Example B: Integration Server + storage + cache | Caching Server1 + storage + cache | Caching Server2 + storage

In this example there is a ProjectWise Integration Server and two ProjectWise Caching Servers. Each server has its own storage area. As in the previous example there are two sets of ProjectWise Explorer users: userA, userB, userC, and userD are local to the ProjectWise Integration Server, and userE, userF, userG, and userH are local to ProjectWise Caching Server 1.

The goal of this example is to enable caching on both the ProjectWise Integration Server and ProjectWise Caching Server 1, so that userA, userB, userC, and userD get all remote files from the cache on their local ProjectWise Integration Server, and so that userE, userF, userG, and userH get all remote files from the cache on their local ProjectWise Caching Server (PCS1).

ProjectWise Integration Server Configuration

The [Cache] section in the ProjectWise Integration Server's DMSKRNL.CFG file tells the ProjectWise Integration Server to enable caching on this computer, where to store the files on this computer, and how much space the cache can take up before it gets purged.
```
[Cache]
Enabled=true
;Servers=
StoragePath=d:\cacheroot
Limit=200
```
The [Gateway] section is echoed to all clients connected to the ProjectWise Integration Server, and instructs clients, who happen to be checking out or copying out files on remote servers, to instead get the files from the cache on their local server.
```
[Gateway]
PCS1=INTSERVER[Allow(userA,userB,userC,userD)]
PCS2=INTSERVER[Allow(userA,userB,userC,userD)]
INTSERVER=PCS1[Allow(userE,userF,userG,userH)]
PCS2=PCS1[Allow(userE,userF,userG,userH)]
```
The lines PCS1=INTSERVER[Allow(userA,userB,userC,userD)] and PCS2=INTSERVER[Allow(userA,userB,userC,userD)] tell the users listed that those file requests which would have gone to the ProjectWise Caching Server 1 (PCS1) or ProjectWise Caching Server 2 (PCS2), respectively, will instead be redirected to the ProjectWise Integration Server (INTSERVER). So when one of those users checks out a file stored on either ProjectWise Caching Server 1 or ProjectWise Caching Server 2, that user will instead be getting the file from cache on the local ProjectWise Integration Server. Since [Gateway] information is echoed to all clients connected to the ProjectWise Integration Server, the [Allow(userA,userB,userC,userD)] portion of each line ensures that only those users listed will be redirected to INTSERVER when making requests to PCS1 or PCS2.

The lines INTSERVER=PCS1[Allow(userE,userF,userG,userH)] and PCS2=PCS1[Allow(userE,userF,userG,userH)] tell the users listed that those file requests which would have gone to the ProjectWise Integration Server (INTSERVER) or ProjectWise Caching Server 2 (PCS2), respectively, will instead be redirected to the ProjectWise Caching Server 1 (PCS1). So when one of those users checks out a file stored on either the ProjectWise Integration Server or ProjectWise Caching Server 2, that user will instead be getting the file from cache on the local ProjectWise Caching Server (PCS1). Since [Gateway] information section is echoed to all clients connected to the ProjectWise Integration Server, the [Allow(userE,userF,userG,userH)] portion of each line ensures that only those users listed will be redirected to PCS1 when making requests to INTSERVER or PCS2.
The [Routing] section tells the ProjectWise Integration Server where to get files from when requests are received from clients.
```
[Routing]
PCS1=5800
PCS2=5800
```
In this example, the line PCS1=5800 instructs the ProjectWise Integration Server that when files are requested from ProjectWise Caching Server 1 (PCS1), to get them directly from PCS1 through port 5800. The line PCS2=5800 instructs the ProjectWise Integration Server that when files are requested from ProjectWise Caching Server 2 (PCS2), to get them directly from PCS2 through port 5800.

ProjectWise Caching Server 1 Configuration

The [Cache] section in ProjectWise Caching Server 1's DMSKRNL.CFG file tells the ProjectWise Caching Server to enable caching on this computer, where to store the files on this computer, and how much space the cache can take up before it gets purged.
```
[Cache]
Enabled=true
;Servers=
StoragePath=d:\cacheroot
Limit=200
```
The [Routing] section tells ProjectWise Caching Server 1 where to get files from when requests are received from clients.
```
[Routing]
INTSERVER=5800
PCS2=5800
```
In this example, the line INTSERVER=5800 instructs ProjectWise Caching Server 1 that when files are requested from the ProjectWise Integration Server (INTSERVER), to get them directly from INTSERVER through port 5800. The line PCS2=5800 instructs ProjectWise Caching Server 1 that when files are requested from ProjectWise Caching Server 2 (PCS2), to get them directly from PCS2 through port 5800.