Configuration Tips for the PC Server 330

Configuration Tips for the PC Server 330

•  All five models come with an integrated single-channel Ultra SCSI ServeRAID II controller on the  system board. You can use this controller to configure redundant (level-1 or level-5) arrays for the  internal, nonshared, startup (boot) drives.

•  If you connect the startup drives to the ServeRAID controller on the system board, you must  install the  RAID adapters that control the shared-drive resources only in PCI slots 4, 5, and 6.

•  You must  use IBM 100/10 PCI EtherJet Adapters for the cluster's heartbeat connection.

•  You can use the integrated Ethernet controllers that come standard on some server models to connect  the server to the public network, however, these integrated controllers are not certified for use as 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.

•  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 and controllers, 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. In a clustered environment, both  ServeRAID adapters in a pair must  be of the same type and 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.

•  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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