Managing HP Serviceguard A.11.20.10 for Linux, December 2012

integrating HA applications with Serviceguard, 269
introduction
Serviceguard at a glance, 19
understanding Serviceguard hardware, 25
understanding Serviceguard software, 31
IP
in sample package control script, 228
IP address
adding and deleting in packages, 60
for nodes and packages, 59
hardware planning, 77, 81
portable, 59
reviewing for packages, 246
switching, 43, 44, 67
IP_MONITOR
defined, 98
J
JFS, 259
K
kernel
hang, and TOC, 72
safety timer, 32
kernel consistency
in cluster configuration, 134
kernel interrupts
and possible TOC, 95
L
LAN
heartbeat, 36
interface name, 77, 80
LAN failure
Serviceguard behavior, 25
LAN interfaces
primary and secondary, 25
LAN planning
host IP address, 77, 81
traffic type, 77
Launching Monitoring Scripts, 289
link-level addresses, 262
load sharing with IP addresses, 60
local switching, 60
lock
cluster locks and power supplies, 30
use of the cluster lock, 39
use of the cluster lock disk, 38
lock volume group, reconfiguring, 219
logical volume parameter in package control script, 185
logical volumes
creating the infrastructure, 139
planning, 81
LV, 185
in sample package control script, 228
LVM
commands for cluster use, 139
disks, 29
planning, 81
M
MAC addresses, 262
managing the cluster and nodes, 203
manual cluster startup, 37
MAX_CONFIGURED_PACKAGES
parameter in cluster manager configuration, 99
maximum number of nodes, 25
MEMBER_TIMEOUT
and safety timer, 32
configuring, 94
defined, 94
maximum and minimum values , 94
membership change
reasons for, 37
memory capacity
hardware planning, 77
memory requirements
lockable memory for Serviceguard, 75
minimizing planned down time, 266
mirrored disks connected for high availability
figure, 30
monitor cluster with Serviceguard commands, 158
monitored non-heartbeat subnet
parameter in cluster configuration, 92
monitored resource failure
Serviceguard behavior, 25
monitoring disks, 191
monitoring hardware, 242
Monitoring script
launching, 289
template, sample, 291
Monitoring Script for Generic Resources, 289
moving a package, 211
multi-node package, 41, 164
multiple systems
designing applications for, 261
N
name resolution services, 133
network
adding and deleting package IP addresses, 60
load sharing with IP addresses, 60
local interface switching, 60
OTS/9000 support, 287
redundancy, 26
remote system switching, 67
network communication failure, 74
network components
in Serviceguard, 25
network manager
adding and deleting package IP addresses, 60
main functions, 59
network planning
subnet, 77, 80
network polling interval (NETWORK_POLLING_INTERVAL)
parameter in cluster manager configuration, 95, 99
network time protocol (NTP)
for clusters, 134
networking
300 Index