Solved

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

Posted on 2011-09-27
5
225 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
  • 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

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

Memory (not to be confused with Hard Drive Space) can greatly increase the performance of a computer. Each version of Window has greater demands on memory. My personal recommendation to get decent performance out of a machine is as follows: Windows…
Great sound, comfort and fit, excellent build quality, versatility, compatibility. These are just some of the many reasons for choosing a headset from Sennheiser.
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
Migrating to Microsoft Office 365 is becoming increasingly popular for organizations both large and small. If you have made the leap to Microsoft’s cloud platform, you know that you will need to create a corporate email signature for your Office 365…

910 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

23 Experts available now in Live!

Get 1:1 Help Now