QuickSpecs
hp
AlphaServer
SC20
DA-10976
North America — Version 1 — May 24, 2002
13
Options
Step 4 – Select Management Building Block (MBB) and Options for Console and Management Expansion
(continued)
Step 4e – Optional – Graphics cards
•
Additional consoles are available by custom configuration in ES40 and ES45 nodes only. Each additional console requires additional 3DLabs
graphics cards and other equipment. Contact your Account Manager for configuration assistance.
3DLabs Oxygen VX1 32-MB PCI graphics adapter
SN-PBXGF-AB
Step 5 – Mandatory
−
Select Storage Building Blocks (SBBs) and Options
•
AlphaServer SC20 systems are organized into File-Serving Domain and Compute-Serving Domains. Altogether there are five or fewer
Domains. Each domain has from 2 to 32 AlphaServer nodes configured with a cluster file system that is served by two of the nodes. This
system storage is supported by a single Storage Building Block (SBB) that is capable of supporting all the system-storage requirements of the
entire AlphaServer SC System.
•
The File Server Domain is used to serve user data to the rest of the system and may optionally have several extra SBBs configured.
•
An AlphaServer SC SBB includes a RAID disk subsystem and software and hardware required for providing system or user data storage for the
AlphaServer SC20. The SBB comes in a two-shelf version or a three-shelf version; the two-shelf version houses up to 28 disk drives
(3R-A0585-AA, 3R-A1543-AA, 3R-A0919-AA, 3R-A3079-AA or 3R-A3050-AA) and the three-shelf version houses up to 42 disk drives (not
available with systems built with IBB16). The SBB includes cables that connect the Fibre Channel Switch (3X-SCFCA-AA, 3X-SCFDA-AA)
to the included host adapters and to the hierarchical storage dual-controller shelf (DA-SCDMA/HA-BA). Each Fibre Channel Switch is packaged
with a rack mount kit and appropriate power cord.
•
Optional storage configurations can be added to provide extra user RAID storage. Various amounts of redundancy can also be configured. The
storage and cabinetry components for these can be found in this step or later sections of the QuickSpecs. Contact your Account Manager to
plan the configuration
•
Use the following table to determine the parts and quantities required to build the minimum required system storage for the AlphaServer SC20.
Locate the column corresponding to the number of domains. Select the parts required for system storage as specified in that column.
Step 5a
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Mandatory - Configure minimum SBBs required for booting the AlphaServer SC System
•
If the AlphaServer SC System comprises no more than four domains, then select Medium Density (2-shelf) or Heavy Density (3-shelf) SBBs.
The latter will accommodate more disks if they are required for user data). If the AlphaServer SC System comprises five domains, then select
Heavy Density (3-shelf) SBBs. Five disk drives are required per domain. Heavy Density (3-shelf) SBB is not available with systems built with
IBB 16.
Medium Density Storage Building Block
DA-SCDMA-BA
Heavy Density Storage Building Block
DA-SCDHA-BA
The Medium Density Storage Building Block (SBB) includes:
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Dual HSG80 controller shelf
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Two split bus shelves, four Ultra3 cables
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Six fiber optic cables
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Two Fibre Channel host adapters (DS-KGPSA-CA), one for each boot node in first domain
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Space for up to 28 – 18.2-GB, 36.4-GB or 72-GB 1-inch disk drives
•
Two licenses each for:
- HSG80 Array Controller Software
- HSG80 Solution Software for Tru64 UNIX
- StorageWorks
command console UNIX agents
- Advanced File System Utilities
