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[Build Log] Operation Pikachu - Page 6

post #51 of 112
Thread Starter 
Quote:
Originally Posted by sweffymo View Post
RAID 50
Parity
Striping (like RAID 10)
Faster than RAID 5
More usable space than RAID 10



Those things are awesome. My friend has one.
What RAID controller should I get for RAID 50?
post #52 of 112
Yeah I guess I keep forgetting you have 6 disks so 50 would work. Damn I gotta get a raise.

Anyhow I would find out what card Leo is talking about. I wasn't expecting anyone to figure out trim on HW raid cards for a while so I was surprised to hear it, plus my google skills haven't turned anything up yet.
     
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post #53 of 112
Quote:
Originally Posted by stren View Post
It seems that the ICH10R might only pass trim to drives that are set to raid in the bios, but are *not* in a raid array. I have no idea why intel would do this. I wonder if this is to do software raid and still pass trim, but software raid wouldn't require the drives to be marked as RAID anyway would they?
Neither hardware nor software RAID pass on TRIM to the drives, even though the OS effectively enables TRIM once it detects that the hard drive has a rotational disc speed of zero. For this reason, I believe it's a hardware limitation (something about how the RAID controller recognizes the drives). Basically, I am under the impression that we will have to wait for a new generation of RAID controllers before you can implement both RAID and TRIM. I have also heard that both Adaptec and Areca are working on these new controllers, but nothing about when they will be released to the consumer market.

Quote:
Originally Posted by stren View Post
Yes it will be a huge bottle neck, but so will not having trim on a C300. The revodrive has much better garbage control than the C300.
That's a very old review. Crucial had some firmware issues right after the drive was put out (note that the firmware they were testing with was .0002), but now they have the drive working better than ever on Firmware .0006.

Quote:
Originally Posted by stren View Post
Sure the ich10r supports raid 5 but that doesn't mean it's a good idea to use RAID 5 on it. The ich10r is effectively a SW controller, that's why when I read about it handling raid and trim I thought it made sense. It also means it'll be using your processor to generate the parity. A real raid card has a dedicated processor to generate the parity for you. Raid 0/1/10 doesn't use much processing power.
I never said it was a good idea. You said:
Quote:
Originally Posted by stren View Post
If you are using the ich10r for raid you have to stay away from parity because it can't handle it, i.e no raid 5 or 50.
I replied saying that it does, in fact, support RAID 5, but:
Quote:
Originally Posted by thisischuck01 View Post
The OP would be an idiot not to get a dedicated RAID card.
Also, either RAID 0 or 50 would be the way to go if you wanted the greatest speed.

Quote:
Originally Posted by stren View Post
P.S. Leo you got a link to the Areca card? I'm going to need some of those once my boss let's me spend money again.
Still looking for some proof, Leo.
-----
OP, instead of getting Noctua NT-H1 thermal paste, I would either get some Shin-Etsu or IC7 Diamond.
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post #54 of 112
Quote:
Originally Posted by thisischuck01 View Post
Neither hardware nor software RAID pass on TRIM to the drives, even though the OS effectively enables TRIM once it detects that the hard drive has a rotational disc speed of zero. For this reason, I believe it's a hardware limitation (something about how the RAID controller recognizes the drives). Basically, I am under the impression that we will have to wait for a new generation of RAID controllers before you can implement both RAID and TRIM. I have also heard that both Adaptec and Areca are working on these new controllers, but nothing about when they will be released to the consumer market.
I believe you can get it to work on linux with the latest kernel, but it's not exactly for the feint hearted:

http://www.ocztechnologyforum.com/fo...pport-on-Linux

You'd probably want to use multiple controllers in order to avoid the bottlenecks.

Also when I said ich10r couldn't handle RAID 5, I didn't mean that it couldn't support it, just that it will be much slower than you would expect

Assuming there is no Areca raid contoller with trim, then you could look at the LSI 9240-8i - not a bad card if you're budget limited. Otherwise for a really good card expect to pay 700+, check out 3ware/adaptec/areca/lsi etc. The differences in price will reflect the number of ports, the processing power, features and the cache size. You don't need many ports or features, what you're mainly concerned with is throughput. For more insight I would post specifically in the raid subsection.
Edited by stren - 1/22/11 at 10:28am
     
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post #55 of 112
Quote:
Originally Posted by Rlin View Post
What RAID controller should I get for RAID 50?
http://h30094.www3.hp.com/product/sk...tno/462834-B21

This is the only one I can find that's not exorbitantly expensive.

I don't know much about RAID controllers though. Might want to check the RAID section, as stren has said.
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post #56 of 112
Thread Starter 
Quote:
Originally Posted by stren View Post
For more insight I would post specifically in the raid subsection.
Quote:
Originally Posted by sweffymo View Post
Might want to check the RAID section, as stren has said.
I posted, but barely anyone checks the RAID section.

This.
post #57 of 112
Quote:
Originally Posted by Rlin View Post
I posted, but barely anyone checks the RAID section.

This.
Be patient, someone will find your thread
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post #58 of 112
New Areca Model supports Trim.. and Perc6i With Modded bios.
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post #59 of 112
Quote:
Originally Posted by leo013087 View Post
New Areca Model supports Trim.. and Perc6i With Modded bios.
We were hoping you knew what model...
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post #60 of 112
Quote:
Originally Posted by sweffymo View Post
We were hoping you knew what model...
^What he said.
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