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Is it a normal result for RAID 0 mushkin chronos 240GB? - Page 5

post #41 of 74
Quote:
Originally Posted by Unit Igor View Post


Every Toggle NAND is automatically a type of synchronous NAND (because its kind of a enhanced synchronous technology).
About theory to avoid asynchronous drives for now if you want RAID 0.
I am not talking about any theory here,i am just thinking loud.
And his drives definitely need to hit at least 900 mb/s in AS-SSD,but i dont know whats wrong with them.

I just realized that Samsung 840 Pro is also a Toggle NAND type, according to link you posted ... so the problem is elsewhere. he's got MBR instalaltion, I have GPT installation.
since he's got the same board and BIOS as I do, I bet the stock OROM 11.0.1339 (carried in stock BIOS 1707) is bugged!
post #42 of 74
Here it is.
Driver 11.2.0.1006,orom 11.0.0.1013,4.5ghz

Driver 11.2.0.1006,orom 11.5.0.1582,4.5ghz

Edited by Unit Igor - 4/2/13 at 10:35am
post #43 of 74
thanks Unit Igor, that proves that definitely there is some kind of a problem on MVE with latest BIOS.
I am not 100% sure yet, but I think the specific OROM 11.0.1339 with BIOS 1707 on MVE might be the culprit? really not sure, it's just a guess, but so far this is the only thing in common.

I no longer have the secondary SSD to test, but all I can do on my end is to put 2x HDD 1TB in RAID0 and see if they also perform below single drive specs while in raid0. then I can update BIOS to modded OROM (e.g. 12.5) and test again.
however, I won't be able to see SSD RAID0 performance until next week.
Edited by feniks - 4/2/13 at 12:04pm
post #44 of 74
Just to rule out the stupid little things...

Are you installing the Intel RST F6 x64 Driver during Windows 7 setup?
post #45 of 74
Quote:
Originally Posted by LuckyDuck69 View Post

Just to rule out the stupid little things...

Are you installing the Intel RST F6 x64 Driver during Windows 7 setup?

I tried a fresh install with F6 drivers. I was using F6 drivers (IRST 11.7 x64 F6 package from Intel Downloads) during windows 8 x64 installation in EFI mode onto RAID0. same result, super slow Seq Read in RAID0 in AS SSD. Actually the write speeds improved a bit (10-20% up), but Read was same bad as with win8 AHCI (converted to RAID bootable) image restored from backup.
post #46 of 74
Quote:
Originally Posted by feniks View Post

I tried a fresh install with F6 drivers. I was using F6 drivers (IRST 11.7 x64 F6 package from Intel Downloads) during windows 8 x64 installation in EFI mode onto RAID0. same result, super slow Seq Read in RAID0 in AS SSD. Actually the write speeds improved a bit (10-20% up), but Read was same bad as with win8 AHCI (converted to RAID bootable) image restored from backup.

Interesting. So does the Windows 8 setup allow the installation of the x64 Driver? Because Windows 7 setup flags it due to be unsigned. I was just wondering how you were getting around that.

If we use the same install method it would help researching this.
Edited by LuckyDuck69 - 4/2/13 at 5:02pm
post #47 of 74
Quote:
Originally Posted by LuckyDuck69 View Post

Interesting. So does the Windows 8 setup allow the installation of the x64 Driver? Because Windows 7 setup flags it due to be unsigned. I was just wondering how you were getting around that.

If we use the same install method it would help researching this.

yes. windows 8x 64 allowed me to use the F6 driver without much trouble in EFI install mode. haven't tried MBR install on RAID0 yet.
will play around with a pair of HDDs in RAID0 later.
post #48 of 74
I didn't find uefi helped me with anything really. Boot may have been quicker but I don't measure it so not sure. I know I had to use 3 partitions, not too fond of that.

In R0 on w8 you do not need to load f6 drivers, the OS can see the array to write to, unlike w7.
post #49 of 74
Yeah uefi boot doesnt provide much on top of 2tb+ partitions and much faster boot times.
However I like testing new techs and not fond of running stuff t hat nowadays is called legacy hehe.

For me win8 can see the raid0 only if running legacy mode, mbr installation. If running uefi with csm disabled then it cant see the raid array and needs f6 drivers. Tried both.

LoL as per my problem with slow raid and secondary drive dropouts on bios reflash ... it might have been something as easy as quirky sata cable. Last night installed raid0 on a spare pair of sata2 hdds. Learned quickly that something was wrong, I had big lag and once after running acronis backup, noficed that irst marked drive in port1 as failed, yet windows was running. Replaced the cable and no more lag, benchmark in hd tune looks different too.
Wondering if that was the culprit of my ssd raid0 grief...
Quote:
Originally Posted by DooRules View Post

I didn't find uefi helped me with anything really. Boot may have been quicker but I don't measure it so not sure. I know I had to use 3 partitions, not too fond of that.

In R0 on w8 you do not need to load f6 drivers, the OS can see the array to write to, unlike w7.
post #50 of 74
Yeah uefi boot doesnt provide much on top of 2tb+ partitions and much faster boot times.
However I like testing new techs and not fond of running stuff t hat nowadays is called legacy hehe.

For me win8 can see the raid0 only if running legacy mode, mbr installation. If running uefi with csm disabled then it cant see the raid array and needs f6 drivers. Tried both.

LoL as per my problem with slow raid and secondary drive dropouts on bios reflash ... it might have been something as easy as quirky sata cable. Last night installed raid0 on a spare pair of sata2 hdds. Learned quickly that something was wrong, I had big lag and once after running acronis backup, noficed that irst marked drive in port1 as failed, yet windows was running. Replaced the cable and no more lag, benchmark in hd tune looks different too.
Wondering if that was the culprit of my ssd raid0 grief...
Quote:
Originally Posted by DooRules View Post

I didn't find uefi helped me with anything really. Boot may have been quicker but I don't measure it so not sure. I know I had to use 3 partitions, not too fond of that.

In R0 on w8 you do not need to load f6 drivers, the OS can see the array to write to, unlike w7.
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