the first question you should answer is: do you have some shared disk already? (i.e a disk storage that can be detected by the OS, from both nodes)? if you have such storage on a SAN, then try QFS (eval is downloadable on sun.com) it's simple to install. For SC you need, besides the shared disk, the interconnect (2 private networks--vlan)
so what hardware have you already got? s. On 3/5/07, Adam Sherman <[EMAIL PROTECTED]> wrote:
On Mar 5, 2007, at 11:36, Selim Daoud wrote: > This is not the case for the > traditional global device (HAStoragePlus) approach > also, you would use Shared-QFS< if the application needs to access the > same files from both nodes (as it's the case for Oracle RAC: both > nodes access the sames db files at same time)..so here, the app must > be designed for this kind of work. Coomunicate seem to take advantage > of this (from their homepage) Thanks for the response! I understand that SC doesn't provide direct IO. How bad of a performance hit is this going to be? The underlying question here is whether we can start with plain SC and then _upgrade_ to Shared-QFS when we need it. Secondly, I believe CommuniGate will run on top of SC since it deals with concurrency internally. I'd love to know this for sure though. A. -- Adam Sherman Technologist +1 (613) 797-6819 | http://www.sherman.ca/ | sip:[EMAIL PROTECTED]
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