Owners Manual

PS4210 Hardware Owner's Manual
3 Maintaining Control Modules
6. If the array was shut down, turn on power to the array.
7. Make sure the control module is operational. See Interpreting Control Module LEDs on page 16.
The Type 19 control module contains an integral battery assembly used in the cache-to-flash feature of the
control module. If the Group Manager GUI or CLI indicates a battery failure, the battery must be replaced.
If two control modules are installed in the array, but only one is shown in the GUI (or CLI), make sure that
you have allowed enough time (minimum of 5 minutes) for the two control modules to boot and synchronize.
When synchronization completes, a message appears on the serial console (if connected), and the ACT LED
on the secondary module is illuminated amber.
If the GUI (or CLI) still shows only one control module after appropriate time has elapsed, the controller
might not be properly installed. Try to remove the module by rotating the black lever and reinsert the module
into the array chassis. Ensure that the face of the contoller is even with the controller already installed in the
array.
After reinstalling the control module, if both control modules still do not appear in the GUI (or CLI), contact
your support provider.
If you interrupt the synchonization process, you might corrupt the control module's internal firmware, and the
control module will no longer function properly.
Replacing the MicroSD Card
Each control module includes a microSD card that contains the PS Series firmware.
If a control module fails, you will need to remove the microSD card from the failed control module and install
the card in the replacement control module. Using the card from the failed control module ensures that the new
control module is running the same firmware and configuration as the other control module in the array.
Before you begin the procedure to replace a microSD card:
• Review Removing a Control Module on page 22 for information about removing and replacing a control
module.
• Attach an electrostatic wrist strap, as described in Protecting Hardware on page 1.
MicroSD Card Replacement Procedure
Use the following procedure for replacing the microSD card in your control module:
1. Remove the control module from the array, as described in Removing a Control Module on page 22.
2. Remove the SD card from the control module, as described in Removing the MicroSD Card on page 24.
3. Install the replacement SD card in the control module, as described in Inserting the MicroSD Card on page
25.
4. Insert the control module into the array, as described in Installing a Control Module on page 23.
Removing the MicroSD Card
Callout 1 in Figure 20 shows the location of the microSD card.
To reduce the risk of losing or damaging the microSD card, do not remove it until you are ready to install it in the
replacement control module.
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