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The tables on this page provide a side-by-side comparison
of the hardware configured for the production-level cluster
and the hardware configured for the cluster's associated test
bed. As with any test bed configuration, the test bed environment
does not completely duplicate the production-level cluster
environment. But it is similar enough so that we can understand
the impact of changes before deployment to the production
environment.
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Servers
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Production-Level Cluster
Environment
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Test Bed Environment
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Models
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Two AlphaServer
4000 5/533 systems
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One AlphaServer
1000A 5/333 system and one AlphaServer 1200 5/533 system |
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CPUs
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Two AlphaServer 4x00 533MHz Tru64 UNIX
SMP Upgrades (KN305-DB), one for each system
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Dual CPUs. One
AlphaServer 1200 533 MHz Tru64 UNIX running SMP. One AlphaServer
1000 333 MHz. |
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Memory
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1 GB for each system
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1 GB |
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I/O Expansion Options
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Two AlphaServer 4000 PCI I/O Expansion Options
(H7150-AA), one for each system
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None |
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Host Bus Adapters
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Seven PCI-based FWD (Fast, Wide, Differential)
host bus adapters for each system:
- Four KZPBA-CA adapters to connect
each system to its local storage
- Two KZPBA-CA adapters to redundantly
connect each system to shared storage (via UltraSCSI
hub)
- One KZPSA-BB adapter to connect
each system to a shared tape device
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Four PCI-based
FWD host bus adapters for each system:
- Two KZPBA-CA adapters to connect each system to
shared disk storage
- Two KZPSA-BB adapters to connect each system to
a shared tape device
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Network Adapters
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Two PCI/Fast Ethernet adapters
(DE500-BA), one for each system
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Four PCI/FDDI adapters (DEFPA-AB),
two for each system
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Four PCI/Ethernet adapters (DE450),
two for each system
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-
Two PCI/FDDI adapters (DEFPA-AB),
one for each system
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Four PCI/Ethernet adapters (DE450),
two for each system
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Memory Channel Adapters
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Four Memory Channel adapters
(CCMAA-BA), two for each system
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Two Memory Channel
adapters (CCMAA-BA), one for each system |
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Power Supplies
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Six AlphaServer 4XXX power supplies (H7291-AA),
three for each system
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No additional power supply |
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Local
Server Storage
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Production-Level Cluster
Environment
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Test Bed Environment
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Storage Shelves
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- Two UltraSCSI storage shelves (BA36R-RC),
one for each system
- Two UltraSCSI storage shelves (BA356-KH), one for
each system
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Built-in RA 7000
attached |
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Storage Shelf Power Supplies
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Eight StorageWorks
180-Watt Power Supply SSBs (DS-BA35X-HH), two for each
storage shelf |
Five StorageWorks
180-Watt Power Supply SSBs (DS-BA35X-HH) |
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Cables
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Four 5-meter UltraSCSI 68HD to VHDCI
cables (BN38C-05) to connect each system to local storage
shelves
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Same |
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Disks
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Ten 4.3-GB 7200Rpm
UltraSCSI disks (DS-RZ1CB-VW), five for each system's
local storage |
The minimum needed
to maintain services |
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Memory
Channel
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Production-Level Cluster
Environment
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Test Bed Environment
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Memory Channel Hubs
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Two Memory Channel Hubs (CCMHA-AA)
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One Memory Channel
Hub (CCMHA-AA) |
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Memory Channel Line Cards
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Four linecards (CCMLA), two for
each hub
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Two linecards
(CCMLA) |
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Memory Channel Link Cables
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Four PCI-Memory Channel link cables (BC12N-10),
two for each Memory Channel hub
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Two PCI-Memory
Channel link cables (BC12N-10) |
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Shared
Storage
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Production-Level Cluster
Environment
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Test Bed Environment
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Model
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ESA 10000 High Bandwidth base unit (DS-SWXES-BA)
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RA 7000 |
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Cabinet Enclosure Model
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DataCenter 600 mm enclosure
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None |
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Cabinet Power Supplies
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PDU Redundant for SW600 (DS-SW6XP-AA)
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No additional
power supply |
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RAID Controllers
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Four HSZ70 six-port RAID controllers
(dual-redundant controllers), each with a 64 MB mirrored
write back cache
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Two HSZ70 six-port
RAID (dual-redundant) controllers, each with a 64-MB mirrored
write back cache |
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Storage Shelves
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Eight UltraSCSI storage shelves (BA35R-RC),
four for each set of redundant RAID controllers
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One UltraSCSI
storage shelf (BA35R-RC) |
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Storage Shelf Power Supplies
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Sixteen StorageWorks 180-Watt Power Supply
SSBs (DS-BA35X-HH), two for each storage shelf
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No additional
power supply |
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Storage Interconnects
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Two UltraSCSI hubs (DS-DWZZH-05),
to connect shared buses (two buses from each system) to
the four RAID controllers
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One UltraSCSI
hub (DS-DWZZH-05) |
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Cables
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Four 5-meter UltraSCSI 68HD to VHDCI cables
(BN38C-05), to connect four shared SCSI buses
to the UltraSCSI hub
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Three 5-meter
UltraSCSI 68HD to VHDCI cables (BN38C-05) |
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Disks
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Thirty-six 4.3-GB 7200Rpm UltraSCSI
disks (DS-RZ1CB-VW)
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Eight 9.1-GB 7200Rpm UltraSCSI
disks (DS-RZ1DF-VW)
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Four 2.1-GB 7200Rpm UltraSCSI disks
(DS-RZ1BB-VW)
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As required |
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Tape Drives
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Two 100/200GB SCSI tape subsystems (TZ885-NT)
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One 100/200GB
SCSI tape subsystems (TZ885-NT) |
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SCSI Signal Converters
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One signal converter (DWZZA-AA)
for the tape drives
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One signal converter
(DWZZA-AA) |
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