IBM JS20 User Guide - Page 32

System, reliability, guidelines, Handling, static-sensitive, devices

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System reliability guidelines To help ensure proper cooling and system reliability, make sure that: v The ventilation holes on the blade server are not blocked. v Each of the blade bays on the front of the BladeCenter unit has a blade server or filler blade installed. Do not operate the BladeCenter unit for more than 1 minute without a blade server or filler blade installed in each blade bay. v You have followed the reliability guidelines in the documentation that comes with the BladeCenter unit. v You have not installed any small computer system interface (SCSI) devices. The blade server does not support SCSI devices. If you attach SCSI devices to the blade server, these devices will not be recognized or configured, and they will not operate. Handling static-sensitive devices Attention: Static electricity can damage the blade server, the BladeCenter unit, and other electronic devices. To avoid damage, keep static-sensitive devices in their static-protective packages until you are ready to install them. To reduce the possibility of damage from electrostatic discharge, observe the following precautions: v When working on the BladeCenter T unit, use an electrostatic discharge (ESD) wrist strap, especially when you will be handling modules, options, and blade servers. To work properly, the wrist strap must have a good contact at both ends (touching your skin at one end and firmly connected to the ESD connector on the front or back of the BladeCenter T unit). v Limit your movement. Movement can cause static electricity to build up around you. v Handle the device carefully, holding it by its edges or its frame. v Do not touch solder joints, pins, or exposed printed circuitry. v Do not leave the device where others can handle and damage it. v While the device is still in its static-protective package, touch it to any unpainted metal surface of the BladeCenter chassis or any unpainted metal surface on any other grounded rack component in the rack in which you are installing the device for at least 2 seconds. (This drains static electricity from the package and from your body.) v Remove the device from its package and install it directly into the blade server or BladeCenter unit without setting down the device. If it is necessary to set down the device, put it in its static-protective package. Do not place the device on your BladeCenter chassis or on a metal surface. v Take additional care when handling devices during cold weather. Heating reduces indoor humidity and increases static electricity. 20 BladeCenter JS20 Type 8842: Installation and User's Guide

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System
reliability
guidelines
To
help
ensure
proper
cooling
and
system
reliability,
make
sure
that:
v
The
ventilation
holes
on
the
blade
server
are
not
blocked.
v
Each
of
the
blade
bays
on
the
front
of
the
BladeCenter
unit
has
a
blade
server
or
filler
blade
installed.
Do
not
operate
the
BladeCenter
unit
for
more
than
1
minute
without
a
blade
server
or
filler
blade
installed
in
each
blade
bay.
v
You
have
followed
the
reliability
guidelines
in
the
documentation
that
comes
with
the
BladeCenter
unit.
v
You
have
not
installed
any
small
computer
system
interface
(SCSI)
devices.
The
blade
server
does
not
support
SCSI
devices.
If
you
attach
SCSI
devices
to
the
blade
server,
these
devices
will
not
be
recognized
or
configured,
and
they
will
not
operate.
Handling
static-sensitive
devices
Attention:
Static
electricity
can
damage
the
blade
server,
the
BladeCenter
unit,
and
other
electronic
devices.
To
avoid
damage,
keep
static-sensitive
devices
in
their
static-protective
packages
until
you
are
ready
to
install
them.
To
reduce
the
possibility
of
damage
from
electrostatic
discharge,
observe
the
following
precautions:
v
When
working
on
the
BladeCenter
T
unit,
use
an
electrostatic
discharge
(ESD)
wrist
strap,
especially
when
you
will
be
handling
modules,
options,
and
blade
servers.
To
work
properly,
the
wrist
strap
must
have
a
good
contact
at
both
ends
(touching
your
skin
at
one
end
and
firmly
connected
to
the
ESD
connector
on
the
front
or
back
of
the
BladeCenter
T
unit).
v
Limit
your
movement.
Movement
can
cause
static
electricity
to
build
up
around
you.
v
Handle
the
device
carefully,
holding
it
by
its
edges
or
its
frame.
v
Do
not
touch
solder
joints,
pins,
or
exposed
printed
circuitry.
v
Do
not
leave
the
device
where
others
can
handle
and
damage
it.
v
While
the
device
is
still
in
its
static-protective
package,
touch
it
to
any
unpainted
metal
surface
of
the
BladeCenter
chassis
or
any
unpainted
metal
surface
on
any
other
grounded
rack
component
in
the
rack
in
which
you
are
installing
the
device
for
at
least
2
seconds.
(This
drains
static
electricity
from
the
package
and
from
your
body.)
v
Remove
the
device
from
its
package
and
install
it
directly
into
the
blade
server
or
BladeCenter
unit
without
setting
down
the
device.
If
it
is
necessary
to
set
down
the
device,
put
it
in
its
static-protective
package.
Do
not
place
the
device
on
your
BladeCenter
chassis
or
on
a
metal
surface.
v
Take
additional
care
when
handling
devices
during
cold
weather.
Heating
reduces
indoor
humidity
and
increases
static
electricity.
20
BladeCenter
JS20
Type
8842:
Installation
and
User’s
Guide