Re: Oracle standalone or Oracle RAC on VMWARE support
Date: Mon, 6 Jan 2014 09:40:58 -0600
Message-ID: <CAJt=wvUPiiZTup8OCxt5fA+GdLHDGYCgX2FLq__hPHcy8V02TA_at_mail.gmail.com>
We have all out environment on virtual servers using VMWARE (by company's decisions, all servers are virtualized for cost reasons).
We have 11 production db, on 3 different servers, all working 24x7x365; we have been on this schema for more than 8 years (with Oracle 8i first, now with Oracle 11g R2)
Since I joined this company (about 3 years ago), I have been trying to convince people around to change to physical servers for the same reason you mentioned (Oracle is not Certified on Virtualized environments) and actually, when we have requested Oracle support, that's the first thing they say as a first "justification" of any problem.
But until now, I haven't found a convinced reason for this change; we have made tests on physical environments and compare metrics, and there's no difference (not even a little), I still not feel comfortable with this schema but I must recognize it works and works fine.
Some of the "pros" is the cost of HW of course, but also the maintenance and workarounds of OS, server configuration is also easier (Server Team can clone the production server to a new host in less than 4 hours -a Server of 600 GB size-)
On the "cons", am still not convinced about the functionality of parallelism, split of datafiles, archivelogs and backups (at OS level they are seen separated on different filesystems, but they are on a single physical filesystem) and if you need to get some statistics of I/O or Network traffic, it's kind of complicated, as resources are shared with other servers (we have one physical server -CISCO- and about 5 virtual servers on it -DB, App and Domain servers included on the list-
David Ramírez Reyes
Profesión: Padre de Familia
-- http://www.freelists.org/webpage/oracle-lReceived on Mon Jan 06 2014 - 16:40:58 CET