Specifications

SCSI to SATA RAID Subsystem | Administrator’s Manual Accessing the Array: Serial Port, Ethernet, and Access Security | en 39
Bosch Security Systems F.01U.027.802 | V1 | 2006.11
3.3.1 What is the “Disk Reserved Space?”
If you install RAIDWatch using the third installation option, “Stand-alone (on Subsystem),”
user’s configuration data and the manager’s main programs will be kept in a small section of
disk space on a data drive.
After you create a logical drive, all its member drives will have a reserved space. The segre-
gated disk space is called a “Disk Reserved Space.” When configuring a logical drive, the firm-
ware automatically segregates 256MB of disk space from each of the member drives.
The reserved space also allows “Drive Roaming.” Arrays (hard drives included in logical config-
urations) can be readily recognized by another RAID subsystem/RAID controller. This is useful
when hardware faults occur, and you have to replace a faulty subsystem/controller.
3.3.2 Other Concerns
Availability Concern
The reserved space information can be seen during the array creation process or in the “View
and Edit Drives” menu.
Whatever data is put into the reserved space, the firmware will automatically duplicate and
distribute it to the reserved section on every data drive. Even if one hard drive or one logical
drive fails, an exact replica still resides on other member drives.
Web-based Management
When firmware is installed on the stand-alone controller, once properly configured, the sub-
system/controller’s Ethernet port behaves like an HTTP server. This applies to RAIDWatch’s
third installation mode, “Stand-alone (on Subsystem).”
3.3.3 Connecting Ethernet Port:
Use a LAN cable to connect the Ethernet port(s) on the subsystem’s RAID controller unit(s).
Connect the cables between subsystem/controller’s Ethernet port and an Ethernet port from
your local network.
3.3.4 Configuring the Controller
To prepare the subsystem/controller for Ethernet connection:
1. Use a Terminal Emulator to Begin Configuration
Connect the subsystem’s serial port to a PC running a VT-100 terminal emulation pro-
gram or a VT-100-compatible terminal.
Make sure the included null modem is already attached to enclosure serial port or the
management computer’s COM port. The null modem converts the serial signals for con-
necting to a standard PC serial interface. For more details, please refer to the descrip-
tions above in Section 3.1 RS-232C Serial Port and Section 3.2 Communication Parameters .
2. Assign an IP Address to the Ethernet Port
Assign an IP address to the controller Ethernet port and specify the Net Mask and Gate-
way values. Power off your system and then power on again for the configuration to take
effect.
Select "View and Edit Configuration Parameters" from the main menu. Select "Communi-
cation Parameters" -> "Internet Protocol (TCP/IP)" -> press [ENTER] on the chip hardware
address -> and then select "Set IP Address."
You may also use an auto discovery protocol such as DHCP. Simply key in “DHCP” in the
IP address field.