13 6. Platform Requirements The OSS Gateway is usually deployed over a redundant platform. Messaging and Application Front-ends are deployed in a redundant manner with load balancing and high availability. Database servers are usually deployed in active-active mode with shared storages configured in RAID for maximum data protection. This setup ensures continuous service availability when any one of the node fails. The hardware and software requirements for the OSS Gateway are listed as below: o Message Transceiver and Application Server(s) o Unix Platform (e.g. RHEL, Solaris, etc) o Java Application Engine o Database Server(s) o Unix Platform (e.g. RHEL, Solaris, etc) o Shared SAS or FC Storage o RDBMS Database Engine o Others o Optional Firewalls o Load Balancers or High Availability Hardware/Software o Layer 2 or Layer 3 Switches
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