Re: [CentOS] iSCSI / GFS shared web server file system

Hi James,

On Thu, Apr 22, 2010 at 11:38 PM, jchase jchase@mandaladesigns.com 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. I have the iSCSI partition formatted as ext3.

iSCSI is just SCSI protocol over the net and doesn't provide any locking.

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?

GFS or OCFS2 etc. would be a good idea. Alternatively NFS/CIFS would do.