IBM System Storage DS5020 Installation, User's, And Maintenance Manual page 180

DANGER
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Class 1 Laser Product
Laser Klasse 1
Laser Klass 1
Luokan 1 Laserlaite
Apparell
IEC 825-11993 CENELEC EN 60 825
The speed of the SFP module determines the maximum operating speed of the
Fibre Channel port in which the SFP is installed. For example, a 4 Gbps SFP that is
plugged into a 8 Gbps-capable port will limit the speed of that port to a maximum of
4 Gbps.
Attention:
operating speed of the SFP and to request the correct FRU replacement.
Before you begin, ensure that you wear an anti-static wrist strap.
Use the following procedure to replace a Small Form-factor Pluggable (SFP)
module on the storage subsystem. The SFP module shown in this procedure might
look different from those you are using, but the difference will not affect functionality.
Figure 87 on page 151 illustrates installing an SFP module.
Electrostatic discharge can damage sensitive components. To prevent electrostatic
discharge damage to the storage subsystem, use proper anti-static protection when
handling components.
To replace an SFP module, do the following:
150
IBM System Storage DS5020 Storage Subsystem: Installation, User's, and Maintenance Guide
Some laser products contain an embedded Class 3A or Class 3B laser
diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view directly
with optical instruments, and avoid direct exposure to the beam.
À Laser de Calsse 1
Refer to the FRU option P/N on the SFP to identify the maximum
1. Use the DS Storage Manager client software to print a new storage subsystem
profile.
2. Using the Recovery Guru, identify the failed component that needs to be
replaced.
3. Check the Fault LEDs to locate the failed SFP module. If a fault is detected,
the amber Fault LED is on.
Attention: Potential loss of data access - To prevent loss of access to
data, remove only the SFP module that has a failed status in the storage
management software and has Port Bypass LED lit.
4. Put on anti-static protection.
5. Unpack the new SFP module. Verify that it is the same type of module you are
replacing. If it is not, contact IBM Customer and Technical Support.
Note: The speed of the SFP module determines the maximum operating
speed of the Fibre Channel port in which the SFP is installed. For
example, a 4 Gbps SFP that is plugged into an 8 Gbps-capable port will
limit the speed of that port to a maximum of 4 Gbps.