EMC Symmetrix DMX-3 User Manual

323
EMC Symmetrix DMX-3 Product Guide
Index
disk 177
error handling
detecting the error 250
determining error source 250
error recoverability 241 to 242
error reporting 246 to 249
EREP reports 248 to 249
error verification 158
errors 240 to 242
permanent 240
temporary 240
ESCON 235
ESCON channel extender 98
ESCON director 95, 97
ESCON switch 97
evaluating performance 139
extended count-key-data (ECKD) 72
extended cylinder addressing 132, 133
external modem 48
F
fast write ceiling 120
fast write operation 110, 120
features 33
fiber optic cables 92, 98
Fibre Channel back-end disk director 83
Fibre Channel front-end director 77
FICON 75, 235
FICON cascading 94, 238
FICON open systems intermix 94
flexible device geometry 70
floor layout and space recommendations 286, 293
G
GDPS 235
GigE 75
GigE IPv4/v6 (IPsec capable) channel director 82,
181
GigE IPv6/IPSec channel directors 187
global memory
basic operation 108
director 37, 83, 117, 172
management 103 to 104
prefetch algorithm 104
requirements for PermaCache 121
sizes 83
global memory techniques 113
disk microprocessor and buffer 113
high speed cache 113
multiple disk directors 113
sequential access patterns 113
split director functions 113
H
heat dissipation 269
high availability
multiport volume access 149
high performance files 133
home address (HA) 73
host integration 59 to 60
hosts
channels 59 to 60
PC servers 128
supported Fibre Channel hosts 60
UNIX 128
hypervolumes 127 to 135
mainframe device emulations 135
mainframe extended cylinder addressing
133
mainframe split-volume capability 132
open systems 127 to 131
I
I/O operations
delayed fast write 111
fast write 110
overview 105 to 112
read miss 109
I/O response time
connect time 106
connect time (mainframe) 105
disconnect time 105, 106
pend time (mainframe) 105
queuing time 106
queuing time (mainframe) 105
IBM DASD 61, 68
IBM MetroMirror (PPRC) 235
index marker 73
Information mobility software 40
installation planning
mainframe systems 306 to 308
open systems 301 to 305

EMC Symmetrix DMX-3 Specifications

General

Brand	EMC
Model	Symmetrix DMX-3
Category	Storage
Language	English