10–Configuring Fibre Channel Over Ethernet
FCoE Boot from SAN
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Provisioning Storage Access in the SAN
Storage access consists of zone provisioning and storage selective LUN
presentation, each of which is commonly provisioned per initiator WWPN. Two
main paths are available for approaching storage access:
Pre-provisioning
With pre-provisioning, note the initiator WWPN and manually modify fabric zoning
and storage selective LUN presentation to allow the appropriate access for the
initiator.
The initiator WWPN is shown at the bottom of the FCoE boot target configuration
window.
The initiator WWPN can also be directly inferred from the FIP MAC address
associated with the interface(s) planned for boot. Two MAC addresses are printed
on stickers attached to the SFP+ cage on your adapter. The FIP MAC ends in an
odd digit. The WWPN is 20:00: + <FIP MAC>. For example, if the FIP MAC is
00:10:18:11:22:33, then the WWPN will be 20:00:00:10:18:11:22:33.
CTRL+R Method
The CTRL+R method allows you to use the boot initiator to bring up the link and
log into all available fabrics and targets. Using this method, you can ensure that
the initiator is logged into the fabric or target before making provisioning changes,
and as such, can provision without manually typing in WWPNs.
1.
Configure at least one boot target through CCM as described in
Cavium Multi-Boot Agent for FCoE Boot” on page 139
2.
Allow the system to attempt to boot through the selected initiator.
After the initiator boot starts, it begins DCBX sync, FIP Discovery, Fabric
Login, Target Login, and LUN readiness checks. As each of these phases
completes, if the initiator is unable to proceed to the next phase, MBA
presents the option to press CTRL+R.
3.
Press the CTRL+R keys.
After CTRL+R has been activated, the boot initiator will maintain a link in
whatever phase has most recently succeeded and allow you time to make
the necessary provisioning corrections to proceed to the next phase.
NOTE
The default WWPN is 20:00: + <FIP MAC>. The default WWNN is 10:00: +
<FIP MAC>.