So, is there any 8 ports brocade switch that support fencing agent? can Qlogic switch work? If I use a switch without fencing agent, can I use a manual fencing way to get system work? In fact, what I want to study is the Symmetric lock principle, especially at the time concurrent write/read to the storage pool from both nodes, without considering one point failure. Thanks! On 7/29/05, JACOB_LIBERMAN@xxxxxxxx <JACOB_LIBERMAN@xxxxxxxx> wrote: > There are fencing agents for mcdata and brocade switches. Any managed > switch accessible via telnet should work, but you may have to roll your > own fencing agent based on the example scripts. > > Thanks, jacob > > > -----Original Message----- > > From: linux-cluster-bounces@xxxxxxxxxx > > [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Q.L > > Sent: Thursday, July 28, 2005 3:50 AM > > To: linux-cluster@xxxxxxxxxx > > Subject: fence device > > > > Hi, all, > > > > I would like to setup an environment to study GFS, in which > > 2 x86 box, 2 FC HBA,1 FC Switch and 1 FC raid system will be > > involved in, the 2 nodes communicate through ethernet of > > course. However, I am not sure what kind of FC switch is good > > enough to me, can I select a 8 ports FC switch freely? Do I > > have to use it as fence devcie? if I don't want to do manual > > fence configuration. > > > > Thanks! > > > > -- > > > > Linux-cluster@xxxxxxxxxx > > http://www.redhat.com/mailman/listinfo/linux-cluster > > > -- Linux-cluster@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/linux-cluster