DEC DS-HSZ22-AA Manuals

Manuals and User Guides for DEC DS-HSZ22-AA. We have 1 DEC DS-HSZ22-AA manual available for free PDF download: User Manual

DEC DS-HSZ22-AA User Manual

DEC DS-HSZ22-AA User Manual (94 pages)

storage subsystem

Brand: DEC | Category: Storage | Size: 2 MB

Table of Contents

Table of Contents
3
Revision Record

9
About this Guide

11
1 Product Overview

15
- Product Description
  15
- RAID Array 3000 Part Numbers and Model Descriptions
  17
- Pedestal Features
  18
- Pedestal Cabinet
  18
- Pedestal Front Panel Major Components
  19
- Pedestal Rear Panel Power Supplies
  19
- Pedestal Components
  20
- Storageworks Building Blocks (Sbbs)
  20
- RAID Array Controller
  20
- Pedestal Power Supplies
  21
- Uninterruptable Power Supply
  21
- Environmental Monitor Unit (EMU)
  22
- EMU Circuit Board Location
  22
- Ultrascsi Bus
  23
- Pedestal Rear Panel Components
  23
- Ultrascsi Bus Configuration Switch
  25
- Slot Locations and SCSI ID Addresses
  25
- Specifications
  26
- Pedestal Physical and Power Specifications
  27
2 RAID Array Controller

29
- Controller Overview
  29
- Controller Features
  30
- Bridging the Gap between the Host and the Pedestal
  30
- Units Created from Storagesets, Partitions, and Disk Drives
  31
- Controller Specifications
  32
- Controller Reset and LED Indicators
  34
- Led/Reset Switch Interface
  34
- Flexible RAID Set Configuration
  35
- Controller Front Panel
  35
- Performance Enhancements
  36
- Custom Components
  36
- Efficient Write and Read Algorithms
  36
- RAID Levels Supported
  38
- Pedestal RAID Set Restrictions
  38
- Raid 0
  39
- RAID 0 Write
  40
- Raid 1
  41
- Raid 0+1
  41
- Raid 4
  41
RAID Array Controller (Continued)

41
- Diagram of a RAID 1 Write
  41
- RAID 0+1 Example
  42
- Diagram of a RAID 4 Write
  43
- Raid 5
  44
- Diagram of a RAID 5 Write
  45
- Jbod
  46
- System Parameters
  46
- System Parameters
  47
- Redundant Operation
  48
- Initialization
  48
- Message Passing
  48
- Failover
  48
- Environmental
  49
- Backup Power Management
  49
- Voltage Monitoring
  50
- Acceptable System Voltage Levels
  50
- Acceptable Termination Voltage Levels
  51
- Acceptable 12 Volt Levels
  51
- Temperature Monitoring
  52
- Acceptable External Temperature Voltage Levels
  52
- Acceptable Board Temperature Voltage Levels
  52
3 Maintenance

53
- Introduction
  53
- Pedestal Status and Power Leds
  54
- SBB Status Leds
  54
- Pedestal Status Leds
  54
- Controller Leds
  55
- Disk Drive Status Leds
  55
- Disk Drive SBB Status Leds
  55
- EMU Error Reporting
  56
- EMU Error Conditions
  56
- Replacing Components (Fru's)
  57
- Removing the Pedestal Door
  57
- Removing Pedestal Door
  57
- Replacing an SBB
  58
- Replacing a Power Supply
  59
- Replacing an SBB
  59
- Replacing a Power Supply
  60
- Replacing the RAID Array Controller
  61
- Removing the Controller from the Pedestal
  61
- Replacing the EMU Board
  62
- Replacing the UPS
  64
- Differential/Wide Ultrascsi Bus
  64
- Reconfiguring the SCSI Bus
  65
- SCSI Bus Length and External Cables
  65
- Assigned Slot Device Addresses in the Pedestal
  65
- Remove Screw and Panel
  67
- Location of SCSI Bus Configuration Switch
  68
- Configuration Switch
  68
  - Replacing the Controller Memory Cache Modules
    69
- Remove Controller
  69
- Release Locking Clips
  70
- Install Replacement Modules
  71
- Pivot Module down to Secure
  72
4 Expansion Pedestal Option

73
5 Second Controller Option

87

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