Chapter 2 subsystem architecture and components, 1 overview – Compaq 9900 User Manual
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Hitachi Lightning 9900™ User and Reference Guide
11
Chapter 2 Subsystem Architecture and Components
2.1 Overview
Figure 2.1 shows the Hierarchical Star Network (HiStar or HSN) architecture of the Lightning
9900™ RAID subsystem. The “front end” of the 9900 subsystem includes the hardware and
software that transfers the host data to and from cache memory, and the “back end”
includes the hardware and software that transfers data between cache memory and the disk
drives.
CHT
DTA
MPA
CHT
DTA
MPA
Data Cache
control cache
Data Cache
control cache
Data Cache
Data Cache
Cache Switch
Processor Side
Cache/Data Side
Cache Switch
Processor Side
Cache/Data Side
Cache Switch
Processor Side
Cache/Data Side
Cache Switch
Processor Side
Cache/Data Side
ACP
DTA
MPA
ACP
DTA
MPA
Figure 2.1
Lightning 9900™ HiStar Network (HSN) Architecture
- Netelligent 8500 (3 pages)
- 127453-B21 (4 pages)
- AlphaPC 164LX (82 pages)
- QUICKSPECS 294162-B21 (1 page)
- PowerLeap JP2 (6 pages)
- 5900 (1 page)
- 517212-001 (26 pages)
- SmartCore Express SMA200 (42 pages)
- 212953-B21 (2 pages)
- NC3132 (4 pages)
- 705 (2 pages)
- au-Series (11 pages)
- AlphaPC 164SX (72 pages)
- 21264 (356 pages)
- PROLIANT 3000 (137 pages)
- ProLiant p-Class (24 pages)
- TL895 (10 pages)
- Microcom 420 (2 pages)
- uSign Signature Capture Module uSign 200 (18 pages)
- Universal Notebook Power Adapter SPS-2406 (4 pages)
- RAID ARRAY 3000 EK-SMCPO-UG. C01 (112 pages)
- DA-10121 (3 pages)
- AlphaStation XP1000 (16 pages)
- MICROSPACE MSEBX800 (53 pages)
- Contec RS-232C (77 pages)
- SDLT 220GB (8 pages)
- Cabinet H9A11 (32 pages)
- MTEK6000 (81 pages)
- SANetworks Network View DA10682 (6 pages)
- AA-RHGWB-TE (320 pages)
- OXYGEN VX1 (29 pages)
- COM Express Extension (24 pages)
- Lithium-ion battery (7 pages)
- 164SX (72 pages)
- 3200 (211 pages)
- AA-Q88CE-TE (320 pages)
- MSB900L (66 pages)
- WL100 (2 pages)
- Wireless LAN 100 (2 pages)
- 1000 LX (4 pages)
- AAR-88LB-TE (42 pages)
- PC100 (66 pages)
- VAX 7000 Model 810 (9 pages)
- 99875320-5 (44 pages)
- CP-2E (91 pages)