Precautions - NEC Express 5800/320Lc User Manual

8-28 System Upgrade

Precautions

If you remove a PCI module during operation, dual configuration of its internal hard disks will
be cancelled. If you mount the module again, the dual configuration will be restored
automatically. However, do not perform a system shutdown or remove any of the PCI modules
before the dual configuration is completed. Otherwise, hard disk data could be corrupted.
Removing the primary (active) module will cause unexpected trouble. Be sure to remove the
secondary (inactive) module.
When the secondary BMC is not in synchronous condition, removing the PCI module on the
primary BMC will lose the SG data (system data). If one of the STATUS LEDs is blinking in
red, do not remove the PCI module associated with another STATUS LED.
When DC power is off:
BMC#1
Off (Primary)
Off (Primary)
Off (Primary)
When DC power is on:
BMC#1
Lit in green
(Primary)
Lit in green
(Primary)
Lit in green
(Primary)
When you remove a PCI module, the system will be powered off automatically. If there is a
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 inserted PCI
module's BMC status LED is off and then press the power switch.
When replacing a PCI module and a CPU module, replace one module and wait until dual
configuration is established to replace the other module. If you replace the both modules
simultaneously, dual configuration of either CPU modules or PCI modules may fail. (See
Chapter 7 "Troubleshooting".)
To add a backup module, stop the PCI module to connect and then connect the SCSI cable.
The MTBF value of PCI modules, Ethernet adaptor, and SCSI adaptor (including option
boards) are cleared by inserting or removing live line of a PCI module.
BMC#2
Blinking in red
(Secondary)
(At 1-second intervals)
Lit in red (Secondary)
Blinking in red
(Secondary)
(At 0.5-second intervals)
BMC#2
Blinking in red
(Secondary)
(At 1-second intervals)
Lit in red (Secondary)
Blinking in red
(Secondary)
(At 0.5-second intervals)
Status
Do not remove the PCI module on Primary
BMC side.
BMC Sync disabled.
Do not remove either of the PCI modules.
During BMC Sync.
Do not remove either of the PCI modules or
control the AC/DC power before the LED
stops blinking.
Status
Do not remove the PCI module on Primary
BMC side.
BMC Sync disabled.
Do not remove either of the PCI modules.
During BMC Sync.
Do not remove either of the PCI modules or
control the AC/DC power before the LED
stops blinking.