RE: # of instances per machine

It depends. What version are you running? If version 5 then perhaps that might be a good rule. I would not consider running 7.x+ on less than 4 CPUs. It also depends on whether these instances will all be active at the same time, if they can swap out...... However. I am highly suspicious of the question. I would much rather have one or two instances, each with multiple databases. Each instance is tuned for different kind of work, and you drop a database into the instance which is tuned for it's type of processing. Each additional instance is something else to keep an eye on. You also lose some overhead to each instance (rootdbs, logical/physical). Databases are much simpler to manage. cheers j. > -----Original Message----- > From: Christian Eriksson [mailto:c-eriks@algonet.se] > Sent: Tuesday, January 30, 2001 7:51 AM > To: informix-list@iiug.org > Subject: # of instances per machine > > > Hi! > > I wonder if there's any recommendations about how many instances you > should configure on the same machine. I especially want to know if the > statement "no more instances than physical processors" is a good rule > of thumb. To support this rule is the view that each instance's CPU > virtual processor should have one physical processor on it's own. > > > Sent via Deja.com > http://www.deja.com/ >