Managing Serviceguard Fifteenth Edition, reprinted May 2008

538
changes to cluster allowed while the cluster
is running
, 359
changes to packages allowed while the
cluster is running
, 398
changing the volume group configuration
while the cluster is running
, 373
checkpoints, 461
client connections
restoring in applications
, 470
cluster
configuring with commands
, 228
redundancy of components, 36
Serviceguard, 26
typical configuration, 25
understanding components, 36
cluster administration, 349
solving problems, 428
cluster and package maintenance, 329
cluster configuration
creating with SAM or Commands
, 228
file on all nodes, 65
identifying cluster lock volume group, 229
identifying cluster-aware volume groups,
236
planning, 155
planning worksheet, 168
sample diagram, 134
verifying the cluster configuration, 248
cluster configuration file
Autostart Delay parameter
(AUTO_START_TIMEOUT)
, 166
cluster coordinator
defined
, 65
cluster lock, 68
4 or more nodes, 73
and cluster re-formation time, 145, 156
and cluster reformation, example, 127
and power supplies, 53
and safety timer, 60
backup up lock data, 211
dual lock disk, 71
identifying in configuration file, 229, 232
migrating device file names, 361
migrating disks to agile addressing, 486
no locks, 73
single lock disk, 71
storing configuration data, 250
two nodes, 69
updating configuration, 361
use in re-forming a cluster, 69
cluster manager
automatic restart of cluster
, 67
blank planning worksheet, 505
cluster node parameter, 156, 159, 160
cluster volume group parameter, 167
defined, 65
dynamic re-formation, 67
heartbeat interval parameter, 165
heartbeat subnet parameter, 160
initial configuration of the cluster, 65
main functions, 65
maximum configured packages parameter,
167
monitored non-heartbeat subnet, 163
network polling interval parameter, 166
node timeout parameter, 165
physical lock volume parameter, 159
planning the configuration, 156
quorum server parameter, 157, 158
quorum server polling interval parameter,
158
quorum server timeout extension
parameter
, 158
testing, 407
cluster node
parameter in cluster manager
configuration
, 156, 159, 160
cluster parameters
initial configuration
, 65
cluster reformation
scenario
, 126
cluster re-formation time, 145
cluster startup
manual
, 67
cluster volume group
creating physical volumes
, 217
parameter in cluster manager
configuration
, 167
cluster with high availability disk array
figure
, 51, 52
clusters
active/standby type
, 54
larger size, 54