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PERC 5/i RAID Card: Tips and Benchmarks - Page 36

post #351 of 7276
Ordered cables + extra RAM!

Hopefully this weekend I will have results of 4-way RAID 0 of NVIDIA Onboard RAID versus PERC5/i RAID.

EDIT: how mandatory is extra cooling? Should I not run the card without the extra copper HSF's?
    
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post #352 of 7276
ok... Adaptive Read Ahead and Write Back enabled...but I still expect more

post #353 of 7276
Quote:
Originally Posted by XFreeRollerX View Post
Ordered cables + extra RAM!

Hopefully this weekend I will have results of 4-way RAID 0 of NVIDIA Onboard RAID versus PERC5/i RAID.

EDIT: how mandatory is extra cooling? Should I not run the card without the extra copper HSF's?
Either get extra HSFs or point a fan directly at it. Whichever way works better for you.
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post #354 of 7276
Just a quick question when you flash the card with the LSI firmware does anybody's still say its a perc5i? I change the driver to the LSI but Vista still want to install the PREC5i driver back.
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post #355 of 7276
Thread Starter 
Quote:
Originally Posted by 00235689 View Post
ok... Adaptive Read Ahead and Write Back enabled...but I still expect more
You get a near linear increase in HD performance. You're only running two drives? A RAID card can't ever make your HDs performance better than 100%. If you expected more than 100% gain, then you were expecting too much....

i.e. Onboard RAID performance decreases per drive as you add more hard drives. Discrete cards can maintain a near linear increase.
Once again...
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post #356 of 7276
Quote:
Originally Posted by ounderfla69 View Post
Just a quick question when you flash the card with the LSI firmware does anybody's still say its a perc5i? I change the driver to the LSI but Vista still want to install the PREC5i driver back.
Yes, it will always report as a Dell, but will use the LSI driver. You do need to force the driver install, and yes windows will give you a warning that the driver is not made for the hardware, but it is. I have no issues with the newest LSI firmware/driver (just released a new one a couple weeks ago, if I remember correctly) under Vista Ulti. SP1 x64.
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post #357 of 7276
...
Edited by SFaznSpEEdSTeR - 10/15/08 at 4:27am
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post #358 of 7276
Quote:
Originally Posted by DuckieHo View Post
You get a near linear increase in HD performance. You're only running two drives? A RAID card can't ever make your HDs performance better than 100%. If you expected more than 100% gain, then you were expecting too much....

i.e. Onboard RAID performance decreases per drive as you add more hard drives. Discrete cards can maintain a near linear increase.
no you not understand(maeby my poor eng.) but I means ...I expect much more from real "life" usage. I see better performance only in synthetic benchs and not in real usage like loading games. Only benefit I see... ist been first time when I watch full Hd movie without cutting...but nothing more.
Before 5-6 years I use raid 0 with 40GB WD(integrated raid) and in that time speed and performace was been significant compare to one hdd. But this time ...
post #359 of 7276
Quote:
Originally Posted by 00235689 View Post
no you not understand(maeby my poor eng.) but I means ...I expect much more from real "life" usage. I see better performance only in synthetic benchs and not in real usage like loading games. Only benefit I see... ist been first time when I watch full Hd movie without cutting...but nothing more.
Before 5-6 years I use raid 0 with 40GB WD(integrated raid) and in that time speed and performace was been significant compare to one hdd. But this time ...

Because the HDD is the slowest part - so when you go from one HDD to two HDDs you double the speed. But if the HDDs are already working slower than the controller can process the data getting a new card won't matter. That's why a separate controller isn't worth the money unless you want RAID5/6 or 4+ hard drives.

With only 2 hard drives in RAID0 you will only get a very small improvement, like you see.
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post #360 of 7276
So after reading this thread, I jumped on ebay and bought a PERC 5/i. It arrived today and it seems to be in good working order for the most part, except for the following issue.

The card seems to work properly only once per cold boot. For example, when I turn off the PSU and insert the PERC, it'll display its management options right after POST and be recognized by Windows and the LSI MegaRaid storage manager. However, after a reboot, it's like the card stops functioning. It doesn't display any management options after POST, Windows detects it but with an error code of 10 (unable to start the device) and the MegaRaid storage manager states that it doesn't detect any controllers. The only way to get it operational again is by turning off the PSU and reseating the controller it seems.

Do you guys have any insight into what I can do to fix this? I have this motherboard: http://www.newegg.com/Product/Produc...82E16813128335 which uses the AMD 780G northbridge and the AMD SB700 southbridge. I haven't tried the pin mod yet but I'm headed in that direction. What do you guys think? Thanks.

Also, a few people have asked about using this controller with the Seagate 1.5TB drives. Once I get it working properly, I'll be running a 4x1.5TB RAID5 array on it, so I'll run some benchmarks and add to this great thread.
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