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Host Limitations
See Table 12 for a description of the LUN assignments for the iSeries host system.
Table 12. Host system limitations for the iSeries host system
Host system
LUN limitation
assignments per
target Configuration notes
IBM iSeries (fibre-channel). See
note.
0 - 32 There is one target per iSeries
adapter.
Note: The naming convention for the iSeries describes Models 270 and 8xx. These models
attach through a fibre-channel adapter 2766.
Recommended configurations
IBM recommends the following configurations:
v Install feature code 2766, which is an I/O adapter card, in the iSeries system unit
or the high speed link (HSL) PCI I/O towers.
v Only one 2766 adapter is supported per I/O processor (IOP) and requires a
dedicated IOP. No other I/O adapters are supported under the same IOP.
v Only two 2766 adapters are supported per a multi-adapter bridge.
Note: You can get the 2766 adapter card through RPQ 847126.
Figure 32 on page 51 shows an example of the display for the hardware service
manager (HSM) logical hardware resources associated with the IOP.
Description........................: Multiple Function IOA
Type-Model.........................: 2766-001
Status.............................: Operational
Serial number......................: 10-22036
Part number........................: 0000003N2454
Resource name......................: DC18
Port worldwide name................: 10000000C922D223
PCI bus............................:
System bus.......................: 35
System board.....................: 0
System card......................: 32
Storage............................:
I/O adapter......................: 6
I/O bus..........................:
Controller.......................:
Device...........................:
Figure 31. Example of the display for the auxiliary storage hardware resource detail for the
2766 adapter card
50 ESS Host Systems Attachment Guide
|
- Host Systems Attachment Guide 1
- Sixth Edition (November 2001) 4
- Contents 5
- Contents v 7
- Contents vii 9
- Product recycling 15
- Disposing of products 15
- About this guide 17
- Prerequisites 18
- Publications 18
- Ordering ESS publications 19
- The IBM publications center 19
- Other IBM publications 20
- About this guide xix 21
- Other non-IBM publications 23
- Web sites 24
- How to send your comments 24
- About this guide xxiii 25
- Chapter 1. Introduction 27
- Front view 28
- Rear view 28
- Chapter 1. Introduction 5 31
- SCSI adapters 33
- Cable interconnections 33
- VS08043N 34
- Cable lengths 35
- Connecting the SCSI cables 35
- Checking the attachment 36
- Solving attachment problems 36
- LUN affinity 37
- Targets and LUNs 37
- SCSI host system limitations 37
- Fibre-channel architecture 39
- Arbitrated loop 40
- LUN access modes 42
- Access profiles 43
- The anonymous host 43
- Device special files 46
- Initializing disk device 46
- Configuring AdvFS 46
- Adding and assigning volumes 49
- Configuring the storage 52
- Supported switches 55
- Displaying the ESS volume 58
- # mkdir /fs 63
- 9337 subsystem emulation 72
- Recommended configurations 76
- Host Limitations 76
- NUMA-Q host 81
- System requirements 82
- Installing the package 84
- Verifying the configuration 89
- HACMP/6000 90
- Hardware requirements 90
- Attachment procedures 91
- Saving data on the ESS 92
- Restoring data on the ESS 92
- Attaching with ESCON 95
- Cable lengths and path types 97
- Data transfer 97
- Native ESCON configuration 98
- S/390 or 100
- Mixed configuration 102
- Native FICON configuration 103
- Attaching to a FICON channel 104
- Attachment considerations 105
- Attachment requirements 109
- Partitioning ESS disks 113
- Attaching with SCSI adapters 117
- Mapping hardware 126
- /cdrom/unnamed_cdrom 129
- PATH=$PATH:/opt/IBMdpo/bin 129
- JNI adapters 144
- Emulex or QLogic adapters 145
- Boot Order [0] 149
- Next Boot [Off] 149
- Link speed Auto 176
- Performing a basic FlashCopy 177
- Software requirements 185
- Nonconcurrent migration 186
- Administrator window 191
- Concurrent migration 192
- System component LUN limit 195
- Host bus adapter 256 196
- SAN Data Gateway 255 196
- Statement of Limited Warranty 197
- Items Not Covered by Warranty 198
- Warranty Service 198
- Production Status 199
- Limitation of Liability 199
- ASIA PACIFIC 200
- Trademarks 206
- Electronic emission notices 206
- Germany only 207
- Nach der EN 55022: 208
- Anmerkung: 208
- Actions you must not take 209
- Glossary 211
- Glossary 187 213
- Glossary 189 215
- Glossary 191 217
- Glossary 193 219
- Glossary 195 221
- Glossary 197 223
- Glossary 199 225
- Glossary 201 227
- Numerics 228
- Index 205 231
- Index 207 233
- Index 209 235
- Index 211 237
- BUSINESS REPLY MAIL 240
- SC26-7296-05 242
- ESSHostSystemsAttachmentGuide 243
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