Technical data

14 SMCC Release Notes Supplement Solaris 2.6 • September 1997
Note – All sun4u architectures support booting from larger partitions.
One related bug (4023466) reports a problem with re-preinstall where the boot
image for large disks creates root partitions greater than 2-GBytes. System
Administrators are cautioned not to use re-preinstall on sun4c, sun4d, and
sun4m systems with large root disks (4-GBytes and greater).
SPARC PCI Systems — panic: BAD TRAP During
Boot (4065612)
Some SPARC PCI system configurations may panic while booting because of a
problem with the glm(7D) SCSI host adapter driver.
Workaround: Contact your authorized Sun support provider regarding the
availability of a patch.
SPARC PCI Systems — Panic on SPARCstorage
Multipack Units (4061277)
A compatibility issue exists between the embedded or expansion PCI SCSI host bus
adapters (HBA) and use of newer SPARCstorage MultiPack (SMP) units that may
contain UltraSCSI (Fast-20) capable drives. The HBAs available on SPARC PCI
systems default to use UltraSCSI operation when UltraSCSI devices are present,
which is not supported by the MultiPack (either 6- or 12- drive version). Attempting
to use such a configuration can lead to reduced SCSI bus performance and potential
system panic.
Workaround: Prior to using this configuration, disable the UltraSCSI mode for each
controller instance to which a SMP is attached. Refer to pci(4), glm(7D) and
isp(7D) for details.
Important: An alternate workaround method involving a global SCSI option change
through /etc/system would result in loss of UltraSCSI mode on internal system
disk backplanes.
Note – This issue does not exist with SPARCstorage MultiPack 2 systems, which are
UltraSCSI capable.