Dhcp Option 17, Root Path; Dhcp Option 43 (Adding Vendor Options) - Dell QMD8262-k User Manual

5–Boot Configuration
DHCP Boot Setup (iSCSI)
8. When presented with the various Boot Modes, select DHCP using
VendorID and then press ENTER.
9. Select DHCP Boot Settings and then press ENTER.
10. On the DHCP Boot Settings screen, select Vendor ID and then press
ENTER.
11. Enter the Vendor ID (class) that you defined earlier in the DHCP server
configuration steps and then press ENTER.
The vendor ID name is case sensitive and is limited to 10 characters in
length.
12. Press ESC until the Configuration Settings Modified screen is displayed.
13. Select Save changes and then press ENTER.
14. If all components are configured correctly, you can either:


The adapter can now obtain all of its IP and initiator and target information from
the DHCP server.

DHCP Option 17, Root Path

DHCP option 17 specifies the path name that contains the client's root disk. The
path is formatted as a character string consisting of characters from the network
virtual terminal (NVT) ASCII character set. The data is formatted as a string using
the DHCP Root Path Option (Option 17):
"iscsi:"<servername | serveripaddress>":"<protocol>":"<port>":"
<LUN>":"<targetname>

DHCP Option 43 (Adding Vendor Options)

Define a vendor class called "QLogic" as part of the "Default User Class" and then
add the iSCSI specific information. Two of these options—201 and 202—contain
iSCSI boot target information for primary and secondary targets, respectively.
BIOS must parse the Vendor Specific Information buffer for the Primary Boot
Target (Option 201). The third option, iSCSI Initiator (Option 203), contains the
iSCSI initiator IQN information.
DHCP Vendor Class Option 201, Primary Boot Target IQN and Boot
Parameters
Format the data as a string using the DHCP vendor-defined Primary Boot Target
IQN and Boot Parameters Option (Option 201):
"iscsi:"<serveripaddress>":"<protocol>":"<port>":"<LUN>":"
<targetname>
Reinitialize the adapter from the BIOS
Reboot the server
220 CU0354602-00 L