Solved

Legal Considerations for Fault Tolerance

Posted on 2006-11-10
3
975 Views
Last Modified: 2013-12-04
Are there any legal considerations that I must consider when detrmining what is the level of fault tolerance that I will need when developing the fault tolerance redundancy?
0
Comment
Question by:gbsepter
  • 2
3 Comments
 
LVL 9

Accepted Solution

by:
maninblac1 earned 125 total points
ID: 17922678
It depends what you mean by legal.  You'll have to be more specific, are you assuring your client legally that their data is protected?  Which no level of fault tolerance provides, raid 5 allows 1 disk to go out, however that doesn't mean you couldn't lose 2 drives at the same time in a lightening strike.  In that case the legal considerations are for you to handle.  If you assure your client legally they are protected and you lose the data you are liable, not the protection itself.  That is if i understand your question correctly.
0
 

Author Comment

by:gbsepter
ID: 17923056
I quess I am looking more for the way to recognize the role that regulators play prescribing …. assessment criteria and, most importantly, explicitly or implicitly deciding on “fault tolerance” or “residual risk tolerance” criteria. The level of granularity regulators impose on public companies, both big and small, as mandatory requirements has a direct impact on the cost of compliance.
0
 
LVL 9

Expert Comment

by:maninblac1
ID: 17923355
I think i see what you're saying, the cost of compliance for most "fault tolerant" solutions is minimal.  At least minimal in terms of material costs.  The risks of employing the solutions almost always are outweighed by their gains.

For example, a fault tolerant solution, let's assume Raid 5 will perform faster than the non fault tolerant solution of doing nothing.
Therefore it is ideal to select this solution because it provides significant gains with minimal impact and risk.

But if you're trying to decide on policy, well you're now stretching into a touchy area.  Ideally it would be nice if all computers in the world were fault tolerant, however the solutions come with lesser known drawbacks that make them useless in certain environments.

Let's use a desktop for example, if i set up a home PC (using intel raid) with a mirror (raid 1) the controller on that chip sets a special flag on the drive, the flag is a protection flag so that if the drive is removed from the computer it becomes significantly harder to access the data from an outside source.  In this respect, the drive is now locked down to the machine, no other machine will read it without lots of effort.  This may not be ideal if you wanted to move that drive around from machine to machine or server to server.

In essence, many drives get locked down to their controllers (or their models), this makes it a real pain if you're trying to move on to new hardware while keeping the drives intact.

Therefore that kind of solution is not ideal.  If you made it a policy to enforce that type of solution, it could** cause more troubles than it solves.  *note could*

More importantly in a policy of this type isn't the actual solution implemented but the disaster recovery proccess.  Regardless of a firm's level of fault tolerance, 1, 2, 10 backups if they don't have a solution to recover from disaster the backup's are worthless.

Point, a raid 5 can lose one drive and the computer can continue running, between the time a drive is lost and a new one is placed in if anything happens, the data is gone. So what would be more important is a statement something like this, upon a fault it will be successfully recovered and resolved in X days or something like that.  And the clearer the steps that need to be taken are, the higher the reliability is and the lower the liability is.

Mandatory requirements can be dangerous if the mandate doesn't adequatly address the whole regulated area.  Does that make sense, or was i completely off?
0

Featured Post

Highfive + Dolby Voice = No More Audio Complaints!

Poor audio quality is one of the top reasons people don’t use video conferencing. Get the crispest, clearest audio powered by Dolby Voice in every meeting. Highfive and Dolby Voice deliver the best video conferencing and audio experience for every meeting and every room.

Join & Write a Comment

This is a guide to the following problem (not exclusive but here) on Windows: Users need our support and we supporters often use global administrative accounts to do this. Using these accounts safely is a real challenge. Any admin who takes se…
Many people tend to confuse the function of a virus with the one of adware, this misunderstanding of the basic of what each software is and how it operates causes users and organizations to take the wrong security measures that would protect them ag…
Illustrator's Shape Builder tool will let you combine shapes visually and interactively. This video shows the Mac version, but the tool works the same way in Windows. To follow along with this video, you can draw your own shapes or download the file…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

709 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

13 Experts available now in Live!

Get 1:1 Help Now