Intel Rapid Storage Technology drivers - Anyone getting slower SATA2 3/GBs speed?

[limitz]

Quote Originally Posted by Grymmie View Post
Take a look at http://rog.asus.com/150372012/news/t...-motherboards/

hmmm...
That was an interesting read. Achieving up to 1,000MB/s read/writes is definitely attractive. Although, I noticed on my particular RAID0 array, that I can only hit that read/write performance when on 11.6 IRST drivers and when on IRST 11.7-12.0.0.1083 I can only achieve 500MB/s read/write performance.

According to IRST User Interface: RAID0 x2 SSD
11.6.0.1030, 11.6.2.1002, 11.6.5.1006
SSD port 0 = 6GB/s, SSD port 1 = 6GB/s (1,000+MB/s read/write):)

11.7.0.1013 through 12.5.0.1066
SSD port 0 = 6GB/s, SSD port 1 = 3GB/s (500MB/s read/write):mad:

Seems the 11.7 and above IRST drivers likes to throttle down the speed of my port 1 SSD to 3GB/s rate, or it is some kind of bug that Intel has broken when fixing other bugs.

Here's how you can check yourself:
1) Open IRST interface in Windows
2) On the left side of interface click Advanced
3) Click on each of your SSD's in SATA_Array_000

Are all of your SSD's in the Array showing SATA Transfer Rate: 6 Gb's?
Are you positive your RAID0 Array is performing as a dual SSD Array should be giving you up to 1,000 Gb's speed rates?

-IRST Drivers-
-I use ATTO Benchmark-

[feniks]

tried 11.6 IRST driver and performance jumped a bit, still however it's worse than on fresh install ... it might sound ridiculous, but it seems that when Windows 8 UEFI installs onto RAID0 volume it creates smaller system/EFI/Restore partitions (than it would in AHCI mode) and that somehow affecttsRAID0 volume speeds later.

other than that no magic here and my RAID0 can't even hit 400MB/s on any category in AS SSD ... DPC Latency playing tricks? 11.0 OROM playing tricks? UEFI IRST SATA driver (11.5) playing tricks? my SSDs suck? hell knows.

tomorrow will try the same on BIOS1 (1604) to rule a few things out.

By the way, BIOS 1707 uses OROM 11.0 and IRST SATA driver 11.5, will see what 1604 reports in those matters and how benchmarks go. I'm afraid it won't get any better and that's just how my SSDs roll 😞

[limitz]

irst 12.5 driver, compression 100% and compression 0-Fill. SSD port1 showing 3Gb/s.

[limitz]

irst 12.5 driver, compression 0-Fill. SSD port1 showing 6Gb/s for a short duration prior to reverting down to 3Gb/s.

TRIM doesn't seem to work with 12.5. Below that rev. yes it TRIMS.
According to http://thessdreview.com/Forums/ssd-discussion/3181.htm

[feniks]

hey buddy, posted in 1707 thread yesterday, but re-posting here.
yesterday at work I encountered "error occured(0)" on one of our HP workstations (model Z210) with 10.5 OROM, it reported a failed RAID1 (mirror) and both drives (WD 1tb black) with this error. it got me really surprised. as I said I have never seen it before and I handled lots of raid arrays in my life.
after removing the drives from broken system, it came up that files were on them no problem (backed up most important stuff), but when I tried taking Acronis image of one of drives it failed with "Read Sector fail" eventually (bad drive). the other drive was good (took image no probs).

My understanding is, after googling a lot, that this error happens only when usually there is at least 1 bad drive in array (raid0) or may appear on both drives in raid1 config (bad sector being mirrored to other). the only other occurrence of this error was happening in past with old Intel Matrix Storage manager 7.6 which was also sometimes conflicting with some early apple itunes (LOL).

so buddy, most likely you have a bad SSD, good call on getting it RMA'd.

also, yeah Fernando (overclock.net) confirmed that IRST 12.5 driver doesn't pass TRIM commands to drives. IRST 12.0 does no problem.

As per my problem, LOL, don't want to jinx it, but it's possible I've been fooled by a quirky SATA cable on port1 (secondary). Last night tested 2x HDD RAID0 and was experiencing a terrible lag in clean Windows 8 (just drivers and win updates installed) on MBR (no GPT for testing purposes). Also IRST marked drive in port1 failed after I took Acronis backup of RAID0, yet Windows was running normally and allowed me to mark that port "as normal" in IRST.
Replaced that cable and so far so good, no more HHD RAID0 lag no more other trouble, HD Tune benchmark also looks different.
Big chance this was the whole culprit with my SSD RAID0 😉

[feniks]

riddle solved here!

a) secondary disk dropping out of RAID0 array was caused by quirky cable, double-checked that with HDD RAID0, replicated the issue, no more after SATA cable replacement.
b) slow RAID0 Seq Read speeds were caused by ... listen up ... mismatched SSD models! it came up that my primary (older) SSD is mislabeled and it came as Mushkin Chronos (async NAND) mdoel but inside the case hides a Chronos Deluxe model (Toggle NAND) - that is confirmed by Mushkin Tech Support LOL ... the raid0 array was simply slowing down to the speed of secondary drive (regular chronos with async NAND).
already sent it back and got the matching deluxe model.

tonight will be re-testing everything on a pair of new cables with latches this time and on a truly matched up SSDs (both with Toggle NAND) this time 😉

[feniks]

now we are talking 😄



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