On 4/22/2010 6:51 PM, John R Pierce wrote: > jchase wrote: > >> We currently have a MD3000i with an iSCSI LUN shared out to our apache >> web server. We are going to add another apache web server into the mix >> using LVS to load balance, however, I am curious how well iSCSI >> handles file locking and data integrity. ... >> > it doesn't, not even close. iscsi is purely a block device protocol, > it doesn't know what files are. > That was kind of a stupid assumption on my part and major misinterpretation of iSCSI information > >> Is my setup totally flawed and will ext3 not allow for data integrity >> with multiple apache hosts reading/writing to the shared storage? Am I >> required to also setup GFS across my apache hosts or does iSCSI >> somehow manage this? >> > NFS would be more suitable for this application. > Is there any reason why you suggest NFS? We would then need to run a NFS server and deal with the complexity of having a failover solution for that, whereas it seemed like GFS is a little more decentralized (at least in terms of not relying on a specific file server) after you configure the cluster environment. That was my impression from reading through the docs anyways. I've never set it up. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >