On Nov 14, 2007 8:42 AM, Hameed, Amir <[EMAIL PROTECTED]> wrote: > Mike, > Thanks for the valuable feedback. To provide high availability, we will > RAC this system. I would like to ask some follow up questions and > because I am not a system/Unix administrator (I am an Oracle > Applications and DB Engineer) so please bear with me if I ask a question > that does not make much sense. > - Because NAS also uses NFS, therefore, NAS is as secure/unsecured as > the OS-based NFS is?
Exactly. > - In your opinion, the NFS-based architecture that I am contemplating > where > a) the database server will act as the NFS server > b) filesystems will be shared over a gigabit network > c)IPMP will be used to facilitate NIC failover > is as robust and reliable as what any NAS appliance would offer. Assuming that you use VCS or Solaris Cluster to provide HA-NFS service, I would say that they are comparable. When considering performance, it is important to consider optimizations that exist in NAS appliances - it is common for them to have NVRAM to journal writes that allows them to offer better NFS performance. On the other hand, I have generally found it harder to debug any problems that come up with a NAS appliance is in the mix. Hopefully the OpenSolaris emphasis on becoming a storage platform will change the industry for the better in this area. -- Mike Gerdts http://mgerdts.blogspot.com/ _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org
