A system crash may result if you bring down
a network adapter that is iSCSI-boot enabled. The Windows Server
2003 SP2 operating system prevents you from disabling iSCSI-booted
adapters.
File system access lapses (due to unplugging
the cable) for time critical "keep alive" processes (svchost) may
cause reboots.
Network adapter property changes (for
example, Link Speed) can cause unrecoverable configuration changes,
which may prevent booting.
iSCSI target configuration changes (for
example, Adapter Name) causes boot failure if you do not change the
iSCSI boot configuration as well.
Adapter failover during the software
installation or the boot phase is not possible.
Discovery protocols, such as Internet
Storage Name Service, and Service Location Protocol are not
supported during iSCSI boot installs.