Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium



Posted on 2012-09-04
Medium Priority
Last Modified: 2016-11-23
I have question on RAID 10 array.

I have a physical dell server runing ESX VMware with 8 local physical disks (300 GB each)
configure as RAID 10 array.
The VM is red hat linux.

I assume that means there are 2 pairs of 4 disks since each disk is mirrored.

Oracle recommends having seprate disks for:

1) oracle system software
2) database files
3) flash recovery and backup files.

If all disks are configured as RAID 10 does not this mean that the every file will be striped against all 4 disks
and I can't really have one location for system software or backup files.
Question by:sam15
  • 2
  • 2
LVL 78

Expert Comment

by:slightwv (䄆 Netminder)
ID: 38364557
>>I assume that means there are 2 pairs of 4 disks since each disk is mirrored.

Not necessarily.  It depends on how the sys admin set it up.  You need a minimum of 4 disks.  It depends on how they bound them together.

>>and I can't really have one location for system software or backup files.

See above:  It depends.

Author Comment

ID: 38364634
Well, normally in RAID 10 each disk has 1 mirror disk so if one goes bad the other is used.
see picture in this link nad many other links show the same



But let us say they have 2 pairs of 4 drives in the array, how can you install oracle software on one disk. The RAID 10 striping is going to split it anyway behind the scenes.

If I want to go with oracle recommendation for oracle software, I assume i need to set one disk as RAID 1 (no striping - only mirror).

is this accurate?
LVL 125

Accepted Solution

Andrew Hancock (VMware vExpert / EE MVE^2) earned 2000 total points
ID: 38364859
In answer you cannot install Oracle on a physical disk.

You can only install Oracle in a Virtual Machine which will be stored on a datastore which is RAID 10.

Duplicate Question to this really:-


The recommandation that Oracle makes is for Physical Servers ONLY.

You are installing to a virtual server, and this does not apply, or if it was implemented, it would not be performance efficient for the virtual machines.

The Current Linux VM is stiped across all four disks, so the Oracle application will also be stripped across all four disks.
LVL 78

Expert Comment

by:slightwv (䄆 Netminder)
ID: 38364901
I've seen your series of questions on this topic.  I think you are way over thinking the setup.

"oracle recommendation for oracle software"  is just that:  a recommendation.  There is no hard and fast rule on the setup.

If you remember in your other questsion, for a 15 gig database, I suggested RAID 5 for all files.  RAID 10 can still require some downtime to recover from a failed disk.  It depends on your array.

Author Closing Comment

ID: 38403321
Excellent Explanation of installing oracle on Virtual MAchine.

Featured Post


Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The business world is becoming increasingly integrated with tech. It’s not just for a select few anymore — but what about if you have a small business? It may be easier than you think to integrate technology into your small business, and it’s likely…
Giving access to ESXi shell console is always an issue for IT departments to other Teams, or Projects. We need to find a way so that teams can use ESXTOP for their POCs, or tests without giving them the access to ESXi host shell console with a root …
Via a live example, show how to take different types of Oracle backups using RMAN.
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…
Suggested Courses

581 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question