Quantum 3.5.1 manual Required memory = 1GB + 4 * 2 * 64 * 16 * 256K = 3GB

= 1GB +

(# of file systems served

* # of NICs on the Distributed LAN Server used

Distributed LAN traffic * server buffer count

Distributed LAN Server/Client Network and Memory Tuning

*transfer buffer count

*transfer buffer size)

For example, suppose a Windows Distributed LAN Server is serving four file systems to 64 clients each using two NICs for data traffic. Also assume the server uses the defaults of sixteen transfer buffers and 256K per buffer. (On Windows, you can view and adjust the transfer buffer settings using the Client Configuration tool’s Distributed LAN tab.) Given this configuration, here is the result:

Required memory = 1GB + (4 * 2 * 64 * 16 * 256K) = 3GB

Note: This example assumes that a 64-bit version of Windows is being used on the Server. 32-bit Windows Distributed LAN Servers are restricted to small configurations using 16 or fewer connections.

If not all clients mount all of the file systems, the memory requirement is reduced accordingly. For example, suppose in the previous example that half of the 64 LAN clients mount three of the four file systems, and the other half of the LAN clients mount the remaining file system. Given this configuration, here is the result:

Required memory = 1GB + (3 * 2 * 32 * 16 * 256K) + (1 * 2 * 32 * 16 * 256K) = 1GB + 768MB + 256MB = 2GB

The calculation also changes when the number of NICs used for data traffic varies across clients. For example, in the previous example if the clients that mount only one file system each use three NICs for data instead of two, here is the result:

Required memory = 1GB + (3 * 2 * 32 * 16 * 256K) + (1 * 3 * 32 * 16 * 256K) = 1GB + 768MB + 384K = 2176MB

•Linux. For a Linux Distributed LAN Server, use the following formula:

Required memory

for

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