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What Is Raid?


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#1 chef_franks

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Posted 19 March 2008 - 10:40 AM

i have 2 hdd's now do i want to run raid? i see everyone talking about it. is that something i can do now taht my first drive is full and my second drive is empty? and how do i get stuff to save to my second drive?
thanks
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#2 smurfgod

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Posted 19 March 2008 - 10:55 AM

You're talking SATA drives right? with the black plug, not the wide thing grey strip. On the off chance they are IDE *with the grey strip* just set the jumper of the new drive to slave and plug it into the middle plug on the strip. I'm new to SATA drives myself, so i'll bail on the real RAID question.
To save to the second drive all you have to do is browse to it when you are saving/installing things. On a sidenote tho your setup will run better if you free up as much space on the main drive with Windows on it as you can then run disk cleanup and defrag it.

#3 dc3

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Posted 19 March 2008 - 11:46 AM

The point of a RAID array is that you can have a faster system by using two or more hdds. The information on the RAID 0 array stipes the information between the two which makes it faster to retrieve information. Older computers that use IDE (ATA or PATA) usually will require a PCI RAID controller, newer motherboards can do this through the BIOS.

There is so much information about RAID arrays that I couldn't cover all of it here, so to further assist you try reading the information in this article.

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#4 hamluis

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Posted 19 March 2008 - 11:55 AM

You can just move data files (not programs and not Windows) to your second hard drive, once that drive is formatted and partitioned.

What are the stated sizes of these two hard drives? How much free space is left on the C: partition/drive?

You don't seem to understand fundamentals very well...my advice would be to forget about RAID for now, it will always be available later.

Louis

#5 chef_franks

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Posted 19 March 2008 - 03:28 PM

ok my first drive is a 40 gb wth about 400 mg available so i cant even defrag. the second drive is another 40. its already formated and recognized. these are both IDE. i just bought a 250 gb that i havent installed yet. its sata. my wifes brother who is good at this stuff bleeped with the bios and couldnt get this one to work so i just put in the other 40. i would liek to have all three. the 250 sata comes up as working properly in add hardware but doesnt show up on my computer so i cant format it.

#6 DaChew

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Posted 19 March 2008 - 03:40 PM

right click on my computer>>>manage>>disk management

you have to initialize and format a new drive for windows to see it
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#7 squall_1981

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Posted 22 March 2008 - 12:27 AM

You will not notice a speed increase off of two hard drives, only 4 or more drives. It uses more computer resources to write the same data onto more than one drive. The main purpose of RAID is for data security in case one drive fails. Therefore RAID is better suited for servers and computers dealing with large volumes of important data. I believe it is kind of silly to do at home unless you have unlimited financial resources and a very good reason to do it. I believe many people do it for bragging rights. Same reason people put 8GB of RAM in a 32 bit operating system.

#8 chef_franks

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Posted 25 March 2008 - 10:26 AM

ok think i figured it out. im returning the sata 250 to newegg and getting another IDE my friend said then it should work. and im not gonna set it up as a RAID. thanks everyone.

#9 smurfgod

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Posted 25 March 2008 - 06:40 PM

I'm probably wrong here, but i thought a RAID setup writes pieces of info to each drive, treating it like one huge drive? If that is the case then i would think that one HDD in the setup failing would screw the entire pooch since pieces of each program would be on the dead drive?

#10 hamluis

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Posted 25 March 2008 - 07:05 PM

You both are correct...there are varying types of RAID. You describe a RAID 0, while Squall describes a RAID 1.

http://en.wikipedia.org/wiki/RAID

Louis

#11 garmanma

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Posted 25 March 2008 - 08:19 PM

Another thing to remember if I recall correctly, is the capacity of the drives. If you use a 40, 80 and a 250 gig drive in a RAID array, The capacity of all drives will be that of the smallest, ie. 40 gig
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#12 ACS Data Recovery

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Posted 28 March 2008 - 11:00 AM

With two drives you are limited to either RAID 0 (striped set) or RAID 1 (mirrored). One thing to keep in mind is that RAID is not a recommended form of backup or data protection, even when utilizing RAID 1 mirroring. Unless you plan on backing up regularly, I would highly advise against utilizing RAID 0. If one drive has a major mechanical failure in a RAID 0 that results in platter scoring, then there is no way your data is going to be recovered, except for maybe some small data fragments (usually less than 64kb in size).

In RAID 1, you can still have issues where there is file system corruption that propagates over to the mirrored drive. In any case, make sure you utilize a regular backup procedure.
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#13 chef_franks

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Posted 29 March 2008 - 12:34 AM

ok thanks everyone. im not gonna raid how do i end this topic?

#14 usasma

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Posted 29 March 2008 - 06:22 AM

No need to end it, we can leave it sit here so someone with a similar question can find it when they search. That's the spirit of the online communities! :thumbsup:
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