HP StorageWorks Clustered File System 3.6.0 Windows Storage Server Edition Administration Guide (403103-005, January 2008)

Chapter 16: Configure Service Monitors 193
FTP Service Monitor
By default the FTP service monitor probes TCP port 21 of the virtual host
address. You can change this port number to the port number configured
for your FTP server. The default frequency of the probe is every 30
seconds. The default time that the service monitor waits for a probe to
complete is five seconds.
The probe function attempts to connect to port 21 and expects to read an
initial message from the FTP server. The message should begin with 220.
If the probe is successful, the monitor sends the string QUIT\n to the
server. If there are no errors, the service status remains Up. If an error
occurs, the status is set to Down.
HTTP Service Monitor
By default, the HTTP service monitor probes TCP port 80 of the virtual
host address. You can change this port number to the port number
configured for your HTTP server. The default frequency for the probe is
every 30 seconds; the default time that the service monitor waits for a
probe to complete is five seconds.
You can also supply a URL (either a directory or a full URL) that will be
read as part of the probe function. The probe attempts to connect to the
HTTP server and read the URL. If the response from the HTTP server is a
success code (200 <= reply < 300), then the service status remains Up. If
the probe does not receive a success code or it takes more than five
seconds to get the reply from the HTTP server, the service status is set to
Down. (You can view the reply code from the HP CFS Management
Console; select the service monitor, right-click, and select View Last
Error.)
HTTPS Service Monitor
This monitor functions in the same manner as the HTTP service monitor;
however, it uses the HTTS protocol to make the connection to port 443.
The URL specified for the monitor should begin with HTTPS.
NTSERVICE Service Monitor
The
NTSERVICE service monitor is configured for a specific NT service.
When the service monitor instance becomes active, it will start the NT