7-34
User
Guide

for

the

Cisco

Application

Networking

Manager

5.2
OL-26572-01
Chapter
7






Configuring

Virtual

Servers
Configuring
Virtual

Servers
Note
To
display

statistics

and

status

information

for

an

existing

server

farm,

choose

a

server

farm
in
the

list,

and

click

Details.

ANM

accesses

the

show

serverfarm

name

detail

CLI


command
to

display

detailed

server

farm

information.

See

the

“Displaying

Ser

ver

Farm
Statistics
and

Status

Information”

section

on

page

8-48 .
b.
In
the
Backup
Server

Farm

field,

choose

the

server

farm

to

act
as
the

backup

server

farm

for

l

oad
balancing
if

the

primary

server

farm

is

unavailable,

or

choose

*New*

to

configure

a

new

backup
server
farm

(see

Ta

b

l

e


7-13 ).
Note
Fields
and

i

nformation

related

to
IPv6
require

ACE

module

and

ACE

appliance

sof

tware
Version
A5(1.0)

or

later.
If
you

chose

an

existing

object

in

this

field,

you

can

view,

modify,

or

duplicate

the

selected

object’s
existing
configuration.

See

the

“Shared

Objects

and

Virtual

Servers”

section

on

page

7-9

for

more
information
about

modifying

shared

objects

in

vi

rtual

ser

vers.
Ta
b

l

e


7-13
New
Server

Farm

Attributes
Field
Description
Name
Unique
name

for

the

server

farm.

Valid

entries

are

unquoted

text

strings

with

no

spaces

and

a

maximum
of
64

characters.
Ty
p

e
Type
of

se

rver

farm:

•
Host—A
typical

server

farm

that

consists

of

real

servers

that

provide

content

and
services
to
clients.
By
default,

if

you

configure

a

backup

server

farm

and

all

real

servers

in

the

primary

server

farm

go
down,
the

pr

imary

ser

ver

farm

fails

over

to

t

he

backup

server

farm.

Use

t

he

following

options

t

o
specify
thresholds

for

failover

and

returning

to

service.
1.
In

the

Partial-Threshold

Percentage

field,

enter

the

minimum

percentage

of

real

servers

in

the
primary
server

farm

that

must

remain

active

for

the

server

farm

to

stay

up.

If

the

percentage

of

active
real
servers

falls

below

this

threshold,

the

ACE

takes

the

server

farm

out

of

service.

Valid

entries

are
from
0

to

99.
2.
In

the

Back

Inservice

field,

enter

the

percentage

of

real

servers

in

the

primary

server

farm

that

must
be
active

again

for

the

ACE

to

place

the

server

farm

back

into

service.

Valid

entries

are

from

0

to

99.
The
value

in

this

field

should

be

larger

than

the

value

in

the

Partial

Threshold

Percentage

field.

•
Redirect—A
server

farm

that

consists

only

of

real

servers

that

redirect

client
requests
to

alternate
locations
specified

in

the

real

server

configuration.
Fail
Action
Action
that

the

ACE

takes

if

any

real

server

in

the

server

farm

fails:

•
N/A—Indicates
that

the
ACE
is

to

take

no

action

if

any
server
in

the

server
farm
fails.

•
Purge—Indicates
that

the
ACE
is

to

remove

connections
to
a
real
server

if

that

real

server

in

the
server
farm

fails.

The

ACE

sends

a

reset

command

to

both

the

client

and

the

server

that

failed.

•
Reassign—Indicates
that

the

ACE

reassign

the

existing

server

connections

to

the

backup

real

server
(if
configured)

if

the

real

server

fails

after

you

enter

this

command.

If

a

backup

real

server

has

not
been
configured

for

the

failing

server,

this

selection

leaves

the

existing

connections

untouched

in

the
failing
real

ser

ver.