Re: Options for fencing at the node level .
|[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]|
unsubscribe Erik Redding Systems Programmer, RHCE Core Systems Texas State University On Jun 28, 2012, at 10:01 PM, Digimer wrote: > On 06/28/2012 10:32 PM, Zama Ques wrote: >> Hi All , >> >> I need to setup HA clustering using redhat cluster suite on two nodes , >> primary concern being high availability . Before trying it on production >> , I am trying to configure the setup on two desktop machines . For >> storage , I am creating a partition and sharing the partition as a iscsi >> target on a third machine . Would like to know what are the options for >> fencing available at the node level . I tried going through the conga >> interface for creating a >> shared fence device , I could see one option is using GNBD . virtual >> machine fencing is there in the list but that is for xen based HA >> cluster . scsi fencing is there , but as far as what I understand it >> does not support iscsi target as of now. Manual fencing is also there , >> and I am planning to use that , but would like to know is there any >> other options are available for fencing at node level ? >> >> Thanks in Advance >> Zaman > > You need a real device that will power off the cluster node. If your > machines do not have IPMI, which desktops rarely ever do, you next best > option is a switched PDU. I have had excellent luck with APC AP7900 (or > your country's version of). The cluster can call this PDU and ask it to > turn off the power to the target node. > > Fencing requires a mechanism totally independent of the target. With > virtual machines, the host hypervisor can do this. For real machines > though, you need hardware. > > -- > Digimer > Papers and Projects: https://alteeve.com > > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster