
channel
loopback
and
the
LC-LC
connector
to
perform
path
diagnostics
to
ensure
that
the
FC
cable
is
good
and
the
SFP
on
the
other
end
of
the
fibre
channel
connection
is
working
properly.
When
finished,
go
to
step
v
Bypass
LED
and
Fault
LED
are
off
-
Go
to
step
12.
Is
the
problem
corrected?
v
Yes
-
Go
to
step
v
No
-
Contact
IBM
Support.
13.
Complete
any
remaining
Recovery
Guru
procedures,
if
needed.
14.
Use
the
DS4000
Storage
Manager
Subsystem
Management
window
to
check
the
status
the
status
of
all
components
in
the
storage
subsystem.
15.
Remove
the
antistatic
protection.
16.
Does
any
component
have
a
Needs
Attention
status?
v
Yes
-
Select
the
Recovery
Guru
toolbar
button
in
the
Subsystem
Management
window,
and
complete
the
recovery
procedure.
If
the
problem
persists,
contact
IBM
Support.
v
No
-
Go
to
step
17.
Use
the
DS4000
Storage
Manager
client
software
to
a
new
storage
subsystem
profile.
Replacing
a
midplane
Perform
the
following
steps
to
replace
a
midplane:
1.
Complete
the
power-off
sequence
described
in
the
IBM
System
Storage
DS4200
EXP420
Storage
Expansion
Enclosure
Installation,
User’s
and
Maintenance
Guide
ensuring
that
the
DR550
Storage
Controller
is
turned
off
before
any
attached
storage
expansion
enclosures.
2.
Power
off
the
DR550
Expansion
Drawer
that
will
have
its
midplane
replaced.
3.
Remove
the
power
cords
from
the
power
supply
and
fan
units
of
the
DR550
Expansion
Drawer.
4.
Label
the
fibre
channel
cables
that
are
attached
to
the
rear
of
the
ESMs.
Labeling
the
cables
simplifies
the
re-cabling
process.
5.
Remove
the
fibre
channel
cables
that
are
attached
to
the
rear
of
the
ESMs.
6.
Remove
both
ESMs.
To
remove
them
perform
the
following
steps:
a.
Squeeze
the
ESM
latch
and
pull
the
lever
open
90°
(so
that
the
lever
is
horizontal)
to
release
the
ESM
from
the
latch.
The
ESM
latch
is
a
coral
colored
tab
on
the
lever.
Note:
The
lever
rotates
upward
or
downward
90°,
depending
on
whether
the
ESM
you
are
removing
is
the
right
or
left
ESM
CRU.
b.
Slowly
pull
the
lever
away
from
the
DR550
Expansion
Drawer
chassis
to
remove
the
ESM
from
the
ESM
bay.
(You
do
not
have
to
actually
remove
them
from
the
ESM
bays.)
c.
Repeat
steps
and
for
the
other
ESM.
7.
Remove
both
power
supply
and
fan
units.
To
remove
them
perform
the
following
steps:
a.
Squeeze
the
latch
and
pull
the
lever
open
90°
(so
that
the
lever
is
horizontal)
to
release
the
power
supply
and
fan
unit
from
the
latch.
The
latch
is
a
coral
colored
tab
on
the
lever.
124
DR550
Version
4.5
Problem
Determination
and
Service
Guide
Содержание DR550
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Страница 178: ...DR2 power cabling Figure 77 DR2 power cabling primary rack 150 DR550 Version 4 5 Problem Determination and Service Guide...
Страница 179: ...Figure 78 DR2 power cabling primary rack and expansion rack Appendix A DR1 and DR2 cabling diagrams 151...
Страница 180: ...Figure 79 DR2 power cabling expansion rack 152 DR550 Version 4 5 Problem Determination and Service Guide...
Страница 185: ...DR1 power cabling Figure 88 DR1 Power Cabling Appendix A DR1 and DR2 cabling diagrams 157...
Страница 186: ...Figure 89 DR1 Power Cabling 158 DR550 Version 4 5 Problem Determination and Service Guide...
Страница 190: ...Figure 95 Storage Controller port identification 162 DR550 Version 4 5 Problem Determination and Service Guide...
Страница 191: ...Figure 96 Expansion Drawer port identification Appendix A DR1 and DR2 cabling diagrams 163...
Страница 192: ...Figure 97 Power Control Assembly PCA port identification 164 DR550 Version 4 5 Problem Determination and Service Guide...
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Страница 258: ...Printed in USA GA32 0576 00...