HP StorageWorks XP10000 Disk Array - Manual (Page 44)

iSCSI port and iSNS server settings
You must make settings on iSCSI ports (and iSNS servers, if necessary) when configuring iSCSI
environments. Use LUN Manager to specify the following items when configuring iSCSI environments. For
instructions, see Defining LU paths and Making settings on iSCSI ports and iSNS servers .
• IP address: You must specify the iSCSI port's IP address when configuring iSCSI environments.
In LUN Manager, the initial value of the iSCSI port's IP address is 192.168.0.xxx, where xxx
is the iSCSI port's location.
• Subnet mask: You must specify a subnet mask when configuring iSCSI environments. A subnet
mask is a value used for obtaining a network address from an IP address. In LUN Manager, the
subnet mask's initial value is 255.255.255.0.
• Gateway address: If a gateway is used, specify the gateway address. A gateway is hardware
connecting networks with different protocols.
• iSCSI name: You must assign iSCSI names to iSCSI ports when configuring iSCSI environments.
iSCSI names are used to uniquely identify each iSCSI node. iSCSI nodes are devices that use the
iSCSI protocol for communication (for example, iSCSI ports in arrays, host bus adapters in host
servers, and switching hubs for network relaying).
iSCSI names must be specified in either of the following formats:
• eui format:
An IEEE 64-bit Extended Unique Identifier used to specify an iSCSI name. The iSCSI name
begins with eui. and is followed by the ID found by the vendor in EUI-64 format similar to the
World Wide Name.
Example: eui.02004567A425678D
• iqn format:
The iSCSI Qualified Name format used to specify an iSCSI name. For more information about
specifying iSCSI names using this format, see the iSCSI-related documentation.
If a host is connected to an iSCSI port, LUN Manager automatically displays the iSCSI name in iqn
format. iSCSI names can include 0 (zero) to 9, and a to f (letters are case-insensitive).
Example: iqn.2006.01.com.hp:iscsi-r500:model-xxx:sn-xxxxxx:lun00
The length of an iSCSI name must be 20 characters in eui format, and up to 223 characters in iqn
format. iSCSI names can include letters, numbers, periods (.), hyphens (-), and colons (:); but cannot
include double-byte characters. iSCSI names are case-insensitive.
• iSCSI alias: An iSCSI alias is a nickname you assign to an iSCSI name. Assigning iSCSI aliases is
optional, but helpful, when managing and identifying iSCSI targets.
It is difficult to identify iSCSI targets by iSCSI names because an iSCSI name consists of numerous
characters and is hard to remember. If you assign an iSCSI alias that is brief and easy to remember,
you can easily and quickly identify iSCSI targets.
The length of an iSCSI alias must be up to 32 characters. iSCSI aliases can include letters, numbers,
periods (.), hyphens (-), and colons (:); but cannot include double-byte characters. iSCSI aliases are
case-sensitive; for example, MyPort and myport are different iSCSI aliases.
• Port number: You must assign part numbers to iSCSI ports when configuring iSCSI environments.
Use LUN Manager to specify a decimal port number within the range of 1 to 65535. A port
number's initial value is 3260.
• Keep-alive timer: You must specify the Keep-alive timer when configuring iSCSI environments. The
Keep-alive timer is used when there is a connection between an iSCSI port and another iSCSI
node. For example, if the keep-alive timer is set to 60 seconds, the array checks whether packet
communications occurred between an iSCSI port and another iSCSI node (such as a host bus
adapter or switching hub) every 60 seconds.
Use LUN Manager to specify a value within the range of 0 to 64,800 seconds. The Keep-alive timer's
initial value is 60 seconds.
44 Overview of LUN Manager