5.1

3 Click the Edge Gateways tab, right-click the edge gateway name, and select Edge Gateway Services.
4 On the Load Balancer tab, click Pool Servers and click Add.
5 Type a name and optionally a description for the pool server and clickNext.
6 Click Enable for each service to support.
7 Select a balancing method from the drop-down menu for each enabled service.
Option Description
IP Hash
Selects a server based on a hash of the source and destination IP address of
each packet.
Round Robin
Each server is used in turn according to the weight assigned to it. This is the
smoothest and fairest algorithm when the server's processing time remains
equally distributed.
URI
The left part of the URI (before the question mark) is hashed and divided by
the total weight of the running servers. The result designates which server
will receive the request. This ensures that a URI is always directed to the
same server as long as no server goes up or down.
Least Connected
Distributes client requests to multiple servers based on the number of
connections already on the server. New connections are sent to the server
with the fewest connections.
8 (Optional) Change the default port for each enabled service if necessary.
9 Click Next.
10 Change the monitor port if required for each service that is to be supported by this pool.
11 Select the health check mode from the drop-down menu for each service.
Option Description
SSL
Tests servers using SSLv3 client hello messages. The server is considered
valid only when the response contains server hello messages.
HTTP
The GET / default method is used to detect server status. Only responses 2xx
and 3xx are valid. Other responses (including a lack of response) indicate a
server failure.
TCP
TCP connection check.
12 (Optional) Change the default health check parameters if necessary.
Option Description
Interval
Interval at which a server is pinged.
Timeout
Time within which a response from the server must be received.
Health Threshold
Number of consecutive successful health checks before a server is declared
operational.
Unhealth Threshold
Number of consecutive unsuccessful health checks before a server is declared
dead.
13 For HTTP, type the URI referenced in the HTTP ping requests.
14 Click Next.
15 Click Add to add a back-end server to the pool.
16 Type the IP address of the server.
17 Type the weight to indicate the ratio of how many requests are to be served by this back-end server.
18 Change the default port and monitor port for the server if required.
vCloud Director Administrator's Guide
76 VMware, Inc.