Solved

In a hardware RAID 5 array should Windows Server 2003 be installed on a partition?

Posted on 2009-05-09
5
422 Views
Last Modified: 2012-08-14
I have been asked to build a server with RAID 5 and Windows Server 2003 which I have never done before.

I have done some research and I understand that hardware RAID is much better than software, and I understand the stages of configuration using the RAID controller card's bios.

The next stage is to boot from the Windows 2003 server cd, and press F6 at the relevant point to install the RAID controller drivers.

During my research, on a thread that I cannot find, I read that the Windows Server 2003 OS cannot be stored on the RAID 5 array. I read this during an early point of my research and cannot remember if this was the case in software RAID, hardware RAID or both.

Do I need to have RAID 1 for the os and the rest of the disks in RAID 5 in *hardware* RAID?

Is that even possible?

Or do I configure hardware RAID 5 using all of the disks and then create a partition to install the os on during Windows Server 2003 set up? If so, how big should the partition be - 20gb?

I am still not 100% sure that you can partition hardware RAID 5?

I do not have a great amount of practical experience, as is probably evident.

If these questions could be answered I would be very grateful.
0
Comment
Question by:NoobTechnician
  • 3
  • 2
5 Comments
 
LVL 5

Expert Comment

by:DTAHARLEV
ID: 24345817
Think of it this way: Windows doesn't know how the drives are configured. RAID-1 of two 63GB drives will look just like one 63GB drive; RAID-5 of five 73GB drives will look to Windows just like a regular 300GB drive (4 x 73). You can create partitions just like you would have on any other drive.
0
 

Author Comment

by:NoobTechnician
ID: 24345828
Thank you for the information about RAID - that makes more sense to me now.

Knowing that I can partition the RAID 5 array, is it advisable to create a partition to install the Windows Server 2003 OS onto? Or just install onto unpartitioned space?

Is it advisable to keep the OS on one partition and data on the other partitions?
0
 
LVL 5

Accepted Solution

by:
DTAHARLEV earned 250 total points
ID: 24345855
It is; depending on how your drives are configured, how many you have and how many you need. Here's what we do with Dell PowerEdge 2850s, which have 6 drives:

We create a RAID-1 mirror array using drives 1 & 2, making the entire drive the C: partition (approx 73GB)
We create a RAID-5 array using disks 3,4,5,6 (300GB each) getting about 850GB. We create either one partition there for data and programs, or we split it up -- one partition for programs (some 150-200GB) and another for data (the rest.)
0
 

Author Comment

by:NoobTechnician
ID: 24345868
It is a Dell PowerEdge 2850 that I will be working with.

Thanks for your valuable help.

I will create a RAID 1 mirror using drives 1 and 2 and create a RAID 5 array using drives 3, 4, 5 and 6 which I won't partition as I'm not entirely sure what the servers purpose will be yet.
0
 
LVL 5

Expert Comment

by:DTAHARLEV
ID: 24345872
That's perfect; on some Dell machines they may show up as drives 0 - 5 instead of 1 - 6. The advantage you're getting here as well is that the RAID controller some times has two channels, so channel 1 controls drives 1 - 2 and channel 2 controls drives 3 - 6. This gives you even better performance, as they can both work at the same time.

TIP: install Dell Server Administrator, it's a great tool that ships with the server and sends you alerts if one of the drives fail, etc. -- don't just count on noticing it turn orange.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Problem with time server configuration. 8 65
Moving SQl Server SBS 2003 to SQL Server 2014 27 119
idle mapped drive 10 51
AD user acount change history 4 64
I guess it is not common knowledge to most Wintel engineers/administrators: If you have an SNMP-based monitoring system in your environment (and it's common to have SNMP or Syslog) it's reasonably easy to enable monitoring of the Windows Event logs,…
Numerous times I have been asked this questions that what is it that makes my machine log on so slow, there have been cases where computers took 23 minute exactly after taking password and getting to the desktop. Interesting thing was the fact th…
You have products, that come in variants and want to set different prices for them? Watch this micro tutorial that describes how to configure prices for Magento super attributes. Assigning simple products to configurable: We assigned simple products…
I designed this idea while studying technology in the classroom.  This is a semester long project.  Students are asked to take photographs on a specific topic which they find meaningful, it can be a place or situation such as travel or homelessness.…

911 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

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now