drives.
If a failure occurs, the remaining ServeRAID adapter will need to support its own logical drives and the
logical drives of its counterpart in the failing server.
Therefore, the total number of shared logical drives for each set of ServeRAID adapters must not exceed eight.
A good way to ensure that you do not exceed this limit would be to define no more than four logical drives for each ServeRAID adapter.
- With the ServeRAID adapters, you can set the stripe-unit size to 8 K (the default), 16 K, 32 K, or 64 K.
After you set a stripe-unit size and store data on the logical drives, you cannot change the size without
destroying data in the logical drives.
Both adapters in a pair must use the same stripe-unit size.
- When the stripe-unit size is set to 8 K or 16 K, the maximum number of physical hard disk drives
in an array is 16.
- When the stripe-unit size is set to 32 K or 64 K, the maximum number of physical hard disk drives
in an array is eight.
- You must use IBM 100/10 PCI EtherJet Adapters or IBM 10/100 EtherJet PCI Adapters for the
cluster's heartbeat connection.
- You must use a point-to-point, Category 5 crossover cable for the heartbeat connection. Connections
through a hub are not supported.
- When using the Vinca High Availability for NetWare program, refer to the NetWare documentation for
information about calculating the amount of system memory needed to support the number and
capacity of hard disk drives you intend to install.
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