User manual
Cluster deployment in an ISP
Cobalt CacheRaQ 4 User Manual 71
Cluster deployment in an ISP
Installation notes
• Configure one CacheRaQ 4 as the Cluster Master (see “Cache Cluster
settings” on page 34).
• Configure the Cluster Master to operate in Transparent Caching mode using
one network interface.
• The Cluster Slaves require no special configuration.
• Enter the IP address of the router as the gateway for the Cluster Master.
• Configure the access concentrators (“DIAL UP”) to use the Cluster Master
as their gateway.
Advantages
• The clustered CacheRaQ 4s provide high-availability and high-speed cache
access as well as larger cache storage.
• This solution is scalable—you can add up to five Cluster Slaves.
Disadvantage
• You cannot have more than five Cluster Slaves. If you want more capacity,
you can use an L4 switch solution (see “Cluster deployment with an
L4 switch in an ISP” on page 72).