HP D7171A - NetServer - LPr User manual

HP NetServer LXr 8000
with
HP A3661B High Availability Disk Array Model 30 / FC
Cluster Configuration Guide
13 September 1999
Introduction
This document defines the supported HP NetServer LXr 8000 and A3661B High Availability Disk Array
Model 30/FC (LXr 8000 / Model 30-FC) configurations for Microsoft Cluster Server. These
configurations minimize single points of failure (SPOF), provide maximum availability, and have been
certified by Hewlett-Packard and Microsoft. This guide is prescriptive; it describes the configurations
supported by HP. Any deviance to these configurations can result in an inoperative cluster or an operating
cluster with degraded performance, hidden SPOFs, etc., and therefore will not be supported by HP.
What’s Defined in a Racked Cluster
Cluster
SPUs
Local and Shared Storage
Intra-cluster and Client LANs
Shared Storage Cabling
Cluster
Type of SPUs HP NetServer LXr 8000
Each node must be the same model SPU, but may have different clocks
speeds, main memory sizes, cache sizes, and number of CPUs (2, 3, or 4).
Number of nodes 2
Shared Storage See Shared Storage below.
LANs:
Client LAN Any NIC that is HP and Microsoft approved. See Client LAN below.
Intra-cluster
(Heartbeat) LAN HP D5013A only with crossover cable. See Intra-cluster LAN below.
Power source Direct from power mains, power conditioner or uninterruptible power
supply (UPS) using any power conditioner or UPS.

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System software:
Navigator version L.14.00 or later
Operating System Microsoft Windows NT Server 4.0, Enterprise Edition.
Service pack SP3 with hotfix “clusfixi” or later
Single Points of Failure
(SPOF) The Model 30/FC Disk Array virtually does not have single points of failure. However, care should be taken to bind LUNs as described in the
Model 30/FC Disk Array manual. The manual addresses topics such as;
spreading LUNs equally across internal buses and using RAID modes. In
a cluster configuration, single points of failure arise due to the method
used to connect the disk array to the server. These single points of failure
are as follows:
•Due to Windows NT inability to allow for dual data paths, a total
fibre-channel hub failure (removal of power from the hub,
catastrophic failure of multiple hub ports) will result in the loss of the
cluster. It is possible to power the hub using an UPS to remove part
of the issue, however an unforeseen total hub failure would still be a
single point of failure. Current data on the fibre channel hub
indicates that risk in this area is minimal.
•If the data connection between the hub and Model 30/FC Disk Array
is broken the cluster will go down. The fibre channel cables are
generally known to be robust with an insignificant possibility of
failure.
•A failure in the storage processor of the Model 30/FC Disk Array
will result in a loss of the cluster. The possibility of the storage
processor failing is small. Current configurations do not allow for
failover to another storage processor in the Windows NT
environment.
SPU
Model HP NetServer LXr 8000
Clock speed 400 MHz. or higher
No. of CPUs 2 – 4
BIOS version Release 1 or later
CPU cache Any size
RAM 256 MB minimum. Must be HP.
No. of power supplies 3
Local storage Internal or external, using any controller except NetRAID 1 or 3. Must
use HP disks. See
Local Storage below.
I/O slots: P3 – P4 Shared storage controller
P1 – NetRAID local storage
P5 – Intra-cluster (Heartbeat) LAN
P6 – Client LAN
All others – Any other plug-in cards.

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Storage
Local
Physical drive location SPU internal drive bays or HP external drive cabinet (e.g., HP Rack
Storage/8 or /12)
Disk drives Must be HP
Controller SPU embedded controller or any controller, any number, manufacturer or
driver in I/O slot P1 for NetRAID local storage (except NetRAID 1 or 3).
See SPU I/O slots above.
SCSI bus Any HP cables that meet SCSI specifications and any SCSI bus speed
Shared Storage
Host Bus Adapter:
Model A5246A HP Fibre Channel Adapter Kit for NT
No. of HBA 1 – 2. (See Shared Storage Configurations.)
Driver 2.xx
SPU I/O slot P3 (1st HBA) and P4 (2nd HBA)
Disk Array Controller:
Model SP630/FC Storage Processor (ordered with A3661B or A3662B)
No. of controllers 1 – 2. (See Shared Storage Configurations.)
Microcode 9.45.03 or greater
Disk Array Storage:
Model A3661B HP High Availability Disk Array Model 30/FC.
No. of cabinets See Shared Storage Configurations.
Controller 1 – 2. (See Shared Storage Configurations.)
Disk capacities: 4 GB, 8.8 GB, 17.8 GB
ArrayGUIde Version 1.7.0 or greater
RAID levels 1, 1/0, 3 and 5
Logical units Logical units within each array must be numbered from 0 – 7.
Hot spares Recommend assigning logical unit numbers 8 or greater
Power Supply 3
RAID arrays Different size or speed disks are allowed in the same RAID array but
are not recommended in the same logical unit.
Shared Storage Cables (Fiber Optics)
Cables for the Short Wave
Port of either a Short or
Long Wave Hub
A3583A 2 meter FC cable,
A3531A 16 meter FC cable,
A3735A 50 meter FC cable,
A3736A 100 meter FC cable,
Any cable ≤500 meters per segment that conforms to ANSI X3.230-
1994 Fibre Channel Standards Specification (FC-PH) rev 4.3.
Cables for the Long Wave
Port of a Long Wave Hub Any cable ≤2 kilometers that meets ANSI X3.230-1994 Fibre Channel
Standards Specification (FC-PH) rev 4.3.

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Shared Storage Configurations
Configurations:
Basic See "Basic Configuration Cabling Diagrams with Single or Cascaded
Hubs."
Redundant See "Redundant Configuration Cabling Diagrams with Single or
Cascaded Hubs."
Fibre Channel Hubs:
Model A3724A HP 10-port Short Wave Fibre Channel (FC) Hub
A4839A HP 10-port Long Wave FC Hub
No. of Hubs Basic Configuration: 1 or 2
Redundant Configuration: 2 or 4 with 1 min. or 2. max. per FC
Arbitrated Loop.
Disk Arrays (See Shared
Storage.):
No. of Disk Arrays 1-8
No. of Controllers 1 per Disk Array for Basic Configuration.
2 per Disk Array for Redundant Configuration.
LANs
Intra-cluster (Heartbeat) LAN Client LAN
LAN connection HP D5954A crossover cable or any
equivalent Any LAN
The intra-cluster LAN may only be used for
cluster node communication via a crossover
cable. It may not be used for client
communication.
NIC:
Model HP D5013A (10/100TX PCI) Any that is on both the HP
Tested Products List and the
Microsoft Hardware
Compatibility List.
Driver 3.27.00.0001 or later (Do not enable FEC
Features.) Any driver NOTE: If the NIC used is the
same as the Intra-cluster LAN,
then the Client LAN must use
the same driver as the Intra-
cluster LAN.
No. of NICs 1 1 minimum
SPU I\O slot P5 P6

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Shared Storage Cabling
This part of the guide defines the allowable cabling configurations for clusters using the HP NetServer
LXr 8000 and High Availability Disk Array Model 30/FC. Only these cabling configurations and cables
are supported.
Basic Configuration with Single Fibre Channel Arbitrated Loop Hub
Port connections to this
hub are for example
only. You can use any
port, except for port 10
on Long Wave Hubs.
The remaining ports can
be used for connection
of additional Disk
Arrays.
See Shared
Storage Cables for
a list of cables that
can be connected
to the Short Wave
Ports of the hub.

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Basic Configuration with Cascaded Fibre Channel Arbitrated Loop
Hubs
See Shared
Storage Cables for
a list of cables that
can be connected
to the Short Wave
Ports of the hub.
Port connections to
these hubs are for
example only. You can
use any port, except for
port 10 on Long Wave
Hubs. The remaining
ports can be used for
connection of additional
Disk Arrays.
See Shared Storage
Cables for a list of
cables that can be
connected between
hubs. Port 10 is used
exclusively in Long
Wave hubs for hub-to-
hub connection.

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Redundant Configuration with Single Fibre Channel Arbitrated Loop Hub
See Shared
Storage Cables for
a list of cables that
can be connected
to the Short Wave
Ports of the hub.
Port connections to
these hubs are for
example only. You can
use any port, except for
port 10 on Long Wave
Hubs. The remaining
ports can be used for
connection of additional
Disk Arrays.

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Redundant Configuration with Cascaded Fibre Channel Arbitrated Loop Hubs
See Shared
Storage Cables for
a list of cables that
can be connected
between hubs.
Port 10 is used
exclusively in Long
Wave hubs for hub-
to-hub connection.
Port connections to
these hubs are for
example only. You
can use any port,
except for port 10 on
Long Wave Hubs. The
remaining ports can
be used for
connection of
additional Disk Arrays.
See Shared
Storage Cables for
a list of cables that
can be connected
to the Short Wave
Ports of the hub.

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Version History
13 September 1999 In Cluster specifications added a description of "Single Points Of Failure
(SPOF) to clarify this property of the cluster.
21 April 1999 CPU speed was "400 MHz and higher" is "400 and 450 MHz only."
12 January 1999 Initial release.

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