While this is a good solution, if you do not need to "reboot" or take a linux image offlinethat is running Websphere, you can have the Sys Admins set up a cluster and take on of the application servers down at a time. This would mean no outage.
Daryl On Jan 7, 2008 2:13 PM, David Boyes <[EMAIL PROTECTED]> wrote: > > I have a few Linux guests which run WebSphere. There are times when > > applying maintenance, etc, that I need to reboot Linux on these > guests. > > If I have WebSphere auto-start during the boot process then every time > I > > boot I have to wait for WAS to finish coming up - something that takes > > several minutes - before I can even so much as sign on. Obviously, if > I > > need to boot more than once, I end up having wasted a lot of time. > > One very simple method is to modify the startup script to check for the > presence of a "nostart" file (I've used /etc/websphere/nostart in other > places), and exit if the file is present, eg something like this > pseudocode: > > if -f /etc/websphere/nostart do > exit 0; > od > > When you're done, you just rm /etc/websphere/nostart, and everything > starts normally. If you want a totally menu-driven way, use a variable > in /etc/sysconfig for that particular script, eg: > > Somewhere at the top of your startup script: > > . /etc/rc.status (note dot space /) > . /etc/sysconfig/$0 (note dot space /) > > if ($ACTIVE)!=1 then > exit 0; > > (note pseudocode, untested...) > > In /etc/sysconfig have a script named the same as the init script, > including a line like: > > # Is this script active? > ACTIVE=1 > > Then you can turn the script off and on using the System Configuration > editor in YaST. > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > -- Daryl R. Hoffman System Administrator Administrative Information Systems The Pennsylvania State University Cell/Home: 814-441-9448 Work: 814-863-3829 Website: http://www.personal.psu.edu/drh4 email: [EMAIL PROTECTED] [EMAIL PROTECTED] ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
