IBM N Series Hardware Manual page 253

Clarification: In target device failover, if the first boot entry fails because of a hardware
error, the system can boot from the second bootable entry. If the second boot entry
fails, the system boots from the third bootable entry, and so on, up to eight distinct
entries. This process provides failover protection by automatically redirecting the boot
device without user intervention.
9. At initialization, Emulex scans for all possible targets or boot devices. If the HBA is
attached to a storage array, the storage device is visible. To view the LUNs, select the
storage array controller. Figure 18-16 shows two arrays within the entry field. Select 01
and press Enter.
Figure 18-16 Boot device entry field panel
Clarification: In device scanning, the adapter scans the fabric for Fibre Channel
devices and lists all the connected devices by DID and WWPN. Information about each
device is listed, including starting LUN number, vendor ID, product ID, and product
revision level.
10.A pop-up window requests entry of the starting LUN number to display. Enter 00 to display
the first 16 LUNS as shown in Figure 18-17.
Figure 18-17 Starting LUN number panel
Chapter 18. Boot from SAN
233