Riverbed® Steelhead® RiOS® Application Installation and Getting Started Guide 2010-10

C-7
Hardware Components
Replacing or Removing a Module
Shutting down the Extended Services zl Module ensures that the System
Platform is shut down properly and does not experience a power failure when
the module is removed.
It is possible to “hot-swap” one module for another of the same type; that is,
replace one module with another while the HP zl switch is still powered on,
without interrupting the operation of the rest of the switch ports. If the
modules are not the same type, the switch will need to be rebooted and may
need to be reconfigured.
Caution A 5-second delay is mandatory between removing a module, and either re-
installing it, or replacing it with another.
To replace one module with another, or to remove a module without replacing
it, use the following procedure:
1. Unscrew the retaining screws enough to disconnect them from the
threaded holes in the switch.
2. Using the extractor handles pull the module out from the slot.
3. Do one of the following:
• If installing another module of the same type, go to “Installation Steps”
on page 2-11 and begin with step 2. A switch reset is not required. The
current configuration in that slot will apply to the new module.
• If another module will not be installed in the slot (that is, the slot will
be left empty), re-install the cover plate over the slot opening.
Caution For proper cooling and reduction of electromagnetic emissions, ensure that
a slot cover is installed on any unused slot. In an operational chassis, an
unused slot should be covered if it is not used for more than 2 minutes.