Quote:
Originally Posted by ddouglass
Did a bit more research on this and Admin is partially right. It is Raid 1 but that is the Mirroring raid. I believe what they were using before was Raid 0 which stripes the data across 2 or more drives but with no parity, thus when one drive fails all data is lost. Raid 5 replaced this which gives you striped data with parity, so losing one drive does not lose the data. Replace the bad drive and the data is recovered. This is best with 3 or more drives and mostly used for servers.
You and Admin have both mentioned using 3 drives. Is this is a better setup than using two? I saw no mention of an exter benifit from using three drives instead of two in any of the articles I read.
Raid 1 (Mirroring) gives you two identical drives where one can take over in the event of a failure of the primary. The best set-up for this would also be to have each drive as the master on separate ribbon cables.
The Adaptec 1200a card that I am using uses Raid 1 for mirroring. I have each of my two drives set as a master on seperate ribbon cables.
http://cms.adaptec.com/en-US/support...aid/AAR-1200A/
There is also a Raid 1 with Duplexing in which you use two drives and two separate controller cards. That gives you total redundancy so that losing a control or losing a drive will not effect operation. More expensive due to the two controllers but more reliable too.
You have got me thinking Jim and I may be joining you in this soon. Certainly couldn't hurt. |
Once I discovered that the method I have been using for four years to copy my C:\ drive to a second drive was leaving me with a second hard drive that was not bootable, I felt I HAD to do something else. I make my living using Hoster and felt I should have a computer setup that gives me a true, on the fly backup of some sort. Raid seems to do this for me.
Now I can see that if the data on my C:\ drive is corupt, it will also be corupt on the second drive, how could it not be?
I use Avast Anti Virus and I'm very very careful about where I go on the web when the machine is online (which is almost never) so the chance of data coruption should be very very low. Also I scan the drive (now drives) regularly and defrag them on a regular basis. How much can we do to avoid data coruption anyway? If my drives became corrupt, I would pull out my backup drive, buy a second one, rebuid the array and carry on. We can only do so much.
The main benifit of using Raid that I see as valuable is the fact that a C:\ drive failure would not shut down my show. This is all new to me so any suggestions on having a "better Raid system" is greatly appreciated.
Thanks
Jim
