TruCluster Server High Availability Case Study Test Bed Hardware

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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.

Servers
 
Production-Level Cluster Environment
Test Bed Environment
Models
Two AlphaServer 4000 5/533 systems One AlphaServer 1000A 5/333 system and one AlphaServer 1200 5/533 system
CPUs
Two AlphaServer 4x00 533MHz Tru64 UNIX SMP Upgrades (KN305-DB), one for each system
Dual CPUs. One AlphaServer 1200 533 MHz Tru64 UNIX running SMP. One AlphaServer 1000 333 MHz.
Memory
1 GB for each system
1 GB
I/O Expansion Options
Two AlphaServer 4000 PCI I/O Expansion Options (H7150-AA), one for each system None
Host Bus Adapters
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
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
Network Adapters
  • Two PCI/Fast Ethernet adapters (DE500-BA), one for each system
  • Four PCI/FDDI adapters (DEFPA-AB), two for each system
  • Four PCI/Ethernet adapters (DE450), two for each system
  • Two PCI/FDDI adapters (DEFPA-AB), one for each system
  • Four PCI/Ethernet adapters (DE450), two for each system
Memory Channel Adapters
Four Memory Channel adapters (CCMAA-BA), two for each system Two Memory Channel adapters (CCMAA-BA), one for each system
Power Supplies
Six AlphaServer 4XXX power supplies (H7291-AA), three for each system No additional power supply

Local Server Storage
 
Production-Level Cluster Environment
Test Bed Environment
Storage Shelves
  • Two UltraSCSI storage shelves (BA36R-RC), one for each system
  • Two UltraSCSI storage shelves (BA356-KH), one for each system
Built-in RA 7000 attached
Storage Shelf Power Supplies
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)
Cables
Four 5-meter UltraSCSI 68HD to VHDCI cables (BN38C-05) to connect each system to local storage shelves
Same
Disks
Ten 4.3-GB 7200Rpm UltraSCSI disks (DS-RZ1CB-VW), five for each system's local storage The minimum needed to maintain services

Memory Channel
 
Production-Level Cluster Environment
Test Bed Environment
Memory Channel Hubs
Two Memory Channel Hubs (CCMHA-AA) One Memory Channel Hub (CCMHA-AA)
Memory Channel Line Cards
Four linecards (CCMLA), two for each hub Two linecards (CCMLA)
Memory Channel Link Cables
Four PCI-Memory Channel link cables (BC12N-10), two for each Memory Channel hub Two PCI-Memory Channel link cables (BC12N-10)

Shared Storage
 
Production-Level Cluster Environment
Test Bed Environment
Model
ESA 10000 High Bandwidth base unit (DS-SWXES-BA) RA 7000
Cabinet Enclosure Model
DataCenter 600 mm enclosure None
Cabinet Power Supplies
PDU Redundant for SW600 (DS-SW6XP-AA)
No additional power supply
RAID Controllers
Four HSZ70 six-port RAID controllers (dual-redundant controllers), each with a 64 MB mirrored write back cache Two HSZ70 six-port RAID (dual-redundant) controllers, each with a 64-MB mirrored write back cache
Storage Shelves
Eight UltraSCSI storage shelves (BA35R-RC), four for each set of redundant RAID controllers One UltraSCSI storage shelf (BA35R-RC)
Storage Shelf Power Supplies
Sixteen StorageWorks 180-Watt Power Supply SSBs (DS-BA35X-HH), two for each storage shelf No additional power supply
Storage Interconnects
Two UltraSCSI hubs (DS-DWZZH-05), to connect shared buses (two buses from each system) to the four RAID controllers One UltraSCSI hub (DS-DWZZH-05)
Cables
Four 5-meter UltraSCSI 68HD to VHDCI cables (BN38C-05), to connect four shared SCSI buses to the UltraSCSI hub Three 5-meter UltraSCSI 68HD to VHDCI cables (BN38C-05)
Disks
  • Thirty-six 4.3-GB 7200Rpm UltraSCSI disks (DS-RZ1CB-VW)
  • Eight 9.1-GB 7200Rpm UltraSCSI disks (DS-RZ1DF-VW)
  • Four 2.1-GB 7200Rpm UltraSCSI disks
    (DS-RZ1BB-VW)
As required
Tape Drives
Two 100/200GB SCSI tape subsystems (TZ885-NT)
One 100/200GB SCSI tape subsystems (TZ885-NT)
SCSI Signal Converters
One signal converter (DWZZA-AA) for the tape drives
One signal converter (DWZZA-AA)