IBM RS/6000 7025 manual Maximum

Note:

A

value

of

0

indicates

'do

not

attempt

to

reboot'

to

a

crashed system.

This number is the maximum number of consecutive

attempts

to

reboot

the

system.

The

term

"reboot", in the context of this service

aid, is used to describ

bringing

system hardware

back

up

from

scratch,

for

example

from a system

reset

or power

on.

Once

the

Maximum

Number

of

Reboot

Attempts

is

exceeded,

the

system

will

call

out

if

that function has been enabled.

When

the

reboot

process

completes successfully,

the

reboot

attempts

count

is

reset

to

0,

and

a "restart" begins. The term "restart", in

the context of this se

aid, is used to describe the operating

system activation

process.

Restart always

follows

a

successful

reboot.

When

a

restart

fails, and a restart policy is

enabled,

the

system will

attempt to

reboot

for

the

maximum

number

of

attempts.

ŸUse the O/S Defined Restart Policy (1=Yes, 0=No)

When 'Use	the	O/S	Defined	Restart Policy'	is set	to	Yes, the	system will attempt
to reboot	from	a	crash if	the operating	system	has	an enabled	Defined Restart or
Reboot Policy.

When 'Use the O/S Defined Restart Policy' is set to No, or the operating system restart policy is undefined, then the restart policy is determined by the 'Supplemental Restart Policy'.

ŸEnable Supplemental Restart Policy (1=Yes, 0=No)

The 'Supplemental Restart Policy', if enabled, is used when the O/S Defined Restart Policy is undefined, or is set to False.

When surveillance detects operating system inactivity during restart, an enabled 'Supplemental Restart Policy' causes a system reset and the reboot process begins.

ŸCall-Out Before Restart (on/off)

When enabled, Call-Out Before Restart will allow the system to call out (on a

serial port that is enabled for call out) when an operating system restart is initiated. Such calls can be valuable if the number of these events becomes excessive, thus signalling bigger problems.

ŸEnable Unattended Start Mode (1=Yes, 0=No)

When	enabled,		'Unattended		Start	Mode'	will	allow	the	system to recover from the
loss	of	AC power.
If	the	system was powered-on when the						AC loss	occured, the system will reboot
when	power is restored. If the system was powered-off when the AC loss
occured,		the	system	will remain		off	when	power	is	restored.
7-8 IBM	RS/6000	7025	F50 Series	User's	Guide