VCS hardware requirements
Table: Hardware requirements for a VCS cluster lists the hardware requirements for a VCS cluster.
Table: Hardware requirements for a VCS cluster
| Item | Description |
|---|---|
| DVD drive | One drive in a system that can communicate to all the nodes in the cluster. |
| Disks | Typical configurations require that the applications are configured to use |
| shared disks/storage to enable migration of applications between systems in the | |
| cluster. | |
| The SFHA I/O fencing feature requires that all data and coordinator disks support SCSI-3 Persistent Reservations (PR). | |
| Note: SFHA also supports non-SCSI3 server-based fencing configuration in virtual environments that do not support SCSI-3 PR-compliant storage. | |
| Network Interface Cards (NICs) | In addition to the built-in public NIC, VCS requires at least one more NIC per system. Veritas recommends two additional NICs. |
| You can also configure aggregated interfaces. | |
| Veritas recommends that you turn off the spanning tree on the LLT switches, and set port-fast on. | |
| Fibre Channel or SCSI host bus adapters | Typical VCS configuration requires at least one SCSI or Fibre Channel Host Bus Adapter per system for shared data disks. |
| RAM | Each VCS node requires at least 256 megabytes. |
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