Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I am not sure if this is possible or even reccomended...

I did have 1 web server which is basically used just to handle file uploads (around 130+ per day, and average of 100mb each).

I now have a backup server in place on the same network which basically just mirrors the files uploaded in case of a disk failure.

I have done a little thinking and thought it seemed like a waste of a server just being used to store files dormantly, would it be possible to load balance these 2 servers to share the load.

I know i would need to keep the uploaded data in sync between the 2 servers, but is there some software which can load balance with just 2 machines?

They are both running Windows Server 2003 if that makes any difference.

Thank you!

share|improve this question

1 Answer 1

up vote 1 down vote accepted

would it be possible to load balance these 2 servers to share the load

Well, are you sure that's not unwanted complexity? As you describe your setup, I imagine your single server is never breaking a sweat. You seem to have a need for data security and uptime, not for additional capacity.

is there some software which can load balance with just 2 machines?

Windows Network Load Balacing (NLB) comes built-in with Windows Server. It's a load balancing / high availability solution that works at the IP layer. NLB would probably be the first pick for your needs. I don't know how a fail-over in the middle of a file upload would be handled (you didn't specify which protocol is used). My guess is that the transfer would time out and have to be re-started manually.

share|improve this answer
    
Sorry I did forget to mention that the server is being used to download all these files / stream them (they are mp3 files). At busy periods there is around 250+ active connections downloading / streaming which is why I think load balancing could help here. If a server was to go down during an upload and the upload / stream cancelled then I can live with that, as long as when they tried again after it would automatically switch to the other server. –  Paul Hinett Feb 21 '10 at 13:04
    
@Paul: OK; take a look at ARR together with NLB; or NLB alone. learn.iis.net/page.aspx/511/… –  Jesper Mortensen Feb 22 '10 at 0:15
    
I beleive ARR is only available on Windows Server 2008 (IIS7)? –  Paul Hinett Feb 22 '10 at 21:51
    
@Paul: I thought ARR 1 was available for IIS6; but I had that wrong. NLB can still do basic load balancing of static files on (TCP/)IP level (share 1 IP between 2 PCs) without ARR. If you don't like NLB, then there are several open source Unix load balancers (nginx, HAProxy), and not-that-expensive appliances (Coyote Point, Kemp). Pls consider updating your question / get it upvoted, and generally remember to use the voting system on this site. HTH. –  Jesper Mortensen Feb 23 '10 at 6:01
    
Thank you for the information...will do some more investigating on windows NLB. –  Paul Hinett Feb 24 '10 at 3:32

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.