RAID 0, RAID 1 or Acronis type protection?

  anskyber 11:14 08 Apr 2006

I am familiar with the principles of RAID with the potential advantages of RAID 1 (mirror) quite obvious. But would it be better to have the full HD memory available and backup with something like Acronis? Does RAID 1 mirror lead to a slowing up of the system as it "double writes"? Any other advice on RAID welcomed.

  anskyber 18:39 08 Apr 2006

Any one before I close?

  anskyber 18:56 08 Apr 2006

I had not thought of that as a problem, but of course it is obvious, if you think about it. The first thought is to say that RAID 1 is not necessarily a prefered option if back up is the objective.

The other consideration is (please forgive my stupidity) where does the OS reside? I assume it is only on one partitioned drive so it would go with a failed drive. Although I assume be able to be reinstalled back onto either (ie new or old ) drive.

  anskyber 19:17 08 Apr 2006

No I do not mind at all. I am retired and I am looking to get the best deal for my money and make it as future proof as possible. My budget is not available yet (!) but a max of £1000 is my best bet. So with Vista in mind even 2 years down the line I was thinking dual core with godd RAM say 2gigs and a reasonable video card. I am not into games (yet) but do use Flight Sim 2004.
So although I would like say an Evesham I think that this Dell with the option of either Raid 0 or Raid 1 for the money looked tempting, unless of course better advice is available! click here

  anskyber 19:26 08 Apr 2006

Thanks. If the PC arrives with RAID 1 (if thats the route I follow) is it easy to go to RAID 10 or am I stuck with the RAID I have been given. Before you ask me I am afraid I have not the foggiest idea whether the RAID control is a hardware or software system.

  anskyber 19:30 08 Apr 2006

Sorry, a supplementary to my response. You say "An image created by Acronis would be distributed between the two drives by the RAID software if you were to reinstall from the backup."
Does that mean it would resemble RAID 0 with a shared writing thereby defeating a mirror system or there would again be two identical copies?

  anskyber 19:36 08 Apr 2006

Thanks for the last posting and I too would be very interested in the debate, if there is one!

  anskyber 19:55 08 Apr 2006

Hmm, this is food for thought. The system I highlighted above on the click here has "only" 2 HDs each of 250Gigs. One 250 would be plenty enough for me so I was trying to assess the advantages of RAID arrays.

As a relative newcomer to PCs the "safety" of RAID 1 in terms of exact copy (thanks gudgulf for the explanation particularly of the OS) was attractive but I wanted to see what downsides there are if any.

  anskyber 22:36 08 Apr 2006

Thank you both. In fact this is an example of the benefits of this site, not just useful strait forward answers but also views on both sides of opinions. It has helped me enormously!

  anskyber 22:52 08 Apr 2006

click here I did just that and what do you know, a nice balanced opinion. So for those who have followed this do read it!

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