This chapter describes how to prepare the systems for a TruCluster Server cluster when there is a need to access:
Shared SCSI storage using external termination.
Non-UltraSCSI RAID array controllers (HSZ40 and HSZ50) using a radial connection.
This chapter does not provide detailed information about installing devices; it describes only how to set up the hardware in the context of the TruCluster Server product. Therefore, you must have the documentation that describes how to install the individual pieces of hardware. That documentation typically arrives with the hardware.
All systems in the cluster must be connected via the Memory Channel cluster
interconnect.
Not all members must be connected to a
shared SCSI bus.
We recommend placing the clusterwide root
(/),
/usr, and
/var
file systems, all member boot disks, and the
quorum disk (if provided) on shared SCSI buses.
All
configurations covered in this manual assume the use of a shared SCSI bus.
Before proceeding further, review
Section 4.1,
Section 4.2, and the first two
paragraphs of
Section 4.3.
9.1 TruCluster Server Hardware Installation Using PCI SCSI Adapters
The following sections describe how to install the KZPSA-BB or KZPBA-CB host bus adapters and configure them into TruCluster Server clusters using both methods of termination -- the preferred method of radial connection with internal termination used with the HSZ40 and HSZ50 RAID array controllers, and the old method of external termination.
The descriptions are based on the assumption that you will configure and cable your storage subsystems as described in Chapter 10 after installing the host bus adapters, Memory Channel adapters, and network adapters. When the system hardware (KZPSA-BB or KZPBA-CB host bus adapters, Memory Channel adapters, hubs (if necessary), cables, and network adapters) have been installed, you can connect your host bus adapter to the UltraSCSI hub or storage subsystem.
Follow the steps in Table 9-1 to start the TruCluster Server hardware installation procedure. You can save time by installing the Memory Channel adapters, redundant network adapters (if applicable), and KZPSA-BB or KZPBA-CB SCSI adapters all at the same time.
Follow the directions in the referenced documentation, or the steps in the referenced tables for the particular SCSI host bus adapter, returning to the appropriate table when you have completed the steps in the referenced table.
After you complete installing host bus adapters, Memory Channel adapters, and network adapters, see Chapter 10 and connect your cluster member systems to shared storage.
Caution
Static electricity can damage modules and electronic components. We recommend using a grounded antistatic wrist strap and a grounded work surface when handling modules.
Table 9-1: Configuring TruCluster Server Hardware for Use with a PCI SCSI Adapter
| Step | Action | Refer to: |
| 1 | Install the Memory Channel modules, cables, and hubs (if a hub is required). | Chapter 5 [Footnote 66] |
| 2 | Install Ethernet or FDDI network adapters. | User's guide for the applicable Ethernet or FDDI adapter, and the user's guide for the applicable system |
| Install ATM adapters if using ATM. | See the documentation that came with the ATM adapter | |
| 3 | Install a KZPSA-BB PCI SCSI adapter or KZPBA-CB UltraSCSI adapter for each shared SCSI bus in each member system: | -- |
| Internally terminated host bus adapter for radial connection to DWZZH UltraSCSI hub: | Section 9.1.1 and Table 9-2 | |
| Externally terminated host bus adapter: | Section 9.1.2 Table 9-3 |
9.1.1 Radial Installation of a KZPSA-BB or KZPBA-CB Using Internal Termination
Use this method of cabling member systems and shared storage in a TruCluster Server cluster if you are using a DWZZH UltraSCSI hub. You must reserve at least one hub port for shared storage.
The DWZZH-series UltraSCSI hubs are designed to allow more separation between member systems and shared storage. Using the UltraSCSI hub also improves the reliability of the detection of cable faults.
A side benefit is the ability to connect the member systems' SCSI adapter directly to a hub port without external termination. This simplifies the configuration by reducing the number of cable connections.
A DWZZH UltraSCSI hub can be installed in:
A StorageWorks UltraSCSI BA356 shelf (which has the required 180-watt power supply).
A non-UltraSCSI BA356 that has been upgraded to the 180-watt power supply with the DS-BA35X-HH option.
An UltraSCSI hub only receives power and mechanical support from the storage shelf. There is no SCSI bus continuity between the DWZZH and storage shelf.
The DWZZH contains a differential to single-ended signal converter for each hub port (sometimes referred to as a DWZZA on a chip, or DOC chip). The single-ended sides are connected together to form an internal single-ended SCSI bus segment. Each differential SCSI bus port is terminated internal to the DWZZH with terminators that cannot be disabled or removed.
Power for the DWZZH termination (
termpwr) is supplied by the host bus
adapter or RAID array controller connected to the DWZZH
port.
If the member system or RAID array controller is powered
down, or the cable is removed from the host bus adapter, RAID array
controller, or hub port, the loss of
termpwr
disables the hub port without
affecting the remaining hub ports or SCSI bus segments.
This is
similar to removing a Y cable when using external termination.
Note
The DS-DWZZH-03/05 UltraSCSI hubs cannot be connected to a StorageWorks BA35X storage shelf because the storage shelf does not provide termination power to the hub.
The other end of the SCSI bus segment is terminated by the KZPSA-BB or KZPBA-CB onboard termination resistor SIPs, or a trilink connector/terminator combination installed on the HSZ40 or HSZ50.
The KZPSA-BB PCI-to-SCSI bus adapter:
Is installed in a PCI slot of the supported member system (see Section 2.3.2).
Is a fast, wide differential adapter with only a single port, so only one differential shared SCSI bus can be connected to a KZPSA-BB adapter.
Operates at fast or slow speed and is compatible with narrow or wide SCSI. The fast speed is 10 MB/sec for a narrow SCSI bus and 20 MB/sec for a wide SCSI bus. The KZPSA-BB must be set to fast speed for TruCluster Server.
Note
You may have problems if the member system supports the
bus_probe_algorithmconsole variable and it is not set tonew. See Section 2.3.2.
The KZPBA-CB UltraSCSI host adapter:
Is a high-performance PCI option connecting the PCI-based host system to the devices on a 16-bit, ultrawide differential SCSI bus.
Is a single-channel, ultrawide differential adapter.
Operates at the following speeds:
5 MB/sec narrow SCSI at slow speed
10 MB/sec narrow SCSI at fast speed
20 MB/sec wide differential SCSI
40 MB/sec wide differential UltraSCSI
Note
Even though the KZPBA-CB is an UltraSCSI device, it has an HD68 connector.
Use the steps in
Table 9-2
to
set up a KZPSA-BB or KZPBA-CB host bus adapter for a TruCluster Server
cluster that uses radial connection to a DWZZH UltraSCSI hub with an
HSZ40 or HSZ50 RAID array controller.
Table 9-2: Installing the KZPSA-BB or KZPBA-CB for Radial Connection to a DWZZH UltraSCSI Hub
| Step | Action | Refer to: |
| 1 | Ensure that the KZPSA-BB internal termination resistors, Z1, Z2, Z3, Z4, and Z5 are installed. | Section 9.1.4.4, Figure 9-1, and KZPSA PCI-to-SCSI Storage Adapter Installation and User's Guide |
| Ensure that the eight KZPBA-CB internal termination resistor SIPs, RM1-RM8 are installed. | Section 4.3.3.3, Figure 4-1, and KZPBA-CB PCI-to-Ultra SCSI Differential Host Adapter User's Guide | |
| 2 | Power down the system. Install a KZPSA-BB PCI-to-SCSI adapter or KZPBA-CB UltraSCSI host adapter in the PCI slot corresponding to the logical bus to be used for the shared SCSI bus. Ensure that the number of adapters is within limits for the system, and that the placement is acceptable. | KZPSA PCI-to-SCSI Storage Adapter Installation and User's Guide and KZPBA-CB PCI-to-Ultra SCSI Differential Host Adapter User's Guide |
| 3 | Install a BN38C or BN38D cable between the KZPSA-BB or KZPBA-CB UltraSCSI host adapter and a DWZZH port. | -- |
|
||
| 4 | Power up the system, and update the system SRM console firmware and KZPSA-BB host bus adapter firmware from the latest Alpha Systems Firmware Update CD-ROM. | Firmware release notes for the system (Section 4.2) and Section 9.1.4.5 |
|
||
| 5 | Use the
show config
and
show device
console
commands to display the installed devices and information about the
KZPSA-BBs or KZPBA-CBs on the AlphaServer systems.
Look for
KZPSA
or
pk*
in the
display to determine which devices are KZPSA-BBs.
Look for
QLogic
ISP1020
in the
show config
display and
isp
in the
show device
display
to determine which devices are KZPBA-CBs.
|
Section 9.1.3 and Example 9-1 through Example 9-4 |
| 6 | Use the
show pk*
or
show isp*
console commands to determine the status of the KZPSA-BB or KZPBA-CB
console environment variables, and then use the
set
console command to set the KZPSA-BB bus speed to fast, termination power
to on, and the KZPSA or KZPBA-CB SCSI bus ID. |
Section 9.1.4.1 through Section 9.1.4.3 and Example 9-6 through Example 9-9 |
|
||
| 7 | Repeat steps 1 through 6 for any other KZPSA-BBs or KZPBA-CBs to be installed on this shared SCSI bus on other member systems. | -- |
| 8 | Connect a DS-DWZZH-03 or DS-DWZZH-05 to an HSZ40 or HSZ50 | Section 10.5 |
9.1.2 Installing a KZPSA-BB or KZPBA-CB Using External Termination
Use the steps in
Table 9-3
to set up
a KZPSA-BB or KZPBA-CB for a TruCluster Server cluster using the old method of
external termination and Y cables.
Table 9-3: Installing a KZPSA-BB or KZPBA-CB for Use with External Termination
| Step | Action | Refer to: |
| 1 | Remove the KZPSA-BB internal termination resistors, Z1, Z2, Z3, Z4, and Z5. | Section 9.1.4.4, Figure 9-1, and KZPSA PCI-to-SCSI Storage Adapter Installation and User's Guide |
| Remove the eight KZPBA-CB internal termination resistor SIPs, RM1-RM8. | Section 4.3.3.3, Figure 4-1, and KZPBA-CB PCI-to-Ultra SCSI Differential Host Adapter User's Guide | |
| 2 | Power down the member system. Install a KZPSA-BB PCI-to-SCSI bus adapter or KZPBA-CB UltraSCSI host adapter in the PCI slot corresponding to the logical bus to be used for the shared SCSI bus. Ensure that the number of adapters is within limits for the system, and that the placement is acceptable. | KZPSA PCI-to-SCSI Storage Adapter Installation and User's Guide and KZPBA-CB PCI-to-Ultra SCSI Differential Host Adapter User's Guide |
| 3 | Install a BN21W-0B Y cable on each KZPSA-BB or KZPBA-CB host adapter. | -- |
| 4 | Install an H879-AA terminator on one leg of the BN21W-0B Y cable of the member system that will be on the end of the shared SCSI bus. | -- |
| 5 | Power up the system, and update the system SRM console firmware and KZPSA-BB host bus adapter firmware from the latest Alpha Systems Firmware Update CD-ROM. | Firmware release notes for the system (Section 4.2) and Section 9.1.4.5 |
|
||
| 6 | Use the
show config
and
show device
console
commands to display the installed devices and information about the
KZPSA-BBs or KZPBA-CBs on the AlphaServer systems.
Look for
KZPSA
or
pk*
in the
display to determine which devices are KZPSA-BBs.
Look for
QLogic
ISP1020
in the
show config
display and
isp
in the
show device
display
to determine which devices are KZPBA-CBs.
|
Section 9.1.3 and Example 9-1 through Example 9-4 |
| 7 | Use the
show pk*
or
show isp*
console commands to determine the status of the KZPSA-BB or KZPBA-CB
console environment variables, and then use the
set
console command to set the KZPSA-BB bus speed to fast, termination power
to on, and the KZPSA or KZPBA-CB SCSI bus ID. |
Section 9.1.4.1 through Section 9.1.4.3 and Example 9-6 through Example 9-9 |
|
||
| 8 | Repeat steps 1 through 7 for any other KZPSA-BBs or KZPBA-CBs to be installed on this shared SCSI bus on other member systems. | -- |
| 9 | Install the remaining SCSI bus hardware needed for storage (DWZZA(B), RAID array controllers, storage shelves, cables, and terminators). | Section 10.4 |
| BA350 storage shelf | Section 10.3.1, Section 10.4.1.1, and Section 10.4.3.1 | |
| Non-UltraSCSI BA356 storage shelf | Section 10.3.2.1, Section 10.4.1.2, and Section 10.4.3.2 | |
| UltraSCSI BA356 storage shelf | Section 10.3.2.2, Section 10.4.1.3, and Section 10.4.3.3 | |
| HSZ40 or HSZ50 RAID array controller | Section 10.4.4 | |
| RAID Array 3000 | Section 10.4.5 | |
| 10 | Install the tape device hardware and cables on the shared SCSI bus as follows: | Chapter 8 |
| TZ88 | Section 8.1 | |
| TZ89 | Section 8.2 | |
| Compaq 20/40 GB DLT Tape Drive | Section 8.3 | |
| TZ885 | Section 8.5 | |
| TZ887 | Section 8.6 | |
| TL891/TL892 MiniLibrary | Section 8.7 | |
| TL890 with TL891/TL892 | Section 8.8 | |
| TL894 | Section 8.9 | |
| TL895 | Section 8.10 | |
| TL893/TL896 | Section 8.11 | |
| TL881/TL891 DLT MiniLibraries | Section 8.12 | |
| Compaq ESL9326D Enterprise Library | Section 8.13 | |
|
||
9.1.3 Displaying KZPSA-BB and KZPBA-CB Adapters with the show Console Commands
Use the
show config
and
show
device
console commands to display system configuration.
Use the output to determine which devices are KZPSA-BBs or KZPBA-CBs, and to
determine their SCSI bus IDs.
Example 9-1
shows the output from the
show config
console command on an AlphaServer 4100 system.
Example 9-1: Displaying Configuration on an AlphaServer 4100
P00>>> show config
Compaq Computer Corporation
AlphaServer 4x00
Console V5.1-3 OpenVMS PALcode V1.19-14, Tru64 UNIX PALcode V1.21-22
Module Type Rev Name
System Motherboard 0 0000 mthrbrd0
Memory 64 MB SYNC 0 0000 mem0
Memory 64 MB SYNC 0 0000 mem1
Memory 64 MB SYNC 0 0000 mem2
Memory 64 MB SYNC 0 0000 mem3
CPU (4MB Cache) 3 0000 cpu0
CPU (4MB Cache) 3 0000 cpu1
Bridge (IOD0/IOD1) 600 0021 iod0/iod1
PCI Motherboard 8 0000 saddle0
Bus 0 iod0 (PCI0)
Slot Option Name Type Rev Name
1 PCEB 4828086 0005 pceb0
2 S3 Trio64/Trio32 88115333 0000 vga0
3 DECchip 21040-AA 21011 0024 tulip0
4 DEC KZPSA 81011 0000 pks1
5 DEC PCI MC 181011 000B mc0
Bus 1 pceb0 (EISA Bridge connected to iod0, slot 1)
Slot Option Name Type Rev Name
Bus 0 iod1 (PCI1)
Slot Option Name Type Rev Name
1 NCR 53C810 11000 0002 ncr0
2 NCR 53C810 11000 0002 ncr1
3 QLogic ISP1020 10201077 0005 isp0
4 QLogic ISP1020 10201077 0005 isp1
5 DEC KZPSA 81011 0000 pks0
Example 9-2
shows the output from the
show device
console command entered on an
AlphaServer 4100 system.
Example 9-2: Displaying Devices on an AlphaServer 4100
P00>>> show device polling ncr0 (NCR 53C810) slot 1, bus0 PCI, hose 1 SCSI Bus ID 7 dka500.5.0.1.1 Dka500 RRD45 1645 polling ncr1 (NCR 53C810) slot 2, bus0 PCI, hose 1 SCSI Bus ID 7 dkb0.0.0.2.1 DKb0 RZ29B 0007 dkb100.1.0.2.1 DKb100 RZ29B 0007 polling isp0 (QLogic ISP1020) slot 3, bus 0 PCI, hose 1 SCSI Bus ID 7 dkc0.0.0.3.1 DKc0 HSZ70 V70Z dkc1.0.0.3.1 DKc1 HSZ70 V70Z dkc2.0.0.3.1 DKc2 HSZ70 V70Z dkc3.0.0.3.1 DKc3 HSZ70 V70Z dkc4.4.0.3.1 DKc4 HSZ70 V70Z dkc5.0.0.3.1 DKc5 HSZ70 V70Z dkc6.0.0.3.1 DKc6 HSZ70 V70Z dkc100.1.0.3.1 DKc100 RZ28M 0568 dkc200.2.0.3.1 DKc200 RZ28M 0568 dkc300.3.0.3.1 DKc300 RZ28 442D polling isp1 (QLogic ISP1020) slot 4, bus 0 PCI, hose 1 SCSI Bus ID 7 dkd0.0.0.4.1 DKd0 HSZ50-AX X29Z dkd1.0.0.4.1 DKd1 HSZ50-AX X29Z dkd2.0.0.4.1 DKd2 HSZ50-AX X29Z dkd100.1.0.4.1 DKd100 RZ26N 0568 dkd200.1.0.4.1 DKd200 RZ26 392A dkd300.1.0.4.1 DKd300 RZ26N 0568 polling kzpsa0 (DEC KZPSA) slot 5, bus 0 PCI, hose 1 TPwr 1 Fast 1 Bus ID 7 kzpsa0.7.0.5.1 dke TPwr 1 Fast 1 Bus ID 7 L01 A11 dke100.1.0.5.1 DKe100 RZ28 442D dke200.2.0.5.1 DKe200 RZ26 392A dke300.3.0.5.1 DKe300 RZ26L 442D polling floppy0 (FLOPPY) pceb IBUS hose 0 dva0.0.0.1000.0 DVA0 RX23 polling kzpsa1 (DEC KZPSA) slot 4, bus 0 PCI, hose 0 TPwr 1 Fast 1 Bus ID 7 kzpsa1.7.0.4.1 dkf TPwr 1 Fast 1 Bus ID 7 E01 A11 dkf100.1.0.5.1 DKf100 RZ26 392A dkf200.2.0.5.1 DKf200 RZ28 442D dkf300.3.0.5.1 DKf300 RZ26 392A polling tulip0 (DECchip 21040-AA) slot 3, bus 0 PCI, hose 0 ewa0.0.0.3.0 00-00-F8-21-0B-56 Twisted-Pair
Example 9-3
shows the output from the
show config
console command entered on an AlphaServer
8200 system.
Example 9-3: Displaying Configuration on an AlphaServer 8200
>>> show config
Name Type Rev Mnemonic
TLSB
4++ KN7CC-AB 8014 0000 kn7cc-ab0
5+ MS7CC 5000 0000 ms7cc0
8+ KFTIA 2020 0000 kftia0
C0 Internal PCI connected to kftia0 pci0
0+ QLogic ISP1020 10201077 0001 isp0
1+ QLogic ISP1020 10201077 0001 isp1
2+ DECchip 21040-AA 21011 0023 tulip0
4+ QLogic ISP1020 10201077 0001 isp2
5+ QLogic ISP1020 10201077 0001 isp3
6+ DECchip 21040-AA 21011 0023 tulip1
C1 PCI connected to kftia0
0+ KZPAA 11000 0001 kzpaa0
1+ QLogic ISP1020 10201077 0005 isp4
2+ KZPSA 81011 0000 kzpsa0
3+ KZPSA 81011 0000 kzpsa1
4+ KZPSA 81011 0000 kzpsa2
7+ DEC PCI MC 181011 000B mc0
Example 9-4
shows the output from the
show device
console command entered on an AlphaServer
8200 system.
Example 9-4: Displaying Devices on an AlphaServer 8200
>>> show device polling for units on isp0, slot0, bus0, hose0... polling for units on isp1, slot1, bus0, hose0... polling for units on isp2, slot4, bus0, hose0... polling for units on isp3, slot5, bus0, hose0... polling for units kzpaa0, slot0, bus0, hose1... pke0.7.0.0.1 kzpaa4 SCSI Bus ID 7 dke0.0.0.0.1 DKE0 RZ28 442D dke200.2.0.0.1 DKE200 RZ28 442D dke400.4.0.0.1 DKE400 RRD43 0064 polling for units isp4, slot1, bus0, hose1... dkf0.0.0.1.1 DKF0 HSZ70 V70Z dkf1.0.0.1.1 DKF1 HSZ70 V70Z dkf2.0.0.1.1 DKF2 HSZ70 V70Z dkf3.0.0.1.1 DKF3 HSZ70 V70Z dkf4.0.0.1.1 DKF4 HSZ70 V70Z dkf5.0.0.1.1 DKF5 HSZ70 V70Z dkf6.0.0.1.1 DKF6 HSZ70 V70Z dkf100.1.0.1.1 DKF100 RZ28M 0568 dkf200.2.0.1.1 DKF200 RZ28M 0568 dkf300.3.0.1.1 DKF300 RZ28 442D polling for units on kzpsa0, slot 2, bus 0, hose1... kzpsa0.4.0.2.1 dkg TPwr 1 Fast 1 Bus ID 7 L01 A11 dkg0.0.0.2.1 DKG0 HSZ50-AX X29Z dkg1.0.0.2.1 DKG1 HSZ50-AX X29Z dkg2.0.0.2.1 DKG2 HSZ50-AX X29Z dkg100.1.0.2.1 DKG100 RZ26N 0568 dkg200.2.0.2.1 DKG200 RZ28 392A dkg300.3.0.2.1 DKG300 RZ26N 0568 polling for units on kzpsa1, slot 3, bus 0, hose1... kzpsa1.4.0.3.1 dkh TPwr 1 Fast 1 Bus ID 7 L01 A11 dkh100.1.0.3.1 DKH100 RZ28 442D dkh200.2.0.3.1 DKH200 RZ26 392A dkh300.3.0.3.1 DKH300 RZ26L 442D polling for units on kzpsa2, slot 4, bus 0, hose1... kzpsa2.4.0.4.1 dki TPwr 1 Fast 1 Bus ID 7 L01 A10 dki100.1.0.3.1 DKI100 RZ26 392A dki200.2.0.3.1 DKI200 RZ28 442C dki300.3.0.3.1 DKI300 RZ26 392A
9.1.4 Displaying Console Environment Variables and Setting the KZPSA-BB and KZPBA-CB SCSI ID
The following sections show how to use the
show
console command to display the
pk*
and
isp*
console
environment variables and set the KZPSA-BB and KZPBA-CB SCSI ID on
various AlphaServer systems.
Use these examples as guides for
your system.
Note that the console environment variables used
for the SCSI options vary from system to system.
Also, a class of
environment variables (for example,
pk*
or
isp*) may show both internal and external options.
Compare the following examples with the devices shown in the
show config
and
show dev
examples to determine which devices are KZPSA-BBs or KZPBA-CBs on the
shared SCSI bus.
9.1.4.1 Displaying KZPSA-BB and KZPBA-CB pk* or isp* Console Environment Variables
To determine the console environment variables to use, execute the
show pk*
and
show isp*
console
commands.
Example 9-5
shows the
pk
console environment variables for an AlphaServer 4100.
Example 9-5: Displaying the pk* Console Environment Variables on an AlphaServer 4100 System
P00>>>show pk* pka0_disconnect 1 pka0_fast 1 pka0_host_id 7 pkb0_disconnect 1 pkb0_fast 1 pkb0_host_id 7 pkc0_host_id 7 pkc0_soft_term diff pkd0_host_id 7 pkd0_soft_term on pke0_fast 1 pke0_host_id 7 pke0_termpwr 1 pkf0_fast 1 pkf0_host_id 7 pkf0_termpwr 1
Compare the
show pk*
command display in
Example 9-5
with the
show config
command in
Example 9-1
and the
show dev
command in
Example 9-2.
Note that there are no
pk*
devices in either display.
Example 9-2
shows:
The NCR 53C810 SCSI controllers as
ncr0
and
ncr1
with disk
DKa
and
DKb
(pka
and
pkb)
The Qlogic ISP1020 devices (KZPBA-CBs) as
isp0
and
isp1
with disks
DKc
and
DKd
(pkc
and
pkd)
The KZPSA-BBs with disks
DKe
and
DKf
(pke
and
pkf)
Example 9-5
shows two
pk*0_soft_term
environment variables;
pkc0_soft_term
which
is
on, and
pkd0_soft_term
which is
diff.
The
pk*0_soft_term
environment variable applies to systems using the QLogic ISP1020 SCSI
controller, which implements the 16-bit wide SCSI bus and uses dynamic
termination.
The QLogic ISP1020 module has two terminators, one for the 8 low bits
and one for the high 8 bits.
There are five possible values for
pk*0_soft_term:
off
-- Turns off both the low 8 bits and high 8 bits
low
-- Turns on the low 8 bits and turns
off the high 8 bits
high
-- Turns on the high 8 bits and
turns off the low 8 bits
on
-- Turns on both the low 8 bits and high 8 bits
diff
-- Places the bus in differential mode
The KZPBA-CB is a Qlogic ISP1040 module, and its termination is
determined by the presence or absence of internal termination resistor
SIPs RM1-RM8.
Therefore, the
pkb0_soft_term
environment variable has no
meaning and it may be ignored.
Example 9-6
shows the use of the
show
isp
console command to display the
console environment variables for KZPBA-CBs on an AlphaServer 8x00.
Example 9-6: Displaying Console Variables for a KZPBA-CB on an AlphaServer 8x00 System
P00>>> show isp* isp0_host_id 7 isp0_soft_term on isp1_host_id 7 isp1_soft_term on isp2_host_id 7 isp2_soft_term on isp3_host_id 7 isp3_soft_term on isp5_host_id 7 isp5_soft_term diff
Both
Example 9-3
and
Example 9-4
show five
isp
devices;
isp0,
isp1,
isp2,
isp3, and
isp4.
In
Example 9-6, the
show isp*
console command shows
isp0,
isp1,
isp2,
isp3, and
isp5.
The console code that assigns console environment variables counts
every I/O adapter including the KZPAA, which is the device after
isp3, and therefore
logically
isp4
in the
numbering scheme.
The
show isp
console command
skips over
isp4
because
the KZPAA is not a QLogic 1020/1040 class module.
Example 9-3
and
Example 9-4
show that
isp0,
isp1,
isp2, and
isp3
are on the internal KFTIA PCI bus
and not on a shared SCSI bus.
Only
isp5, the KZPBA-CB, is on a shared
SCSI bus.
The other three shared SCSI buses use KZPSA-BBs.
Example 9-7
shows the use of the
show
pk
console command to display the
console environment variables for KZPSA-BBs on an AlphaServer 8x00.
Example 9-7: Displaying Console Variables for a KZPSA-BB on an AlphaServer 8x00 System
P00>>> show pk* pka0_fast 1 pka0_host_id 7 pka0_termpwr on pkb0_fast 1 pkb0_host_id 7 pkb0_termpwr on pkc0_fast 1 pkc0_host_id 7 pkc0_termpwr on
9.1.4.2 Setting the KZPBA-CB SCSI ID
After you determine the console environment variables for the
KZPBA-CBs on the shared SCSI bus, use the
set
console command to set the SCSI ID.
For a TruCluster Server cluster,
you will most likely have to set the SCSI ID for all KZPBA-CB
UltraSCSI adapters except one.
If you are using a DS-DWZZH-05
with fair arbitration enabled, you will have to set the SCSI IDs for
all KZPBA-CB UltraSCSI adapters.
Note
You will have problems if you have two or more SCSI adapters at the same SCSI ID on any one SCSI bus.
If you are using a DS-DWZZH-05, you cannot use SCSI ID 7 for a KZPBA-CB UltraSCSI adapter; SCSI ID 7 is reserved for DS-DWZZH-05 use.
If DS-DWZZH-05 fair arbitration is enabled, the SCSI ID of the host adapter must match the SCSI ID assigned to the hub port. Mismatching or duplicating SCSI IDs will cause the hub to hang.
Use the
set
console command as shown in
Example 9-8
to set the KZPBA-CB SCSI ID.
In this example, the SCSI ID is set for KZPBA-CB
pkc
on the AlphaServer 4100 shown in
Example 9-5.
Example 9-8: Setting the KZPBA-CB SCSI Bus ID
P00>>> show pkc0_host_id 7 P00>>> set pkc0_host_id 6 P00>>> show pkc0_host_id 6
9.1.4.3 Setting KZPSA-BB SCSI Bus ID, Bus Speed, and Termination Power
If the KZPSA-BB SCSI ID is not correct, or if it was reset to 7
by the firmware update utility, or you need to change the KZPSA-BB
speed, or enable termination power, use the
set
console command.
Note
All KZPSA-BB host bus adapters should be enabled to generate termination power.
Set the SCSI bus ID with the
set
command as
shown in the following example:
>>> set pkn_0_host_id #
The
n
specifies which KZPSA-BB the
environment variables apply to.
You obtain the
n
value from the
show
device
and
show pk*
console commands.
The number
sign (#) is the SCSI bus ID for the KZPSA.
Set the bus speed with the
set
command as shown
in the following example:
>>> set pkn0_fast #
The number sign (#) specifies the bus speed. Use a 0 for slow and a 1 for fast.
Enable SCSI bus termination power with the
set
command as shown
in the following example:
>>> set pkn0_termpwr on
Example 9-9
shows how to determine the present
SCSI ID, bus speed, and the status of termination power, and then set
the KZPSA-BB SCSI ID to 6 and bus speed to fast for
pkb0.
Example 9-9: Setting KZPSA-BB SCSI Bus ID and Speed
P00>>> show pkb* pkb0_fast 0 pkb0_host_id 7 pkb0_termpwr on P00>>> set pkb0_host_id 6 P00>>> set pkb0_fast 1 P00>>> show pkb0_host_id 6 P00>>> show pkb0_fast 1
9.1.4.4 KZPSA-BB and KZPBA-CB Termination Resistors
The KZPSA-BB internal termination is disabled by removing termination
resistors Z1 through Z5, as shown in
Figure 9-1.
Figure 9-1: KZPSA-BB Termination Resistors
The KZPBA-CB internal termination is disabled by removing the termination
resistors RM1-RM8 as shown in
Figure 4-1.
9.1.4.5 Updating the KZPSA-BB Adapter Firmware
You must check, and update as necessary, the system and host bus adapter firmware. The firmware may be out-of-date. Read the firmware release notes from the AlphaSystems Firmware Update CD-ROM for the applicable system/SCSI adapter.
If the System Reference Manual (SRM) console or KZPSA-BB
firmware is not current, boot the Loadable Firmware Update (LFU)
utility from the Alpha Systems Firmware Update CD-ROM.
Choose the
update
entry from the list of LFU commands.
LFU
can update all devices or any particular device you select.
When you boot the Systems Firmware Update CD-ROM, you can
read the firmware release notes.
After booting has completed,
enter
read_rel_notes
at the
UPD>
prompt.
You can also copy and print the release notes as
shown in
Section 4.2.
To update the firmware, boot the LFU utility from the Alpha Systems Firmware Update CD-ROM.
It is not necessary to use the
-flag
option to the
boot
command.
Insert the Alpha
Systems Firmware Update CD-ROM and boot.
For example, to boot from
dka600:
P00>>> boot dka600
The boot sequence provides firmware update overview information. Use Return to scroll the text, or press Ctrl/C to skip the text.
After the overview information has been displayed, the name of the
default boot file is provided.
If it is the correct boot file, press
Return at the
Bootfile:
prompt.
Otherwise, enter the name of the file you want to boot from.
The firmware images are copied from the CD-ROM and the LFU help message shown in the following example is displayed:
*****Loadable Firmware Update Utility*****
-------------------------------------------------------------
Function Description
-------------------------------------------------------------
Display Displays the system's configuration table.
Exit Done exit LFU (reset).
List Lists the device, revision, firmware name and
update revision
Readme Lists important release information.
Update Replaces current firmware with loadable data
image.
Verify Compares loadable and hardware images.
? or Help Scrolls this function table.
The
list
command indicates, in the
device
column,
which devices it can update.
Use the
update
command to update all firmware, or
you can designate a specific device to update; for example, KZPSA-BB
pkb0:
UPD> update pkb0
After updating the firmware and verifying this with the
verify
command, reset the system by cycling the power.