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Raid???

post #1 of 15
Thread Starter 
Im curious to know what RAID does or how i can use it, can you guys help me.

I think it means i can add more HDD in a pci slot, but which pci slot do they commonly go in. Isn't a raid card for when you already use all of your sata ports on your mobo??

Thanks guys..

I have a 780i mobo, and want to add more HDDs in my antec 1200....

Im unsure in what raid card i need, but id like to be able to use seagate's 1.5T hard drives

Any advice to educate me....
thanks
OverKill
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OverKill
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post #2 of 15
From what I understand your board should be able to raid the drives you already have. My 680i has 6 sata ports and it can raid them without having to use a raid card. Also, I think there is a limit as to how much capacity you can raid. I want to say its 3 terabytes but I'm going to have to double check.

Do you know what type of raid setup you are going to need? 0 or 1?
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post #3 of 15
RAID-0 Stripes the data beween 2 or more drives giving you more speed and the combined size of the number of drives X the size of the smallest drive so if raid 2 320GB drives you will have 640GB but if you raid 1 320GB and 1250GB you will only have 500GB , but if any 1 drives dies then all of your data is gone
RAID-1 mirrors the data between 2 drives giving you the same speed and size of 1 drive but if 1 drive fails you still have a backup of all the data
RAID-5 stripes the data across 3 or more drives and provides data parity you will have more speed and if 1 drive fails you can still use the rest until you can rebuild the array with a new drive, total space will be 1 drive less than the total drives in the array
RAID-0+1 is basicly a mirrored pair of RAID-0 drives this requires 4 drives with the total space equal to 2 of the drives
JBOD Just A Bunch Of Discs creates 1 large drive so instead of seeing C, D, E, F drives in my computer you would only see C with the size of all the drives if 1 drive fails you lose all the data
these are the main RAID configs that you will see
The is no limit on capacity for RAID just what your OS can see, 2TB per parition for vista IIRC
post #4 of 15
Thread Starter 
i dont know anything, thats why im asking, lol

all i can tell you is i have a 780i mobo, with 3 drives hooked up, one 500g and two 1tb, with an optical drive, and the sata connector hooked to it from the antec 1200, but i have 6 other slots to fill in my case, so i thought raid is what i could use...
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OverKill
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post #5 of 15
Thread Starter 
Quote:
Originally Posted by Bitemarks and bloodstains View Post
RAID-0 Stripes the data beween 2 or more drives giving you more speed and the combined size of the number of drives X the size of the smallest drive so if raid 2 320GB drives you will have 640GB but if you raid 1 320GB and 1250GB you will only have 500GB , but if any 1 drives dies then all of your data is gone
RAID-1 mirrors the data between 2 drives giving you the same speed and size of 1 drive but if 1 drive fails you still have a backup of all the data
RAID-5 stripes the data across 3 or more drives and provides data parity you will have more speed and if 1 drive fails you can still use the rest until you can rebuild the array with a new drive
RAID-0+1 is basicly a mirrored pair of RAID-0 drives this requires 4 drives with the total space equal to 2 of the drives
JBOD Just A Bunch Of Discs creates 1 large drive so instead of seeing C, D, E, F drives in my computer you would only see C with the size of all the drives if 1 drive fails you lose all the data
these are the main RAID configs that you will see
The is no limit on capacity for RAID just what your OS can see, 2TB per parition for vista IIRC


thanks man, that explains alot!!!!

but if i do a JBOD, and if one drive fails, how does all the data disappear off all the other ones???
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OverKill
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post #6 of 15
It doesn't disappear, just partially disappeared, you try and run an executable with only 3/4 of the code.
It's just the way file systems work
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post #7 of 15
Thread Starter 
wow, raid is confusing, lol
OverKill
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OverKill
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post #8 of 15
JBOD isn't really a Raid array...the only reason why some people run JBOD is they need a large "continuous" amount of space thats larger than the drive itself....for a file that is this large...

Thats the part where you would lose the data on all the drive with that file...get it...

Otherwise if you used it for small files you would be able to recover most files on all other drives that are still ok. Just any files that are are split between the failed drive and a working drive would be lost.

Also...JBOD offers no performance gain. So don't use it.

Stick to Raid 0 for performance and use a large 3rd drive for backing up the raid array.

Looking at your setup you if you want raid should get another 250gb drive...backup your important files to the TB drive, and setup raid 0 and reinstall your OS.
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post #9 of 15
Thread Starter 
what raid card should i use??
OverKill
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OverKill
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post #10 of 15
none just use RAID on your motherboards sata ports, Im not sure how to do this on the 780s but it will be similar to this enable RAID in bios then a RAID screen will come up next you boot press whatever keys it says and set up the array
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