[Linux-cluster] using NFS as a shared storage for RHCS

[carlopmart]

Jeff Sturm wrote:
>> -----Original Message-----
>>   Due to limitations and performance problems that contanins GFS and
> GFS2, I think
>> to use a OpenSolaris NFS server (with ZFS) to serve shared storage for
> three cluster
>> nodes using RHEL5.4.
>>
>>   Somebody have tried this type of configruation?? any special
> recommendations??
> 
> You're probably not going to get any good recommendations unless you can
> tell us something about your application.
> 
> GFS and GFS2 (like OCFS) are clustered filesystems that work at a layer
> above shared block storage (iSCSI, FC, etc.) SAN.
> 
> NFS (like CIFS) is a distributed filesystem that does not require any
> shared block storage or SAN appliance.  GFS and NFS are entirely
> different.  NFS works well for some purposes, for others a clustered
> filesystem is superior.
> 
> Note that you can export a GFS filesystem to mount it remotely with NFS
> or CIFS, so the two are not mutually exclusive at all.  That can be a
> good approach to build a fault-tolerant NFS service as well.
> 
> -Jeff
> 
> 

I need to install three basic services on this cluster: a corporative proxy (squid), 
MTA outbound server (postfix) and a dns slave service. My problem is that I can't 
use noatime,nodiratime flags if i use GFS/GFS2 to deploy these services because all 
needs this flags activated ... and I don't want to use external software like ocfs2 ...

-- 
CL Martinez
carlopmart {at} gmail {d0t} com