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PERC 5/i RAID Card: Tips and Benchmarks - Page 331

post #3301 of 7150
Quote:
Originally Posted by spatchcock View Post
Why don't you wait until borito4 has them in again (around $115 shipped), or don't use Raid6? Most people here say Raid5 is the way to go anyways.
I've just purchased a Perc 5/i from him actually but he's now out of the 6/i's and said it's going to be a few weeks before he gets them in.

I guess I'll just wait but I was hoping to set this up relatively soon which is the only reason I was trying to find an alternative even if it meant paying a little bit extra.

Also, every thread I've posted on RAID 5 versus RAID 6 has just about *everybody* saying to go RAID 6. *shrug*
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post #3302 of 7150
Thread Starter 
Quote:
Originally Posted by sofakng View Post
I've just purchased a Perc 5/i from him actually but he's now out of the 6/i's and said it's going to be a few weeks before he gets them in.

I guess I'll just wait but I was hoping to set this up relatively soon which is the only reason I was trying to find an alternative even if it meant paying a little bit extra.

Also, every thread I've posted on RAID 5 versus RAID 6 has just about *everybody* saying to go RAID 6. *shrug*
RAID6 is just RAID5 with an additional drive for parity. The cost is N-2 in read performance and storage space (as opposed to RAID5's N-1 cost). The benefit is that the array is still usable even with 2 hard drive failures.

If you plan to run a large array with say 5 1.5TB+ drives, the data is important, and you need continous uptime, then RAID6 is recommended.
Edited by DuckieHo - 9/24/09 at 7:06am
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post #3303 of 7150
Quote:
Originally Posted by Stereodude View Post
Pretty much nothing else. They were Intel PCI Pro/1000 MT cards I think.
In what way? I've found the PCIe variety built on to newer motherboards to give much faster data transfers between computers and that's pretty much the most important performance trait.
And, that's exactly where I've seen the difference.
My server motherboard has 2 onboard NICs - 1 PCI & 1 PCIe. I notice no repeatable and significant difference in the transfer rates between either of them.

When I do transfers from my server to my nForce4 onboard NIC, the transfers peak at around 60MB/s.

When I slot in an MT card, my average transfer rate goes up to 80MB/s.

Seems like a significant difference to me.
post #3304 of 7150
Hello all. I'm new to the Perc 5/i world. I recently bought what I thought was a regular Perc 5/i card w/ BBU, but the person who sent it to me didn't send me the BBU. Also, I have found that it's the "Perc 5/i Integrated". Is there a difference between the "Integrated" model and the "other" model?

I am using Windows 7 x64 RTM and I currently dont have drives connected to it yet. The computer boots up, goes through the Perc bios (complains about the battery not being there), then boots into Windows. While in Windows under the Device Manager, I notice that there is a "Co-Processor" with an astrisk. Also, the card shows an error code:


I have also tried installing Dell Vista x64 drivers to no avail. Is there something I'm missing here? Is the card faulty? Thanks in advance for any help.

If it helps, I'm using the following mobo: http://www.newegg.com/Product/Produc...82E16813188035
post #3305 of 7150
Regardless of the merits of either Gbit Lan solution, I will keep my onboard on most of my computers, but purchased the Intel PCI-e card for the server as recommended. Thank you.
post #3306 of 7150
Quote:
Originally Posted by DuckieHo View Post
In sequential large file transfers, discrete and onboard NICs perform about the same. However, latency is another important factor that isn't as easily benchmarked. If you use your server for remote installs and directly access files, a discrete NIC makes a difference.

NVIDIA+Marvell vs Intel+Intel: http://www.linux.com/archive/feature/131340?theme=print
I guess I'd have to do some further testing to take all the variables out of play to make a concrete statement I felt confident in. One of my servers has 2 Realtek 8111C PCIe chips on the motherboard. The other server has two Intel gigabit chips on the motherboard. One uses the CSA port, and the other is on the PCI bus. My main workstation has a Realtek 8111B PCIe chip on board.

What I noticed was that when I replaced my old server (AMD XP 2800+) that used a discrete Intel gigabit NiC with a above mentioned one (E5200) with integrated PCIe 8111C I got much faster transfers through the network to my workstation (8111B) from the same RAID card. However, the RAID card was also on the PCI bus, so that definitely put the old server at a disadvantage.

That PCI RAID card has been replaced by a Perc 5/i so I guess I could try the Intel PCI NiC again against the PCIe Realtek 8111C. I guess I'd also be willing to try an Intel PCIe NiC at the ends and see if they perform better than the Realtek's. FWIW, I am running Windows XP, so I don't know if the drivers are more optimized than in the Linux tests.
post #3307 of 7150
Somebody before used the fan from this on their PERC. Thoughts on my 6/i? I have not removed the stock heatsink yet. Should I:

1. Remove the stock PERC heatsink and add this combo:
>>A. by using the adhesive on the bottom of the new heatsink
>>B. or by using the spring clip from the stock heatsink, and using Arctic silver on the chip and removing the adhesive from the new heatsink
>>C. or by using the spring clip from the stock heatsink, and using the adhesive from the new heatsink
2. Attach this fan to the stock heatsink using self tapping screws (only 2 screws will engage due to width of stock heatsink)
3. Do not use this solution at all
4. Another not listed.

I am leaning towards 1C.

PERC 6/i heatsink is 40mm x 31mm x 10mm.
Cooler Master Blue Ice ($6.99) is:
Heat Sink Dimensions 37.7mm x 37.5mm x 13.0mm
Fan Speed 4500 R.P.M.
Fan Airflow 4.5 CFM
Fan Noise Level (dB-A) 22~26 dBA

You can see the type of mounting in the original coolermaster heatsink.
post #3308 of 7150
Ahh, more perc 5i woes

Card works fine in my evga x58 classified, but no dice in my Gigabyte GA-N650SLI-DS4, even with the pin mod, I can't even get the bios to post.
post #3309 of 7150
Quote:
Originally Posted by tr8rjohnk View Post
I just put together a rig with a perc 6i andi another with a perc 5i and want to add a drive that already contains data to each controller (I don't want to integrate this new drive into an existing array). Thing is, I'm kind of hesitant because I don't want to lose the data on the drive.

How would I set up the card to use the drive "as-is" and keep the data intact?

EDIT: By the way, a perc sub-forum/wiki would be a pretty cool deal.
^ Would I maybe be better off just connecting the data drive to the on-board sata connections?
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post #3310 of 7150
Thread Starter 
Quote:
Originally Posted by dhahlen View Post
Ahh, more perc 5i woes

Card works fine in my evga x58 classified, but no dice in my Gigabyte GA-N650SLI-DS4, even with the pin mod, I can't even get the bios to post.
Is the BIOS up-to-date? Otherwise.... no go...
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