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First Edition (April, 1999)
1
Compaq Computer Corporation
1
Contents
3
Chapter 2
4
Chapter 3
4
Chapter 4
5
Chapter 5
6
Chapter 6
7
Chapter 7
8
System Profiles
10
Controller Specifications
10
Glossary
10
About This Guide
15
Precautions
16
Maintenance Port Precautions
17
FCC Precautions
17
Conventions
18
Typographical Conventions
19
Special Notices
20
Related Publications
21
About This Guide
22
Revision History
23
General Description
25
General Description
26
CXO6841A
27
Summary of HSG80 Features
29
Controller Components
32
Cabling (Continued)
33
Operator Control Panel
35
Maintenance Port
36
Utilities and Exercisers
36
Virtual Terminal Display
37
Disk Inline Exerciser
37
Configuration Utility
37
Clone Utility
38
Field Replacement Utility
38
Device Statistics Utility
38
Cache Module
39
External Cache Battery
41
Charging Diagnostics
42
Battery Hysteresis
43
Controller and Host Concepts
45
Terminology
46
Item Description
47
➀ Other controller
47
➁ This controller
47
Selecting a Failover Mode
49
Shared Port IDs
50
Separate Port IDs
51
Preferring the Host Path
52
Caching Techniques
53
Write-Through Caching
54
Write-Back Caching
54
Nonvolatile Memory
55
Chapter 3
63
Bus Dynamics
64
Host Bus
65
Controller Device Bus
65
Containers and Storagesets
66
Containers
67
Addressing
68
Disk 10000
71
Disk 20000 Disk 30000
71
Failover Mode
72
CXO6454B
74
Assigning Unit Offsets
75
Assigning Access Paths
76
(Node IDs)
77
Planning Storagesets
81
Disk drives
83
Choosing a Storageset Type
88
CXO5507A
89
➀ First member of Mirrorset 1
95
➁ First member of Mirrorset 2
95
Availability
96
I/O Request
97
Performance and Availability
99
Stripeset
100
Cloning Data for Backup
101
Planning Storagesets
102
SAVE_CONFIGURATION
107
INITIALIZE
107
INITIALIZE DISK
107
Creating a Storageset Map
110
Spare spare Spare R1
111
R2 R2 R2 R2
111
Spare Spare Spare Spare
111
M1 M1 M2 M2
111
Planning Partitions
114
Disk Drives
115
Enabling Switches
116
Changing Switches
116
RAIDset Switches
117
Membership
118
Mirrorset Switches
119
Read Source
120
Device Switches
121
Device Transfer Rate
122
Initialize Switches
123
Increasing the Request Rate
124
CXO-5172A-MC
125
Save Configuration
126
Configurations
128
Destroy/Nodestroy
129
Chapter 5
131
Introduction
133
Controller
134
Maintenance and Service Guide
136
RUN FRUTIL
137
SHOW THIS_CONTROLLER FULL
137
Using Two Switches
138
Switches
138
Using One Switch
140
IDENTIFIER
151
Optional Steps
159
Extended Subsystem
160
Setting a Port Offline
161
Backing Up Power with a UPS
161
CXO6476B
164
Shutting Down Your Subsystem
166
Restarting Your Subsystem
167
Configuring Storagesets
169
Unit Switches
170
Adding Disk Drives
171
Formatting Disk Drives
171
Configuring Storagesets
172
Configuring a Stripeset
174
Configuring a Mirrorset
175
Configuring a RAIDset
176
RAIDset-name switch
177
RAIDset-name
177
Enabling Autospare
185
Deleting a Storageset
186
Changing Device Switches
187
Changing Initialize Switches
188
Changing Unit Switches
188
Finding the CCL Location
190
SCSI-2 and SCSI-3 Modes
190
Multiple-Bus Failover
191
Transparent Failover
191
SCSI-2 Mode
192
SCSI-3 Mode
192
Moving Storagesets
193
Name Storageset Uses Used by
195
CLI Commands
197
CLI Overview
198
Command Overview
199
Getting Help
199
Entering CLI Commands
200
Changing the CLI Prompt
201
Command Syntax
201
ADD CONNECTIONS
202
CLI Commands
204
Examples
205
See also
205
ADD DISK
206
ADD MIRRORSET
209
ADD RAIDSET
213
ADD REMOTE_COPY_SETS
217
ADD SPARESET
219
ADD STRIPESET
220
ADD UNIT
223
CLEAR_ERRORS CLI
231
CLEAR_ERRORS
232
INVALID_CACHE
232
UNKNOWN
235
LOST_DATA
236
UNWRITEABLE_DATA
238
CONFIGURATION RESET
240
CONFIGURATION RESTORE
241
CONFIGURATION SAVE
243
CREATE_PARTITION
244
Parameters
247
DELETE FAILEDSET
251
DELETE SPARESET
252
Parameter
253
DESTROY_PARTITION
254
DIRECTORY
256
LOCATE D102
265
LOCATE DISKS
265
LOCATE CANCEL
265
POWEROFF
270
RESTART
277
RETRY_ERRORS UNWRITEABLE_DATA
279
SELFTEST
283
Table 7–4. SET
288
Switches
288
Switches (Continued)
289
SET FAILEDSET
302
SET FAILOVER
304
SET MULTIBUS_FAILOVER
311
SET NOFAILOVER
313
SET NOMULTIBUS_FAILOVER
315
Table 7–6 SET
323
SHOW MIRR1
333
EMU CABINET SETTINGS
335
FANSPEED AUTOMATIC
335
SHUTDOWN
336
UNMIRROR
338
Device Profile
340
Storageset Profile
341
Enclosure Template
342
Environmental Specifications
345
B–4 Controller Specifications
346
GL–2 Glossary
348
See also
349
GL–4 Glossary
350
GL–6 Glossary
352
GL–8 Glossary
354
GL–10 Glossary
356
GL–12 Glossary
358
GL–14 Glossary
360
GL–16 Glossary
362
GL–18 Glossary
364
GL–20 Glossary
366
GL–22 Glossary
368
GL–24 Glossary
370
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