Exchange witness server hardware requirements (Ram, CPU and Hard Drive)

We have two Dell Rx730 PowerEdge servers (256 GB Ram and 14 X 8 TB drives for database and logs) for Exchange 2016. We are going to make a DAG of these two Exchange servers. Is there any specific requirements such as RAM, CPU and Hard Drive for Witness server?
LVL 2
Muhammad AsifSenior Solutions ArchitectAsked:
Who is Participating?

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

x
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.

Jose Gabriel Ortega CastroCEOCommented:
Nope, just have to comply the regular prerequisites for exchange 2016 and system requirements.

Source: https://technet.microsoft.com/en-us/library/dd638104%28v=exchg.160%29.aspx?f=255&MSPPError=-2147217396#HR

System requirement: https://technet.microsoft.com/en-us/library/aa996719(v=exchg.160).aspx
Prerequisites: https://technet.microsoft.com/en-us/library/bb691354(v=exchg.160).aspx

PS: But I think that with just 2 servers you don't use a witness yet, you use a witness server when you have 3 or more.
0
AmitIT ArchitectCommented:
You can make any server in your Domain as witness server, it could be your file server too. However, make sure it is always available. You need witness server, when you have even number of servers in  your DAG. Remember, 2/3 majority needed for cluster to function. Hope that answers your query.
0
Muhammad AsifSenior Solutions ArchitectAuthor Commented:
Hi Guys,

Thanks for your replies. Please also guide on ReFS with Exchange 2016 server. When I try to create a mailbox-database, the Exchange shows a permissions warning message which is given below with a separate heading. It is also worth mentioning that the databases are created fine in the Exchange but I still need to know the root cause of this warning. Have anyone else have faced the same issue on REFS drives in Exchange 2016.

Error Description:

There was a problem creating directory "D:\Program Files\Microsoft\Exchange Server\V15\Mailbox\REFSDB01" on server "hostname.domain.com". In order to ensure that the Exchange data is kept secure, please create the directory, if it does not already exist, and configure directory permissions so that "SYSTEM" and the local "Administrators" group have "Full Control" for the folder, subfolders, and files. It is recomended that permission inheritance be broken so that only "SYSTEM" and "Administrators" have access to the directory.
0
Simplify Active Directory Administration

Administration of Active Directory does not have to be hard.  Too often what should be a simple task is made more difficult than it needs to be.The solution?  Hyena from SystemTools Software.  With ease-of-use as well as powerful importing and bulk updating capabilities.

RoninCommented:
According to Ross Smith IV, the maximum recommended memory for Exchange is 192GB.

In 2015 it was 96GB, this statement is at the comments to this excellent article. However after September 2017 it's 192GB. Unless you going to run something else on this server together with Exchange, which is not recommended, there's no real need for such amount of memory.

I would personally would prefer four "slower" servers rather than those two.

See here for witness server requirements.

At the bottom of this page, you'll find your answer to the amount and functionality of quorum models.
0

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
Muhammad AsifSenior Solutions ArchitectAuthor Commented:
I beleive there is not any specific requirements f regarding RAM/CPU etc. for Witness server so it can be created with minimum available resources.
0
RoninCommented:
Required information has been provided.
0
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
Server Hardware

From novice to tech pro — start learning today.