6. Copy the appropriate release notes to your system disk. In this
example, obtain the firmware release notes for the AlphaServer
DS20 from the Version5.6 AlphaFirmware Update CD-ROM:
#cp /mnt/doc/ds20_v56_fw_relnote.txt ds20-rel-notes
7. Unmount the CD-ROM drive:
#umount /mnt
8. Print the release notes.
4.3 TruCluster Server Hardware Installation
Member systems may be connected to a shared SCSI bus with a peripheral
component interconnect (PCI) SCSI adapter. Before you install a PCI SCSI
adapter into a PCI slot on a member system, ensure that the module is at
the correct hardware revision.
The qualification and use of the DS-DWZZH-series UltraSCSI hubs in
TruClusterServer clusters allowsthe PCI hostbus adapters tobe cabled
into a cluster in two different ways:
•Preferred method with radial connection to a DWZZH UltraSCSI hub
and internal termination: The PCI host bus adapter internal termination
resistor SIPs are not removed. The host bus adapters and storage
subsystems are connected directly to a DWZZH UltraSCSI hub port.
There can be only one member system connected toa hub port.
The use of a DWZZHUltraSCSI hub in a TruCluster Server cluster is
preferred because it improves the reliability to detect cable faults.
•Old method with external termination: Shared SCSI bus termination is
external to the PCI host adapters. This is the old method usedto connect
a PCI host adapter to the cluster; remove the adapter termination
resistor SIPs and install a Y cable and an H879-AA terminator for
external termination. This allows the removal of a SCSI bus cable from
the host adapter without affecting SCSI bus termination.
This method (discussd in Chapter 9 and Chapter 10) may be used with or
without a DWZZH UltraSCSI hub. When used with anUltraSCSI hub,
there may be more than one member system on a SCSI bus segment
attached to a DS-DWZZH-03 hub port.
The following sections describe how to install the KZPBA-CB
PCI-to-UltraSCSI differential host adapter and configure them into
TruClusterServer clusters using thepreferred method of radial connection
with internal termination.
TruClusterServer System ConfigurationUsing UltraSCSI Hardware 4–5