F5 8400, User Manual

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Maintaining the IP Application Switch Platform
Platform Guide: 8400 and 8800 5 - 1
Reviewing maintenance options and operations
The IP application switch platform contains several field replaceable units
(FRUs). The FRUs provide the ability to replace parts of the system without
replacing the complete system. The FRUs currently available for this
platform are:
• Fan tray and filter replacement
• Power supply replacement
• Drive tray replacement
Changing the fan tray and filter
The 8400/8800 platforms have a removable fan tray and filter. You can
change or replace the fan tray and filter as part of the routine maintenance of
the unit, or in the event of a fan failure. The air filter in the BIG-IP unit is
designed to remove airborne contaminants and requires replacement during
the life of the product. The fans in the fan tray run constantly while the unit
is on. Over time, the fans will wear out, requiring you to replace the fan tray.
Note
We recommend that you inspect the fan tray and filter every four months.
Replace the fan tray if any of the fans are not functional. Replace the filter
when you replace the fan tray.
Replacing the fan tray and filter
You do not need special tools to replace the fan tray and filter. You can
perform this maintenance while the unit is running.
However, we recommend that you perform the fan tray and filter
replacement only on the standby unit in a redundant system while the unit is
powered down. After you install the fan tray and filter in the standby
system, power up the unit, then force the active system to fail over and
install the fan tray and filter replacement in the other unit of the redundant
system.
To replace the fan tray and filter
1. Start by opening the front panel of the BIG-IP unit running in
standby mode.
2. The fan tray is held on the chassis by a knurled fastener. Loosen the
knurled fastener by turning it counter-clockwise.
3. Pull the old fan tray and filter out of the system.