On Thu, 2006-01-19 at 16:28 +0100, carlopmart wrote: > Hi all, > > I have a customer who needs to deploy RHCS 3 on two nodes using > TrendMicro IMSS 5.7 with RHEL 3. And i have two questions: > > - Which type of power swithes I need to accomplish this?? i can not > found anything about it on RedHat's website. Is it posible to use > serial null cable instead a power switch? You need a power switch to ensure that I/Os on the dead node don't make it to shared storage after the surviving node recovers the services. You can run RHCS3 without a power switch, in which case, the cluster becomes extremely paranoid (where the slightest twitch causes nodes to reboot themselves!). I'd check out http://www.wti.com - most of their networked power switches (NPS, TPS, IPS, and NBB series) are covered by RHCS3's STONITH code. -- Lon -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
