> -----Messaggio originale----- > Da: linux-cluster-bounces@xxxxxxxxxx > [mailto:linux-cluster-bounces@xxxxxxxxxx] Per conto di > Fabrizio Lippolis > Inviato: giovedì 29 giugno 2006 9.47 > A: linux clustering > Oggetto: Re: R: "Missed too many heartbeats" > messages andhungcluster > > Leandro Dardini ha scritto: > > > A fencing device is required for granting consistency of > write. If one node fails to comunicate with other devices, it > can write in an unconditional mode and bye bye to GFS. > > A fencing device is not only a power-fence device. In my > case it is the fibre channel switch. When a node has to be > fenced, other telnet to the fibre channel switch and turn off > the port. This doesn't powercycle the device, but blocks the > write on the shared device. What kind of shared device are you using? > > It's a GFS file system on a disk array. Since I built the > cluster for MySQL and ldap services, it's the file system > where actually are the database and directory files. The disk > array is physically connected to both machines by a SCSI cable. > Is there a managemente console accessible via telnet/http where you can "disable" a port/host? If this is the case, you have already a fencing device. Leandro > -- > Fabrizio Lippolis > fabrizio.lippolis@xxxxxxxxxxxxxxxxxxxx > Auriga Informatica s.r.l. Via Don Guanella 15/B - > 70124 Bari > Tel.: 080/5025414 - Fax: 080/5027448 - > http://www.aurigainformatica.it/ > > -- > > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster > -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
