01-31-2009
Quote:
Originally Posted by
filosophizer
[...]3 nodes (A, B, C) all configured to startup with HACMP [...]
Don't know whether I got you correctly. I have never seen an admin who wanted his clusters to start up at os boot. In case you are new to HACMP you might not be in an ideal situation for making such a cluster design decision. You can configure HACMP to start up with the os but if you can take some piece of advice: don't do it. IMHO the potential problems by far outweigh the potential adavantages.
Quote:
Originally Posted by
filosophizer
I would like to configure HACMP in such a way:
1) Node B should startup first. After the cluster successfully starts up and mounts all the filesystems, then
2) Node A, and Node C should startup ![...]
HACMP is very flexible here, it lets you script everything and you can control when a command is run by pre or post events or by the start/stop scripts. You could create an ssh key with empty password distribute it accordingly to the nodes you want to access and then script the start of the other clusters. Following your description a good place for the startup command might be at the bottom of the RG start script. If you mean to power on the servers themselves you need to script HMC or CSM commands to name two possibilities.
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LEARN ABOUT OPENDARWIN
systemstarter
SystemStarter(8) BSD System Manager's Manual SystemStarter(8)
NAME
SystemStarter -- Start, stop, and restart system services
SYNOPSIS
SystemStarter [-gvxdDqn] [action [service]]
DESCRIPTION
The SystemStarter utility may be used to start, stop, and restart the system services which are described in the /Library/StartupItems/ and
/System/Library/StartupItems/ paths.
The optional action argument specifies which action SystemStarter performs on the startup items. The optional service argument specifies
which startup items to perform the action on. If no service is specified, all startup items will be acted on; otherwise, only the item pro-
viding the service, any items it requires, or any items that depend on it will be acted on.
During boot SystemStarter is invoked by rc (see rc(8)) and is responsible for starting all startup items in an order that satisfies each
item's requirements.
ACTIONS
start start all items, or start the item that provides the specified service and all items providing services it requires.
stop stop all items, or stop the item that provides the specified service and all items that depend on it.
restart restart all items, or restart the item providing the specified service.
OPTIONS
-g graphical startup
-v verbose (text mode) startup
-x safe mode startup (only run Apple-provided items)
-r keep running after last startup item completes, in graphical startup only
-d print debugging output
-D print debugging output and dependencies
-q be quiet (disable debugging output)
-n don't actually perform action on items (no-run mode)
NOTES
Unless an explicit call to ConsoleMessage is made, SystemStarter examines the exit status of the startup item scripts to determine the suc-
cess or failure of the services provided by that script.
In Darwin it is preferable to create custom startup items than to modify rc, and at some point SystemStarter may entirely encompass the role
of rc.
FILES
/Library/StartupItems/ User-installed startup items.
/System/Library/StartupItems/ System-provided startup items.
SEE ALSO
ConsoleMessage(8)
rc(8)
http://www.opensource.apple.com/projects/documentation/howto/html/SystemStarter_HOWTO.html
HISTORY
The SystemStarter utility appeared in Darwin 1.0
SystemStarter was extended in Darwin 6.0 to support partial startup and interprocess communication.
Darwin April 12, 2002 Darwin