Managing Serviceguard Eighteenth Edition, September 2010

M
MAC addresses, 432
managing the cluster and nodes, 341
manual cluster startup, 61
MAX_CONFIGURED_PACKAGES
defined, 166
maximum number of nodes, 37
MEMBER_TIMEOUT
and cluster re-formation, 117
and safety timer, 55
configuring, 160
defined, 159
maximum and minimum values , 159
modifying, 251
membership change
reasons for, 62
memory capacity
hardware planning, 124
memory requirements
lockable memory for Serviceguard, 122
minimizing planned down time, 440
mirror copies of data
protection against disk failure, 30
MirrorDisk/UX, 44
mirrored disks connected for high availability
figure, 47
mirroring
disks, 44
mirroring disks, 45
mkboot
creating a root mirror with, 225
modular package, 279
monitor cluster with Serviceguard commands, 273
monitored non-heartbeat subnet
parameter in cluster manager configuration, 155
monitored resource failure
Serviceguard behavior, 37
monitoring clusters with Serviceguard Manager, 272
monitoring hardware, 401
monitoring LAN interfaces
in network manager, 92
moving a package, 352
multi-node package, 68
multipathing
and Veritas DMP, 46
automatically configured, 45
native, 45
sources of information, 46
multiple systems
designing applications for, 430
N
name resolution services, 220
native mutipathing
defined, 45
network
adding and deleting package IP addresses, 91
failure, 94
load sharing with IP addresses, 92
local interface switching, 93
local switching, 94
OTS/9000 support, 491
redundancy, 40
remote system switching, 97
network communication failure, 120
network components
in Serviceguard, 38
network failure detection
INONLY_OR_INOUT, 93
INOUT, 92
network manager
adding and deleting package IP addresses, 91
main functions, 89
monitoring LAN interfaces, 92
testing, 400
network planning
subnet, 124, 131
network polling interval (NETWORK_POLLING_INTERVAL)
parameter in cluster manager configuration, 161
network time protocol (NTP)
for clusters, 222
NETWORK_AUTO_FAILBACK
defined, 164
NETWORK_FAILURE_DETECTION
defined, 164
networking
redundant subnets, 124
networks
binding to IP addresses, 433
binding to port addresses, 433
IP addresses and naming, 431
node and package IP addresses, 90
packages using IP addresses, 432
supported types, 38
writing network applications as HA services, 427
no cluster locks
choosing, 66
node
basic concepts, 37
failure, TOC, 116
halt (TOC), 116, 117
in Serviceguard cluster, 30
IP addresses, 90
timeout and TOC example, 117
node types
active, 31
primary, 31
NODE_FAIL_FAST_ENABLED
effect of setting, 119
NODE_NAME
cluster configuration parameter, 149
parameter in cluster manager configuration, 143
nodetypes
498 Index