CrystalDiskMark will do the job.
Raid is pants...Look inside and help
- Thread starter easyrider
- Start date
CrystalDiskMark will do the job.
what size shall I test?
Installed this
http://downloadcenter.intel.com/con.../19607/a08/iata_cd.exe&lang=eng&Dwnldid=19607
enabled raid, Built the array and got BSOD again.
why are you using windows software raid, surely if your building the array in the intel raid config thing it should be using its "hardware" raid, so windows would only see the one drive?
I know its not really hardware raid btw.
I know its not really hardware raid btw.
Just doing some testing to compare against the controller.
This is weird. When I enabled Raid in the bios and built the array in the raid bios and rebboted I got BSOD even after installing the the RST drivers.
So I went back in and enabled ACHI and rebooted.
I then saw a 1TB disk in disk management and ran some tests
Now its seen as an INTEL Raid volume although I have ACHI enabled in the bios not RAID
Just odd... And look at the burst rate?
Check this out
I named the Array Media in the Raid BIOS
I AM still in ACHI mode now
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maybe were wrong in thinking raid had ahci still and actually ahci has raid in it?
Only reason I can guess as to why its working now.
Your getting much nicer speeds now, might be worth me moving my f1s off the controller card and putting my ssd/optical drive on it, would have to test the ssd speeds on the controller though, dont want that to be getting hampered, but i imagine if not using the raid features it should just pss through and not get slowed down, but might add latency which would suck.
Glad you got it working now, and that it increased speeds so was in fact worth it and not just a waste of time
edit: that burst rate does look high, for crystal disk mark id get a new version and see what happens then, but that seq read speed is obviously not true
Only reason I can guess as to why its working now.
Your getting much nicer speeds now, might be worth me moving my f1s off the controller card and putting my ssd/optical drive on it, would have to test the ssd speeds on the controller though, dont want that to be getting hampered, but i imagine if not using the raid features it should just pss through and not get slowed down, but might add latency which would suck.
Glad you got it working now, and that it increased speeds so was in fact worth it and not just a waste of time
edit: that burst rate does look high, for crystal disk mark id get a new version and see what happens then, but that seq read speed is obviously not true
Last edited:
maybe were wrong in thinking raid had ahci still and actually ahci has raid in it?
Only reason I can guess as to why its working now.
Your getting much nicer speeds now, might be worth me moving my f1s off the controller card and putting my ssd/optical drive on it, would have to test the ssd speeds on the controller though, dont want that to be getting hampered, but i imagine if not using the raid features it should just pss through and not get slowed down, but might add latency which would suck.
Glad you got it working now, and that it increased speeds so was in fact worth it and not just a waste of time
Not sure how this can be though. I don't have raid enabled in the bios only ACHI.
I just left he array alone after I built it. But was amazed to see just one disk in disk management so I just created a simple volume
Is that burst speed normal? I'm a bit scared to be using this setup as it just shouldn't be working
AHCI may just have RAID support included as part of its spec, hence why its working. Your seeing a single disk in disk management because youve configured the array at a lower level below windows, so the controller presents the array to windows as a single drive. In Intel RST app you may be able to see individual drives in the array (I can in Nvidia disk management, and on the SiL software, but windows only thinks I have single drives).
The burst speed is not normal, since its faster than the Sata bandiwtdh is capable of, so its a bit strange.
The burst speed is not normal, since its faster than the Sata bandiwtdh is capable of, so its a bit strange.
Thoughts?
It's write caching, perfectly normal. The read speeds are a better gauge of your sustainable performance.
Soldato
- Joined
- 19 Oct 2006
- Posts
- 3,710
My guess is that you were using the Windows 7 inbuilt AHCI drivers before but after installing the Intel RST it will now use that for AHCI and RAID.
Windows software Raid0 will (usually) be faster than Raid0 with motherboard onboard raid but you cannot boot from it, both are slower than with a dedicated raid car tho.
The reason is that software raid and mobo raid both rely on the CPU to do all the work and when the O/S is accessing something on the stripe it is more CPU efficient for it to be in control of the stripe it is accessing from than for the mobo firmware to be in change of it. Ofc hardware raid is better than both as the array controller does that work instead of the CPU.