HP-UX HB v13.00 Ch-15 - Serviceguard

HP-UX Handbook – Rev 13.00 Page 4 (of 108)
Chapter 15 Serviceguard
October 29, 2013
Obtaining Flight Recorder Logs from an HPUX crashdump (SG A.11.15 and later) using q4 ______________ 58
Obtaining Flight Recorder Logs from a cmcld core file (SG A.11.15 and later on HPUX) _________________ 58
Before Logging Serviceguard case ___________________________________________________________ 59
Solving Serviceguard Problems _____________________________________________________________ 59
Serviceguard Command hangs _____________________________________________________________ 60
Cluster Re-formations ____________________________________________________________________ 60
Serviceguard TOC _______________________________________________________________________ 61
System Administration Errors ______________________________________________________________ 62
Packages ________________________________________________________________________ 63
What happens during package start _________________________________________________________ 63
What happens during package stop _________________________________________________________ 65
Package Control Script Hangs or Failures _____________________________________________________ 65
Package Movement Errors ________________________________________________________________ 67
Network issues ___________________________________________________________________ 67
Node and Network Failures _______________________________________________________________ 67
How to track down Networking Problems ____________________________________________________ 68
Tools ___________________________________________________________________________ 69
crashinfo ______________________________________________________________________________ 69
dlpiping
http://teams3.sharepoint.hp.com/teams/esssupport/InsideESSSupport/InsideWTEC/HA/Pages/Tools.aspx
(HP internal). ___________________________________________________________________________ 70
LVM related Problems____________________________________________________________________ 71
(See the section titled Serviceguard TOC) _____________________________________________________ 82
Serviceguard Command Problems __________________________________________________________ 83
Cluster Quorum to Prevent Split-Brain Syndrome (See the section titled “Quorum Rules and Cluster
Arbitration Device”) _____________________________________________________________________ 88
Cluster Lock ____________________________________________________________________________ 88
Lock Requirements ______________________________________________________________________ 88
Use of an LVM Lock Disk as the Cluster Lock __________________________________________________ 89
Use of the Quorum Server as the Cluster Lock _________________________________________________ 91
Types of Volume Managers________________________________________________________________ 94
HP-UX Logical Volume Manager ____________________________________________________________ 94
VERITAS Volume Manager (VxVM) __________________________________________________________ 94
Cluster Volume Manager _________________________________________________________________ 95
Serviceguard Manager _____________________________________________________________ 97
Patch information _____________________________________________________________ 102
Serviceguard Daemons __________________________________________________________________ 103
CFS Components, Commands and Daemons _________________________________________________ 103
CFS Components _______________________________________________________________________ 103
CFS Commands ________________________________________________________________________ 104
CFS Daemons__________________________________________________________________________ 104
Serviceguard Related Files _______________________________________________________________ 105
Additional Information _________________________________________________________ 106