Re: Oracle database HA on VMWare without using RAC
Date: Mon, 3 Aug 2020 15:21:49 +0000
Message-ID: <BYAPR07MB51601C2BF3D3D47FD1911E40E24D0_at_BYAPR07MB5160.namprd07.prod.outlook.com>
While DataGuard and FSFO are included in an enterprise license. I do not believe "Active" DataGuard is included. It is not necessary to have Active DataGuard for FSFO to work; i.e, for the database to failover. It is however necessary, for application continuity.
Ian A. MacGregor
SLAC National Accelerator Laboratory
Computing Division
To offer the best IT service at the lab and be the IT provider of choice.
From: oracle-l-bounce_at_freelists.org <oracle-l-bounce_at_freelists.org> on behalf of Tim Gorman <tim.evdbt_at_gmail.com> Sent: Sunday, August 2, 2020 9:38 AM
To: gogala.mladen_at_gmail.com <gogala.mladen_at_gmail.com>; oracle-l_at_freelists.org <oracle-l_at_freelists.org> Subject: Re: Oracle database HA on VMWare without using RAC
You can also use [Active] DataGuard with Fast-Start Failover (FSFO) if you have already licensed Enterprise Edition, or open-source Pacemaker/Corosync (PCS) Linux HA clustering if you don't fancy licensing anything for HA, provided you're using Oracle Enterprise Linux.
It is surprising how few failure scenarios RAC is capable of remedying, how many failures are caused by clusterware and RAC, and how many more failures can be prevented with true HA solutions.
On 8/1/2020 12:51 PM, Mladen Gogala wrote:
Standby database or Golden Gate are rather usual options. Other than that, you can setup a Veritas failover cluster for VMWare:
https://www.veritas.com/content/support/en_US/doc/ka6f10000000CAjAAM
You can do the same thing using MSFT cluster:
https://docs.vmware.com/en/VMware-vSphere/6.0/vsphere-esxi-vcenter-server-601-setup-mscs.pdf
There is also VMWare HA:
https://www.vmware.com/pdf/vmware_ha_wp.pdf
Last, but definitely not least, there is Commvault Live Sync for VMWare. It's sort of standby for VMWare.
https://documentation.commvault.com/commvault/v11/article?p=106002.htm
Virtual machines are disk files. Fail-over clusters move the disk drive to the surviving node and restart the service. There are also hardware based solutions on remote disk replication. Every major SAN vendor (EMC, Hitachi, NetApp) has remote disk replication software, usually for the high end arrays and usually separately licensed. What kind of money are you looking to spend? What is the acceptable switch-over time? Are you looking for the software-only solution, hardware solution or the combination of both? Here is a good article about VMWare high availability:
https://www.nakivo.com/blog/vm-failover-guide/
This is a question for a system architect within your company. The most important question is how much do you want to spend? When you have the $$$ then it's basically testing various commercial solutions, some of which are listed above.
On 7/31/20 11:08 PM, Hameed, Amir wrote:
Hi,
I am looking for options/features available in VMWare to provide high-availability to single-instance Oracle databases. If anyone is using VMWare to provide HA solution to their Oracle database, I would appreciate if I could be pointed to the right direction.
Thank you,
Amir
--
Mladen Gogala
Database Consultant
Tel: (347) 321-1217
--
http://www.freelists.org/webpage/oracle-l
Received on Mon Aug 03 2020 - 17:21:49 CEST