8-33
User
Guide

for

the

Cisco

Application

Networking

Manager

5.2
OL-26572-01
Chapter
8






Configuring

Real

Servers

and

Server

Farms
Configuring
Server

Farms
Transparent
Field
that

appears

only

for

host

server

farms.
Specify
whether

network

address

translation

from

the

VIP

address

to

the

server

IP

is

to

occur.
Check
the

check

box

to

indicate

that

network

address

translation

from

the

VIP

address

to

the

server
IP
address

is

to

occur.

Uncheck

the

check

box

to

indicate

that

network

address

translation

from

the
VIP
address

to

the

server

IP

ad

dress

is

not

to

occur.
Dynamic
Workload
Scaling
Option
that

is

available

only

for

ACE

software

Version

A4(2.0)

or

later

release

on

either

device

type
(appliance
or

mo

dule).

Fi

eld

that

appears

onl

y

for

host

server

farms.
Allows
the

ACE

to

burst

traffic

to

remote

VMs

when

the

average

CPU

or

memory

usage

of

the

local
VMs
has

reached

its

specified

maximum

threshold

value.

The

ACE

stops

bursting

traffic

to

the
remote
VMs

when

the

average

CPU

or

memory

usage

of

the

local

VMs

has

dropped

below

its
specified
minimum

threshold

value.

This

option

requires

that

you

have

the

ACE

configured

for
Dynamic
Workload

Scaling

using

a

Nexus

7000,

VM

Controller,

and

VM

probe

(see

the
“Configuring
Dynamic

Workload

Scaling”

section

on

page

8-26 ).
Click
one

of

the

following

radio

button

options:

•
N/A—Not
applicable

(default).

•
Local—Restricts
the
ACE
to

use

of
local
VMs

only
for
server

load

balancing.

•
Burst—Enables
the

ACE

to

burst

traffic

to

remote

VMs

when

needed.
When
you

choose

Burst,

the

VM

Probe

Name

field

displays

along

with

a

list

of

available

VM
probes.
Choose

an

available

VM

probe

or

click

Add

to

display

the

Health

Monitoring

popup
window
and

create

or

edit

a

VM

probe

(see

the

“Configuring

Health

Monitoring”

section

on
page
8-49 ).
Fail-
On-All
Field
that

appears

only

for

host

server

farms.
By
default,

real

ser

vers

that

you

configure

i

n

a

ser

ver

farm

i

nherit

the

pr

obes

that

you

configure
directly
on

that

server

farm.

When

you

configure

multiple

probes

on

a

server

farm,

the

real

servers
in
the

server

farm

use

an

OR

logic

with

respect

to

the

probes,

which

means

that

if

one

of

the

probes
configured
on

the

server

farm

fails,

all

the

real

servers

in

that

server

farm

fail

and

enter

the
PROBE-FAILED
state.

With

AND

logic,

if

one

server

farm

probe

fails,

the

real

servers

in

the

server
farm
remain

in

the

operational

state.

If

all

the

probes

associated

with

the

server

farm

fail,

then

all
the
real

servers

in

that

server

farm

fail

and

enter

the

PROBE-FAILED

state.
Check
this

check

box

to

configure

the

real

servers

in

a

server

farm

to

use

AND

logic

with

respect
to
multiple

server

farm

probes.
The
Fail-On-All

function

is

applicable

to

all

probe

types.
Table
8-7
Server
Farm

Attributes

(continued)
Field
Description