How to setup physical storage HDD for Hyper-V server

I have a new server that has been modified to be a VM server using Hyper-V.  I have six 600GB HDD to use and the system/OS drive is 300GB.  I've installed Hpyer-V and created 4 virtual machines and installed the OS Win2012 server on all four.  I want to begin to create hard drives for each virtual machine and my question is do I first RAID all six HDD's or do I not RIAD them first?  Currently four of the six HDD are set at RAID 5 and I was think all six should be set with RAID 10.
My first time with Hyper-V and virtualization.
cbumatayIT/Network Services CoordinatorAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Justin EvansCommented:
first of all,  is ideally you should have a RAID 1 Mirror of the System OS Drive,  giving redundancy to the System/OS drive.  The six 600 GB Disks in my opinion would be best at RAID 5.0  Giving a Second Disk.  

So now you should have c:\ 300 GB
and D:\  3000 GB

when creating the VM's use the D:\ partition when creating new VM's
cbumatayIT/Network Services CoordinatorAuthor Commented:
Thanks for the quick response.  Questions:  Would I gain performance using RAID 10 over RAID 5?
Say I RAID 5 all six...I want one of the VM's to be a SQL server.  The current VM has a 60GB for OS.  Do I then create 2 more disks .. one for database storage and a 2nd for logs/data dump?
Lee W, MVPTechnology and Business Process AdvisorCommented:
Few people use RAID 5 these days - too great a risk.  If your controller has a cache and depending on the expected usage and types of drives (you don't say if they are SSD, 10K, 7.2K, NVMe, 15K), a RAID 6 may be fine.  RAID 10 is a good option too but you lose more usable disk space.

Think about this logically, the hard drives for the VMs are FILES.  They live on a FILE SYSTEM.  If that file system isn't reliable, the files aren't reliable.  Create the array to start with and then put the files on that.

Also, read my article on Physical vs. Virtual (you can skip the very first part - arguments as to why to virtualize - the second part is a lot of dos and don'ts and other tips.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Protecting & Securing Your Critical Data

Considering 93 percent of companies file for bankruptcy within 12 months of a disaster that blocked access to their data for 10 days or more, planning for the worst is just smart business. Learn how Acronis Backup integrates security at every stage

Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Justin EvansCommented:
if you use RAID 6 prepare to have a smailler capacity on your disk 2400GB instead of 3000GB,  RAID 5 has worked for many years well,  I am sure RAID 6 is great with two disk failure  but be prepared to lose disk space after you've RAID'ed!  RAID 5 is fine if you can remember to check your disks if you have one fail.
cbumatayIT/Network Services CoordinatorAuthor Commented:
System drive is 2 300GB SAS 15K at RAID 1.
6 600GB SAS 10K drives currently at RAID 5 (correction 4 at RAID 5 and 2 not allocated..just added them).
andyalderSaggar maker's framemakerCommented:
I'd use RAID 10 if you have the space, you may want the SQL logs on separate disks than the SQL data, but you can always use your 300GB OS drives for that.
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
It would be best to have all drive bays filled with 600GB 10K SAS drives, set up one RAID 6 array, and carve that array up into two logical disks:
1: 75GB for the host OS
2: Balance GB/TB for guests

The above and more can be found in my article linked above.

I have a new EE article  Practical Hyper-V Performance Expectations that will provide a pretty good view of what can be expected out of the setup.

Make sure the RAID controller has non-volatile or battery-backed cache and write-back mode is on.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.