IBM DS3950, Руководство пользователя и инструкция по установке

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on the side of the ESM fit into the notches on the sides of the ESM bay. After
the guide pins fit into the notches and ESM fits snugly into the bay, push the
lever upward or downward 90° to fully latch the ESM into place, depending
on whether you are inserting the ESM into the right or left ESM bay.
Attention: The left and right ESMs are seated in the EXP395 chassis in
opposite orientations. If you cannot fully insert the ESM into the ESM bay, flip
it 180° and reinsert it. Make sure that the levers lock into place in the storage
expansion enclosure chassis.
12. Reinsert the SFP modules and reconnect the fibre-channel cables to their
original locations.
13. Check the Power and Fault LEDs on the new ESM for the following:
v
If the Power LED is off, the ESM might not be inserted correctly.
v
If the Fault LED is lit, if the Power LED is off, or if any other Fault LEDs
are lit, see “Solving problems” on page 93 or call IBM Support.
14.
Check the input and output bypass LEDs at both ends of the reconnected
cables. If the input and output bypass LEDs are lit, reconnect the cables and
SFP modules.
15. Use the DS Storage Manager Client to open a Subsystem Management
window to the DS3950 on which the EXP395 ESM was replaced. click the
Recovery Guru or the Environment Status icon of the drive expansion
enclosure on which you replaced the ESM.
If there is an ESM firmware mismatch, wait up to 15 minutes for the Client
program to perform ESM code synchronization.
Note: The ESM firmware download will take up to 5 minutes in typical
workload condition.
If there is no ESM firmware mismatch, the upgrade process is complete.
16. If there is an ESM firmware mismatch, you must make corrections to match
the ESM firmware by using the ESM firmware download function in the DS
Storage Manager Client Subsystem Management window.
Replacing an SFP module
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 2-Gbps SFP that is
plugged into a 4-Gbps-capable port will limit the speed of that port to a maximum
of 2 Gbps.
Attention:
v
Refer to the FRU option P/N on the SFP to identify the maximum operating
speed of the SFP and to request the correct FRU replacement.
v
The EXP395 is not supported at 2 Gbps data rate operation attached to the
DS3950; therefore, 2 Gbps SFPs are not supported in the EXP395.
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 expansion enclosure. The SFP module shown in this
procedure might look different from those you are using, but the difference will
not affect functionality. Figure 38 on page 86 illustrates installing an SFP module.
Chapter 5. Installing and replacing components
85