Dell EqualLogic PS6610E EqualLogic PS6610 Storage Arrays Hardware Owners Manua - Page 25

PS6610 Hardware Owner's Manual 3 Control Module Maintenance Control module failover occurs automatically, and if iSCSI initiators reconnect to the group IP address, application I/O can continue without user intervention. Control Module Firmware Maintenance Each control module has a microSD card running the array firmware. You should run the latest firmware version to take advantage of new product features and enhancements. 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. You must update the controller with the older version firmware to the same version as the active controller before you update the member to a later 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 mixedfirmware 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, which is in most cases Dell EqualLogic Technical Support. 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. Installing the card ensures that you keep the correct firmware. See Replace the MicroSD Card on page 25. To display the firmware version running on an array, examine the GUI group member Controllers tab 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 handling a control module. See Hardware Protection on page 6. • Do not remove a control module from an array while the control modules are synchronizing. When synchronization 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 faceplate to the empty control module slot. • Store control modules properly. Store a control module in its original packaging or in an antistatic bag or place the control module on a surface protected from electrostatic discharge. About the Standby On/Off Button The Type 18 control module has a small, recessed button labeled STANDBY ON/OFF located next to the management port (see Figure 13). The button is recessed to prevent accidental activation. 19