Solved

What is the performance diffenerce between a basic disk configuration and a RAID 1 configuration?

Posted on 2011-09-27
5
233 Views
Last Modified: 2016-12-08
What is the performance diffenerce between a basic disk configuration and a RAID 1 configuration?
0
Comment
Question by:harris3563
[X]
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
  • 3
  • 2
5 Comments
 
LVL 10

Expert Comment

by:akhalighi
ID: 36710365
you will write to two disks instead of one , so writing takes a bit more , Reading is the same as single drive.
0
 
LVL 10

Assisted Solution

by:akhalighi
akhalighi earned 250 total points
ID: 36710376
You won't get a better performance but you get fault tolerance , if one drive fails you have an identical drive that can take place and keeps server up and running.
0
 
LVL 70

Expert Comment

by:garycase
ID: 36710459
With most controllers you WILL get a performance boost with reads, as the system can support two simultaneous reads as long as no errors are encountered.     Writes are essentially at the same speed as a single drive, although there can be a small additional delay when doing multiple writes if you're using an unbuffered RAID controller.

Bottom line:   Effectively no difference with writes;  improved speed with reads;  and of course you gain the fault tolerance benefit of no data loss if one of the drives fails.
0
 
LVL 10

Expert Comment

by:akhalighi
ID: 36716926
I don't think Harris question involves hardware raid , it looks like he is looking into basic disk /dynamic disk differences , looks like he talks about software raid within windows.
0
 
LVL 70

Accepted Solution

by:
garycase earned 250 total points
ID: 36716954
Even with integrated RAID controllers, there's still a notable increase in read performance, since multiple reads can occur simultaneously (2 with a 2-disk RAID-1).     Without a buffered hardware controller, however, it's true that writes will have a slight penalty (as I already noted).
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

More and more people are using the enhanced small form-factor pluggable (SFP+) tranceivers, and speed is of utmost importance. Testing of speeds are critical to ensure that the devices will meet the speed requirements. There are some testing challen…
On Beyond Tools A conversation I recently had with the DevOps manager of a major online retailer really made me think about DevOps monitoring tools (https://www.onpage.com/devops-incident-management-tool/). The manager and I discussed how sever…
In this video, viewers are given an introduction to using the Windows 10 Snipping Tool, how to quickly locate it when it's needed and also how make it always available with a single click of a mouse button, by pinning it to the Desktop Task Bar. Int…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…

734 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