Dell EqualLogic PS4110E PS4110 Hardware Owners Manual - Page 26

Control Module Handling Requirements, About the Standby On/Off Button

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Hardware Owner's Manual 3 Maintaining Control Modules Caution: In a dual control module array, both control modules must be running the same firmware version; otherwise, only one control module will be functional. When you update the array firmware, both control modules are updated to the same firmware version. Group members should run the same firmware version; otherwise, only the functionality common to all versions will be available in the group. See the PS Series Release Notes for information about mixed-firmware groups. If you are adding a second control module, upgrading a control module, or replacing a failed microSD card, contact your PS Series support provider for a replacement. Inform your provider of the current PS Series firmware version on your system. If you are replacing a failed control module, remove the microSD card from the failed control module and install it in the replacement control module. This will make sure that you keep the correct firmware. To display the firmware version running on an array, examine the GUI Member Controllers window or use the following CLI command: member select show controllers If the firmware on a microSD card does not match the firmware running on an array, do not install it. Instead, contact your array support provider. Control Module Handling Requirements Follow these control module handling requirements: • Do not remove an active control module. • Protect control modules from electrostatic discharge. Always wear an electrostatic wrist strap when han- dling a control module. See "Protecting Hardware " on page 2. • Do not remove a control module from an array while the control modules are synchronizing. When syn- chronization completes, a console message will appear. Also, the ACT LED on the secondary control module will be orange. • Do not leave a control module slot empty. In an array with one control module, always attach a blank face plate to the empty control module slot. • Store control modules properly. Store a control module in its original packaging or in an anti-static bag or place the control module on a surface protected from electrostatic discharge. About the Standby On/Off Button The Type 17 control module has a small, recessed button labeled Standby ON/OFF (see Figure 16). The button is recessed to prevent accidental activation. 22

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Hardware Owner's Manual
3 Maintaining Control Modules
Caution:
In a dual control module array, both control modules must be running the same firmware version; other-
wise, only one control module will be functional. When you update the array firmware, both control modules are
updated to the same firmware version.
Group members should run the same firmware version; otherwise, only the functionality common to all versions
will be available in the group. See the PS Series
Release Notes
for information about mixed-firmware groups.
If you are adding a second control module, upgrading a control module, or replacing a failed microSD card,
contact your PS Series support provider for a replacement. Inform your provider of the current PS Series
firmware version on your system. If you are replacing a failed control module, remove the microSD card from
the failed control module and install it in the replacement control module. This will make sure that you keep the
correct firmware.
To display the firmware version running on an array, examine the GUI Member Controllers window or use the
following CLI command:
member select show controllers
If the firmware on a microSD card does not match the firmware running on an array, do not install it. Instead,
contact your array support provider.
Control Module Handling Requirements
Follow these control module handling requirements:
•
Do not remove an active control module.
•
Protect control modules from electrostatic discharge.
Always wear an electrostatic wrist strap when han-
dling a control module.
See "Protecting Hardware " on page 2
.
•
Do not remove a control module from an array while the control modules are synchronizing.
When syn-
chronization completes, a console message will appear. Also, the ACT LED on the secondary control mod-
ule will be orange.
•
Do not leave a control module slot empty.
In an array with one control module, always attach a blank face
plate to the empty control module slot.
•
Store control modules properly.
Store a control module in its original packaging or in an anti-static bag or
place the control module on a surface protected from electrostatic discharge.
About the Standby On/Off Button
The Type 17 control module has a small, recessed button labeled Standby ON/OFF (see
Figure 16
). The button is
recessed to prevent accidental activation.
22