3.6.1 HP PolyServe Software for Windows File Serving Administration Guide (T5392-96019, July 2008)

Chapter4:ConfigureVirtualCIFSServers 33
CONSIDER.Thisisthedefaultvalue.Eventsareconsideredwhenthe
ClusterPulseprocessmakesfailoverdecisions.
IGNORE.Eventsareignored;scriptfailuresandDOWNstatusreports
fromthemonitorwillnotcausefailover.Thisisusefulwhenthe
DOWN
statusortheactionperformedbythescriptsisnotcritical,butis
importantenoughthatyouwanttokeeparecordofit.
Script Ordering
ScriptorderingdeterminestheorderinwhichtheStartandStopscripts
arerunwhenaVirtualCIFSServermovesfromonenodetoanother.If
youdonotconfiguretheVirtualFileSharemonitorwithStartandStop
scripts,thescriptorderingconfigurationhasnoeffect.Therearetwo
settings:
SERIALandPARALLEL.
SERIAL.Thisisthedefaultsetting.WhenaVirtualCIFSServermoves
fromonenodetoanother,thefollowingstrictorderingsequencefor
runningStartandStopscriptsisenforced:
1. TheStopscriptisrunonallnodeswherethevirtualhostshouldbe
inactive.
2. ClusterPulsewaitsforallStopscriptsto
complete.
3. TheStartscriptisrunonthenodewherethevirtualhostisbecoming
active.
PARALLEL.ThestrictorderingsequenceforStopandStartscriptsisnot
enforced.ThescriptsruninparallelacrossthematrixasaVirtualCIFS
Serverisintransition.
The
PARALLELconfigurationcan speedupfailovertimeforservicesthat
donotdependonstrictorderingofS tart andStopscripts.Assumingthat
itissafetorunthescriptsinparallel(whichdependsonyour
application),thissettingcanalsoincreasethechancesofasuccessful
failoverbecauseClusterPulsedoesnot
havetowaitforthefailingnodeto
finishrunningitsStopscript.