Dot Hill Systems SANnet II 200, Инструкция по установке, эксплуатации и обслуживанию

Страница: 57 / 186

Chapter 4 Connecting Your SCSI Array 4-25
Note –
When you configure a host channel as a drive channel, the primary ID (PID) is
set to 8 and the secondary ID (SID) is set to 9. To avoid SCSI ID conflicts, change the
newly assigned drive channel PID to 6 and the SID to 7 using the firmware
application. For details, refer to the
SANnet II Family RAID Firmware User’s Guide .
3. Power on the expansion units.
For details on the power on sequence, see “Power-On Sequence” on page 4-30.
4. Power on the RAID array.
4.11 Establishing Communications With An Array
Before you can configure an array, you must establish one or more communication
links between at least one host and an array. You can use any combination of the
array’s RS-232 COM (serial) port, the Ethernet port, and the in-band data connection
between the host and the array.
■
A direct RS-232 port connection guarantees that a host can communicate with a
RAID array even if the array’s IP address changes or is unknown, or if the TCP/IP
network suffers a temporary outage. See “Configuring a Host COM Port to Connect
to a RAID Array” on page 4-26 for more information.
■
SANnet II Family arrays ship with the Dynamic Host Configuration Protocol
(DHCP) TCP/IP network support protocol enabled. If your network uses a DHCP
server to dynamically and automatically allocate IP addresses to attached devices, as
soon as the RAID array is powered up an IP address is assigned to it. You can use
this IP address to monitor and manage the array’s firmware through telnet sessions.
See “Setting Up Out-of-Band Management Over Ethernet” on page 4-28 for
information about setting up a telnet session.
■
A fixed IP address enables you to use telnet or other out-of-band management
sessions to manage the array with no risk of a DHCP server changing its IP address.
See “Manually Setting a Fixed IP Address” on page 4-27 for information.
When the array is first powered up, the default IP address setting uses the IP address
assigned by a DHCP server. If the RAID array is connected to a network with an active
DHCP server, you can determine the IP address assigned to the array in several ways:
■
If you have access to the controller firmware, from the Main Menu choose
“Configuration Parameters
→
Communication Parameters
→
Internet Protocol
(TCP/IP).” If the RAID controller is not on a network connected to an active DHCP
server, “DHCP Client” is displayed rather than a DHCP-assigned IP address. Refer
to the “Configuration Parameters” chapter in the
SANnet II Family RAID Firmware
User’s Guide for more information.
■
Use the
show network-parameters
CLI command. Refer to the SANscape CLI
User’s Guide for more information. If the RAID controller is not on a network
connected to an active DHCP server, an IP address of 0.0.0.0 is displayed. Refer to
the
SANscape CLI User’s Guide for more information.