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Raid Help

post #1 of 7
Thread Starter 
I currently own

Samsung 840 250gb(OS)

2x Cruical M4 128gb
Seagate Barracuda 1tb
Seagate Barracuda 3tb

What i would like to to is raid the two SSD's and the two HDD's but my motherboard wont do it without affecting the OS ssd. It only allows ports 1-4 to be RAID once that is selected ports 5&6 will have to go into IDE which removes trim for my OS.

I'm wondering if i was to get a Raid card would it solve the issue if so which one should i get?
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post #2 of 7
You should definitely not RAID the 2 HDDs, as they are not the same. I dont see any reason why you shouldnt be able to RAID the SSDs as long as you use the correct ports. You should be able to change AHCI or IDE to RAID, and then you will have to configure the RAID array by selecting CTRL+M or something like that which your motherboard should prompt for.
post #3 of 7
Thread Starter 
Like I said it only has the option to change ports 1 to 4 not individual. So if 1-4 is set to raid 5-6 can only be raid or IDE.
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post #4 of 7
Thread Starter 
Just thought I'm gussing i could make 5&6 raid for the ssds but it won't solve the hdd issue if I was going to buy another 3tb. Sorry for double post
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post #5 of 7
Just because RAID is enabled, doesnt mean you cant have other drives. I have 2 M4s in RAD, and a single 1TB HDD. If you have any doubts, unplug the OS SSD, plug both your M4s into the 2 ports that support RAID, setup RAID in the BIOS, configure the volume, and then plug your other OS SSD back in. I don't think your OS should have any issues with this setting without reinstalling Windows. Worst case scenario, you can put everything back and no harm done.
post #6 of 7
Thread Starter 
No what im saying is if i enable raid I'll lose trim support for my OS. I was hoping to have sata ports 1-4 set as raid and 5&6 as AHCI for the OS.

Look here click on the picture to enlarge it

As you can see only options for 1-4 are AHCI IDE & Raid
http://imageshack.us/f/560/photojso.jpg/


Once raid is picked you can see only IDE or Raid is available for 5-6 therefore i can't have my OS with AHCI for Trim
http://imageshack.us/f/713/photo1qto.jpg/

So should a raid card help
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post #7 of 7
You should be aware that if you enable any kind of actual raid mode (Raid-0 or Raid-5) that no matter what system you use, it will truncate your larger hard drives to the size of the smallest drive, intel onboard raid does this and all hardware raid cards do this.

For example:

Define raid-0 for 2 x 128gb + 1x1tb + 1x3tb: The raid arrangement will take the first 128gb out of the 1tb and 3tb hard drives and you will end up with 512gb of raid storage, and the unused portion of the larger drives will not be accessible.

The same would happen for raid5.

The only thing you could do would be JBOD mode, which I have heard, will allow you to define a "raid" setup with different sized hard drives and it will 'export' one large volume using all of them to windows, however you would never be able to have raid5 redundancy with this, and I would guess the performance would be quite poor. And you I think you can only do this with a hardware raid controller card. I have never used JBOD mode as it's typically not a viable option. Lower performance than raid-0, no redundancy like raid5, and on top of that when you put your SSD's in any raid configuration, it disables TRIM support.

Generally if you ever do any kind of raid (either hardware raid card or onboard) you always want it to be the same sized drives, and to prevent issues, usually the exact same drives (same model for all of them)
Edited by kithylin - 12/22/12 at 1:29pm
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