ASUS GUI RAID Manager: Array Management
4.5
Setting Controller Configuration
4-11
4.5
Setting Controller
Configuration
The
GUI
RAID
Manager
enables
you
to
modify
the
configuration of the disk array controller from your manager
console. You can enable or disable the write-back cache of the
system, set whether or not the controller will reset the SCSI bus
during power-on, stagger the drives’ motor spin-up sequence, set
the baud rate of the controller’s RS-232 port, and modify the
station password.
The following describes the user-configurable parameters:
♦ Write-Back. This parameter allows you to enable or
disable the write-back cache of the system.
The write-
back cache allows write data to be stored in the cache
memory prior to writing to the disk, thereby pipelining the
I/O write process.
♦ SCSI Reset on Power-up. This parameter determines
whether or not the controller will assert SCSI bus reset
during power-on initialization.
♦ Staggered Drive Spin-Up. This parameter determines
whether or not the controller will sequence the drives to
start spinning in succession at five-second intervals.
Enabling staggered drive spin-up can help prevent
overloading the power supply when many drives spin up at
the same time.
♦ RS-232 Baud Rate. This parameter sets the baud rate of
the RS-232 port on the controller. When connecting a host
computer, terminal, or other device (such as a modem)
onto this port, ensure that their baud rates are set
accordingly; otherwise, there will be communication
problems.