Managing Serviceguard Seventeenth Edition, First Reprint December 2009

M
MAC addresses, 398
managing the cluster and nodes, 311
manual cluster startup, 61
MAX_CONFIGURED_PACKAGES
defined, 160
maximum number of nodes, 37
MEMBER_TIMEOUT
and cluster re-formation, 117
and safety timer, 55
configuring, 156
defined, 154
maximum and minimum values , 155
modifying, 227
membership change
reasons for, 62
memory capacity
hardware planning, 124
memory requirements
lockable memory for Serviceguard, 122
minimizing planned down time, 406
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, 204
modular package, 255
monitor cluster with Serviceguard commands, 249
monitored non-heartbeat subnet
parameter in cluster manager configuration, 151
monitored resource failure
Serviceguard behavior, 37
monitoring clusters with Serviceguard Manager, 248
monitoring hardware, 367
monitoring LAN interfaces
in network manager, 92
moving a package, 317
multi-node package, 68
multipathing
and Veritas DMP, 46
automatically configured, 45
native, 45
sources of information, 46
multiple systems
designing applications for, 396
N
name resolution services, 200
native mutipathing
defined, 45
network
adding and deleting package IP addresses, 91
failure, 95
load sharing with IP addresses, 92
local interface switching, 93
local switching, 94
OTS/9000 support, 457
redundancy, 40
remote system switching, 97
network communication failure, 120
network components
in Serviceguard, 38
network failure detection
INONLY_OR_INOUT, 93
INOUT, 93
network manager
adding and deleting package IP addresses, 91
main functions, 89
monitoring LAN interfaces, 92
testing, 366
network planning
subnet, 124, 131
network polling interval (NETWORK_POLLING_INTERVAL)
parameter in cluster manager configuration, 157
network time protocol (NTP)
for clusters, 202
NETWORK_AUTO_FAILBACK
defined, 158
NETWORK_FAILURE_DETECTION
defined, 158
networking
redundant subnets, 124
networks
binding to IP addresses, 399
binding to port addresses, 399
IP addresses and naming, 397
node and package IP addresses, 90
packages using IP addresses, 398
supported types, 38
writing network applications as HA services, 393
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, 145
parameter in cluster manager configuration, 139
nodetypes
464 Index