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trim on raid 0 with x79?
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08-16-2012 11:50 AM
Various tech sites such as Anandtech have an article up about the fact that with the newest RST software that Raid 0 and trim is supported.
Is this available for X79? The X79 of course uses RSTe which has a different version number to the normal RST and the articles do not mention anything about X79 at all
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12-15-2012 12:46 PM
Now Odie, I know you consider socket 1155 CPUs to be older than 2011, and apparently the other 7 series chipsets too, in contrast to X79. True, socket 2011 is newer than 1155, but consider that socket 2011 CPUs are Sandy Bridge E processors.
That makes Ivy Bridge CPUs newer than anything using SB architecture, like SBe, even if the socket is newer. Since IB processors have PCIe 3.0, and SB processors do not, and SBe is, well, you know, so no PCIe 3.0. Also, while the chipset is called X79, it is really a 6 series family chipset. No sarcasm here Odie, you know me somewhat, just saying...
Regarding no TRIM on X79/RSTe, two "reasons" for that, one being Intel has chosen so far to not provide that for 6 series chipsets, and given that X79 is really a 6 series chip, the end. Next, Intel may not believe that TRIM is RAID 0 is important for RSTe, from an enterprise point of view. Enterprise environments use RAID cards, rather than "software" RAID. Also, if Intel is working on RAID 0 TRIM for RSTe, it will take a while since the validation will be much more intensive, with no room for issues in enterprise usage.
Just my take on this situation.
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12-15-2012 06:05 PM
My RAID is finally working with TRIM! No thanks to Asus, but one of the Asus forum members was kind enough to http://rog.asus.com/forum/showthread.php?26501-RIVE-3301-Patched-for-TRIM-in-RAID hack the latest ROM into my BIOS and I have now http://www.station-drivers.com/forum/viewtopic.php?f=32&t=4023 tested and confirmed TRIM working in RAID0 on my x79. The results aren't bad either:
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12-16-2012 02:26 AM
Nice for you, glad it works. Looking at those results, I'm guessing two 256GB Vertex 4's.
I understand that the method that causes this to work is changing a data field in the RSTe Option ROM that identifies the type of chipset/PCH on the board, to that of the other Intel 7 series chipsets that "allows" TRIM to function on a RAID 0 volume. An obvious concern about this is are there any side effects by any other process that reads that data? I'm not saying I know that there will be, and there may be none, but it is a possibility that hopefully will not occur.
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12-16-2012 02:06 PM
You can say anything, I would never take it the wrong way.
It just ticks me off, that the newest socket doesn't have a 3.0 while the 1155 does, WHY.
Don't you agree ? I think they did it so they can get people to buy the SB-E, then come out with Ivy-E and people will run for it because of the 3.0, am I wrong.
I'm confused. I thought the 7 series was for SB on the X79, and the C600 was for server CPU's, on the board, but both used the enterprise RAID rom.
Just so you get what I'm saying, I figured it depended on which CPU was used, depended on which chipset it would work off of, I figured there were two chipset on the X79, a 7 series and a 6.
I sure would like to know what was done to the RAID rom on Luma's BIOS, because Fernando told me not to try and mod the X79 for TRIM because it would cause more problems then its worth.
I have read that Intel is working on the X79 for TRIM in RAID.
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12-16-2012 07:05 PM
Odie, since PCIe 3.0 is on the IB processor die, and not on the SB die, and SBe/2011 is an extension of the SB core architecture, apparently Intel could not add PCIe 3.0 without a major rework. I'm sounding like an Intel apologist here, although my intent is to be objective.
OTOH, Intel does tend to dribble out new features slowly and incrementally. From their perspective, SBe can't have much more than SB 1155, which given the architecture, makes sense. As we know, IB 1155 does not bring much more computing power to the table than SB 1155, so adding PCIe 3.0 to IB 1155 makes it more attractive. Same for IBe. Seems like a plan, which it may be, but none of this really makes you feel better.
All I know off the top of my head is that X79 is more closely related to SB 6 series chipsets than 7 series. My thoughts are since no RAID 0 TRIM on SB/6 series chipset platforms, the same goes for X79. Hopefully X79 will be the exception. If so, that may ruffle the feathers of the standard 6 series platforms users, that includes myself. I moved to 7 series boards for RAID 0 TRIM, although I still have my P67 board, wake from Sleep issues included, which I still like.
I don't see any difference between the basic hack for 6 series platforms that allows RAID 0 TRIM, and what is done for X79. Fake the chipset identification data. If that would potentially cause more issues on X79 systems is beyond me.
