8-30Precautions If you remove a PCI module during operation, dual configuration of its internal hard diskswill be cancelled. If you mount the module again, the dual configuration will be restoredautomatically. However, do not perform a system shutdown or remove any of the PCImodules before the dual configuration is completed. Otherwise, hard disk data could becorrupted. Removing the primary (active) module will cause unexpected trouble. Be sure to removethe secondary (inactive) module. When the secondary BMC is not in synchronous condition, removing the PCI module onthe primary BMC will lose the SG data (system data). If one of the STATUS LEDs isblinking in red, do not remove the PCI module associated with another STATUS LED.When DC power is off:BMC#1 BMC#2 StatusOff (Primary) Blinking in red(Secondary)(At 1-second intervals)Do not remove the PCI module on PrimaryBMC side.BMC Sync disabled.Off (Primary) Illuminates red(Secondary)Do not remove either PCI modules.During BMC DUMP.Off (Primary) Blinking in red(Secondary)(At 0.5-second intervals)Do not remove either of the PCI modules orcontrol the AC/DC power before the LEDstops blinking.When DC power is on:BMC#1 BMC#2 StatusBlinking ingreen(Primary)(At 1-secondintervals)Blinking in red(Secondary)(At 1-second intervals)Do not remove the PCI module on PrimaryBMC side.BMC Sync disabled.Blinking ingreen(Primary)(At 1-secondintervals)Illuminates red(Secondary)Do not remove either PCI modules.During BMC Sync.Blinking ingreen(Primary)(At 1-secondintervals)Blinking in red(Secondary)(At 0.5-second intervals)Do not remove either of the PCI modules orcontrol the AC/DC power before the LEDstops blinking. When you remove a PCI module, the system will be powered off automatically. If there isa CD-ROM in the drive, eject it before removing the module. When you insert a PCI module while the system is off, make sure that the newly insertedPCI module’s BMC status lamp is off and then press the power switch. When replacing a PCI module and a CPU module, replace one module and wait until dualconfiguration is established to replace the other module. If you replace the both modulessimultaneously, dual configuration of either CPU modules or PCI modules may fail. (See
