Are
the
voltages
good
at
each
connector?
NO
Replace
the
power
distribution
cable
(see
“Removing
and
Replacing
the
Power
Distribution
Cable”
on
page
39),
reassemble
the
enclosure,
and
then
return
to
Step
1.
YES
Reattach
the
power
cables
to
the
devices
and
then
go
to
Step
12.
Step
12
This
step
examines
the
drives
as
the
possible
source
of
the
problem.
1.
Press
the
power
switch
to
turn
off
the
power
to
the
7212
Storage
Enclosure.
2.
Disconnect
the
power
distribution
cable,
SCSI
cable,
and
SCSI
address
cable
from
the
drive
in
Bay
A.
3.
Press
the
power
switch
to
turn
on
the
power.
Does
the
drive
in
Bay
B
power
up
and
complete
the
Power
On
Self
Test
(POST)
normally?
NO
Turn
off
the
power,
reconnect
the
cables
to
the
drive
in
Bay
A,
and
then
disconnect
the
cables
from
the
back
of
the
drive
in
Bay
B.
If
the
drive
in
Bay
A
then
powers
on
normally,
replace
the
drive
in
Bay
B
and
then
return
to
Step
1.
If
not,
go
to
Step
15.
YES
Replace
the
drive
in
Bay
A
and
then
return
to
Step
1.
Step
13
This
step
checks
whether
the
media
is
the
source
of
the
problem.
1.
Press
the
media
unload
button
on
the
drive
(refer
to
the
drive
descriptive
chapters
in
the
7212
Model
102
Storage
Device
Enclosure
Setup
and
Operator
Guide).
2.
Remove
the
used
media.
If
the
media
fails
to
unload,
refer
to
drive
specific
chapters
(4,
5,
and
6)
in
this
manual
for
manual
media
unload
procedures.
3.
Power
the
7212
Storage
Enclosure
off
and
then
back
on.
Insert
new
media
and
then
power
the
7212
Storage
Enclosure
off
and
then
back
on.
Do
the
installed
drives
power
up
and
complete
the
POST
normally?
NO
If
the
drives
do
not
power
up,
go
to
Step
11.
If
the
drives
power
up,
but
with
status
lights
reporting
an
error
condition,
follow
the
recommended
drive
service
action
(refer
to
the
drive
descriptive
chapters
in
the
7212
Model
102
Storage
Device
Enclosure
Setup
and
Operator
Guide),
and
then
go
to
Step
1.
YES
Discard
the
used
media
and
then
go
to
Step
14.
Step
14
This
step
performs
a
visual
and
physical
check
in
an
attempt
top
fix
the
problem.
1.
Do
a
controlled
system
shutdown
(refer
to
the
instructions
in
the
7212
Model
102
Storage
Device
Enclosure
Setup
and
Operator
Guide).
2.
Ensure
that
the
power
to
the
host
is
off.
3.
Turn
off
the
power
to
the
7212
Storage
Enclosure.
4.
Unplug
the
7212
Storage
Enclosure
from
the
electrical
source.
Chapter
2.
Maintenance
Analysis
Procedures
19
Содержание 7212 102
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