RAID 1 in window 2000 server

Posted on 2003-03-18
Medium Priority
Last Modified: 2010-04-13
Can Win2k OS be mirrored with RAID 1 ? Some said I can only mirror the data partiton, not the OS partition, in which means there will be a problem to cause the data and OS lost and server won't be bootup from mirrored(second) drive, if both OS and data in the same partition.

Please advise.
Question by:joehuang
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2

Expert Comment

ID: 8159641
Sure on a hardware mirror, it is common for the OS to be mirrored.  It doesn't know it's mirrored, but it is.

The statement would be correct if you are referring to Dynamic Disk Mirroring.  

If you have a data drive mirrored using dynamic disk and you for some reason have a critical failure of the OS and have to reinstall, your data should still be there.  This is howvever a very good argument for good backups.

Author Comment

ID: 8161058
1. Do you mean the hardware mirror work on either basic disk or dynamic disk ?

2. Can I mirror the OS, if I use the basic disk ?


Expert Comment

ID: 8161134
A hardware RAID implementation is strictly hardware based.  The OS doees not even know it is installed on a RAID array.  So baisc or dynamic disk in hardware RAID it does not matter.  Generally I would recommend against placing your system partition on a dynamic disk.

You can mirror the OS on a basic disk ONLY if you implement RAID through hardware, not through software.
Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.


Author Comment

ID: 8161513
Can you tell why you don't recommend to mirror OS/system partition with dynamic disk ?

Accepted Solution

MSGeek earned 80 total points
ID: 8162351
While it can be done, I am a believer in Hardware based RAID implementations.  You are not relying on the OS to maintain the mirror.  The following KBs mat shed some light on why I don't like to mirror the system partition.  It can be done, but again it's not like a hardware based mirror with hot swapable drives.  When a drive fails you just put in a replacement at the mirror is rebuilt.


Expert Comment

ID: 8162922
Thanks, MSGeek.

Featured Post

Optimize your web performance

What's in the eBook?
- Full list of reasons for poor performance
- Ultimate measures to speed things up
- Primary web monitoring types
- KPIs you should be monitoring in order to increase your ROI

Question has a verified solution.

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

NTFS file system has been developed by Microsoft that is widely used by Windows NT operating system and its advanced versions. It is the mostly used over FAT file system as it provides superior features like reliability, security, storage, efficienc…
If you're a modern-day technology professional, you may be wondering if certifications are really necessary. They are. Here's why.
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.
Suggested Courses

762 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