Sparcstorage Multipack Units; Environmental Requirements - Sun Microsystems Sun Enterprise 450 Produkthinweise

SPARCstorage MultiPack Units

A compatibility issue exists between the Sun Enterprise 450 server's embedded or
expansion PCI SCSI host bus adapters (HBAs) and some older Fast/Wide SCSI
SPARCstorage™ MultiPack (SMP) units that may contain UltraSCSI (Fast-20)
capable drives. The HBAs available on Sun Enterprise 450 servers default to use
UltraSCSI operation when UltraSCSI devices are present. However, some
SPARCstorage MultiPack units (both 6- and 12-drive versions) do not support
UltraSCSI operation. 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 the pci(4), glm(7D), and
isp(7D) man pages for details.
Note – An alternative workaround method involving a global SCSI option change
through /etc/system would result in loss of UltraSCSI mode on internal system
disk backplanes.
This issue does not exist with 6-drive SPARCstorage MultiPack 2 systems, which are
UltraSCSI capable.

Environmental Requirements

The following information is an addition to the section "Environmental
Requirements" in Appendix B "System Specifications" in the English version of the
Ultra Enterprise 450 Server Owner's Guide (805-0429-10).
Parameter
Operating
Temperature
Altitude
1. With one or more 400-MHz modules installed, above 1500 meters (5000 feet) the supported maximum ambient
operating temperature declines from 40˚C (95˚F) at a rate of 0.8˚C (1.44˚F) per 304.8 meters (1000 feet) up to 3000
meters (10,000 feet).
en-18 Sun Enterprise 450 Server Product Notes • August 2000
Value
1
5˚C to 40˚C (41˚F to 95˚F)—IEC 68-2-1, 68-2-2
0 to 3000 meters (0 to 10,000 feet)—IEC 68-2-40, 68-2-41