If your current configuration consists of a SAN environment where Arcserve Backup servers reside on the SAN and other Arcserve Backup servers do not reside on the SAN, the best practice is to install Arcserve Backup in a centrally managed environment.
To upgrade your current SAN environment to a centralized management environment, you must upgrade your current SAN primary server to a Arcserve Backup Primary Server, and then upgrade your SAN distributed servers to Arcserve Backup Member Servers.
To install member servers, the installation must be able to detect the Arcserve Backup domain name and the primary server name in your environment. You should therefore install Arcserve Backup on at least one primary server before you install the member servers.
Note: Microsoft SQL Server 2008 Express Edition does not support remote communication. When you install Arcserve Backup using Microsoft SQL Server 2008 Express Edition, the installation wizard installs the database application and the Arcserve database instance on the primary server. To host the Arcserve database instance on a remote system, you must use Microsoft SQL Server.
The following diagram illustrates the architecture of a centralized management environment consisting of a primary server and member servers that reside on a SAN, and member servers that do not reside on the SAN.
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