Dell EqualLogic PS4210 Hardware Owner's Manual page 27

PS4210 Hardware Owner's Manual
You will also need to temporarily remove a control module when you want to replace its microSD card. Refer to
Replacing the MicroSD Card on page 24
You can partially or completely remove a control module without shutting down the array if the remaining
control module has at least one connected and functioning network interface. The procedures for doing this type
of control module replacement are described in the section that follows.
When you remove a control module, wear an electrostatic wrist strap, as described in
page 1, and be sure to place it on a surface that is protected from electrostatic discharge.
Control Module Replacement Procedures
This section describes the procedures for removing and replacing one or both control modules in your PS Series
array. The following replacement scenarios are covered:
• Replacing the secondary control module in an array
• Replacing the active control module in an array
• Replacing both control modules in an array
Replacing the Secondary Control Module
If the array is fully powered up and functioning, use the following procedure to replace the secondary control
module in the array:
1. Remove the control module from the array, as described in
2. Remove the SD card from the control module, as described in
3. Install the SD card in the replacement control module, as described in
25.
4. Remove and swap the battery from the existing control module to the replacement control module, as
described in Battery Replacement on page
5. Insert the replacement control module into the array, as described in
Replacing the Active Control Module
Use the following procedure to replace the active control module in the array:
1. Use the command to make the active control module secondary.
restart
2. Remove and swap the battery from the existing control module to the replacement control module, as
described in Battery Replacement on page
3. Install the SD card in the replacement control module.
4. Replace the control module that is now secondary (was active before the restart), as described in
the Secondary Control Module on page
Replacing Both Control Modules
Use the following procedure to replace both control modules in the array:
1. Replace the secondary control module first, as described in
page 21.
for information about replacing the microSD card.
Removing a Control Module on page
26.
26.
21.
Replacing the Secondary Control Module on
3 Maintaining Control Modules
Protecting Hardware on
Removing the MicroSD Card on page
Inserting the MicroSD Card on page
Installing a Control Module on page
22.
24.
23.
Replacing
21