IBM TotalStorage SAN140M, Installation And Service Manual

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SAN140M Installation and Service Manual 210
4. After completing a replacement procedure, clear the event code
reporting the failure and the event code reporting the recovery
from the Event Log (at the management server or EFCM Basic
Edition interface), and turn off the amber system error light-
emitting diode (LED) at the director front bezel.
Removing and replacing FRUs
This section describes procedures to remove and replace director
FRUs, along with a list of tools required to perform each procedure.
In addition, the section provides:
• ESD information
• A list of concurrent FRUs. Concurrent FRUs can be removed and
replaced while the director is powered on and operational.
• A list of nonconcurrent FRUs. Nonconcurrent FRUs can only be
removed and replaced after the director is powered off.
See Chapter 6, Illustrated parts breakdown for FRU locations and part
numbers.
ESD information
Follow all ESD procedures, DANGER statements, and CAUTION
statements. When removing and replacing FRUs, always connect a
grounding cable to the director chassis and wear an ESD wrist strap.
ATTENTION!
To avoid causing machine errors or damage while working on
the director, follow ESD procedures by connecting a grounding cable to the
director chassis and wearing an ESD wrist strap.
The ESD grounding points for the front of the chassis are located at
the right and left sides of the chassis (
Figure 69 ). Touch the chassis
once before performing any maintenance action, and once each
minute while removing or replacing FRUs.
If the director is not connected to facility power (and therefore not
grounded), connect the ESD wrist strap to an approved bench
grounding point instead of the chassis.
The ESD grounding point for the rear of the chassis is located next to
the maintenance port (
Figure 69 ). Touch the chassis once before
performing any maintenance action, and once each minute while
removing or replacing FRUs.