Time Required; Items Required; Verifying Need For Replacement; Recording Critical San384B-2 And San Information - IBM System Storage SAN384B-2 Installation, Service And User Manual

v "Verifying correct operation of system" on page 107
v "Reconnecting the system to the network and fabric" on page 108
v "Verifying correct configuration of the fabric" on page 108
Note: The SAN384B-2 must be removed from the fabric and powered off to
perform this procedure. Contact IBM Support if you have any questions
about whether the chassis requires replacement.

Time required

The chassis replacement takes approximately 3 hours.

Items required

The items are required for the chassis replacement:
v ESD grounding strap
v ESD grounding pads for protecting all blades and WWN cards
v Serial cable and workstation computer with a terminal emulator application
(such as HyperTerminal for Windows systems or TIP for UNIX systems),
required only if serial console session used
v Hydraulic lift (see "Ordering the lift tool" on page 12) that raises a minimum of
140 cm (55 in.) and carries a minimum of 113 kg (250 lb)
v A surface to place the old chassis on, such as a second lift or the pallet originally
provided with the old chassis
v #2 Phillips screwdriver

Verifying need for replacement

Verify that replacement of the chassis is necessary. Ensure that the components are
firmly seated when troubleshooting, and contact IBM support with any questions
about whether the chassis should be replaced. Any of the events might indicate the
need to replace the chassis:
v Visible mechanical damage to the chassis, including damage to sheet metal or
card guides that prevents correct installation of a blade.
v Bent or damaged connectors on the backplane (the surface inside the chassis to
which the blades connect).
v One or more components (such as a power supply, blower assembly, port blade,
control processor blade, core switch blade, or WWN card) do not function
properly even after the component was replaced.
v Intermittent FAULTY codes for blades. Re-seat the blade and visually inspect the
right-hand ejector stiffening rail for possible wear or damage. It is important that
the blade ejector handles not slip out during blade installation. If this happens, it
is usually due to excessive wear or damage to the right-hand ejector stiffening
rail.
v The psShow or fanShow commands continue to show a faulty component even
though the component was replaced.
v The slotShow command continues to show a faulty control processor, core
switch, or port blade even though the blade was replaced.

Recording critical SAN384B-2 and SAN information

All commands must be entered from a CLI session (Telnet or serial) to the active
CP blade unless otherwise indicated.
Chapter 5. Removing and installing components
99