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A provider is setting up a single bare-metal Oracle server for us, which will not be part of any grid or cluster. It has over 20 disks connected via fiber to a SAN, each 1TB. OVM is installed on a remote redhat server and the bare metal has Oracle linux with OVS.

Is the quorum disk really obligatory? It is my understanding that it requires a small dedicated disk, but the smallest disk I have is 1TB and it would be a terrible waste-

If you could please send links to the documentation which states that it is (or isn't) I would greatly appreciate it.

I have my concerns if the provider is over engineering.

Thanks

miturbe
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    This is setting off alarm-bells for me - about 15 years ago this was the advised way to do Oracle clusters - lots of little LUNs - it drove me mad, I needed a spreadsheet to record it all. Then last time we built some clusters things had changed and our DBAs had left and been replaced and all of a sudden they were happy with fewer and bigger LUNs - something tells me you're dealing with someone not up to date here. That said which array manufacturer has a 1TB minimum LUN size? I've not heard of that before, 1GB sure but not 1TB, never seen that. – Chopper3 Aug 22 '22 at 16:53
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    This might be better answered on dba.stackexchange.com – HBruijn Aug 22 '22 at 17:02
  • Its for cluster only setup. https://docs.oracle.com/cd/E58626_01/html/E84120/grmeh.html – gapsf Aug 22 '22 at 18:36
  • https://docs.oracle.com/database/121/HABPT/config_rac.htm#HABPT4874 – gapsf Aug 22 '22 at 18:42

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First, OVM is not a supported platform any more. The replacement is Oracle Linux Virtualization Manager (OLVM) which is based on ovirt.

Now, if you still plan to use OVM then a quorum disk is required. As OVM is based on a cluster file system which needs a Quorum disk. Doesn't matter if there is a single host in the cluster.

With OLVM However you don't need a quorum disk. So maybe it is better to look into the current product and not the outdated one.

TZar
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