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PERC 5/i RAID Card: Tips and Benchmarks - Page 455

post #4541 of 7150
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Quote:
Originally Posted by BLinux View Post
to be honest with you, and this is only my opinion, but i have several machines with PERC5/I, perc5/E, perc6/i, perc6/e and none of them have ever required additional cooling. so, i think OCN people are just a little bit "over the top" when it comes to cooling... nothing wrong with that if you want the "extra margin of safety", but i don't think you need massive amount of CFM to cool these cards.
Here is Intel's thermal guide for the 80333 I/O processor used in the PERC 5/i: http://www.intel.com/design/iio/applnots/306630.htm


My opinion:
Quote:
The Tj maximum temperature is 110C. However, do NOT run the IOP333 passively. The heatsink needs force airflow. Intel's thermal analysis used a heatsink of the same size but with more fins (hence better). However, they require a minimum of 200LFM with there heatsink. Over the surface the PERC stock heatsink, that is at least 4CFM. Do realize that if you used a 80mm fan, you would need a higher CFM rating of around 16CFM. This is assuming that the 80mm fan is next to the HS.
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post #4542 of 7150
question: with a PERC5, does a RAID array of *SATA HDDs appear in windows as a 'normal' drive or *must* it be set-up as a Virtual Disk.. I recently was informed that a single stand-alone SATA HDD *must* be set-up as a Virtual Disk on a PERC5 - just want to know if its the same for a RAID array of SATA HDDs... also, probably a dumb question: PERC5 has Windows 7 x64 drivers yes?

cheers!
post #4543 of 7150
Quote:
Originally Posted by tiro_uspsss View Post
question: with a PERC5, does a RAID array of *SATA HDDs appear in windows as a 'normal' drive or *must* it be set-up as a Virtual Disk.. I recently was informed that a single stand-alone SATA HDD *must* be set-up as a Virtual Disk on a PERC5 - just want to know if its the same for a RAID array of SATA HDDs... also, probably a dumb question: PERC5 has Windows 7 x64 drivers yes?

cheers!
When you create a RAID array, it becomes a virtual disk container at the PERC hardware level. You add physical disks to the virtual disk, select a RAID level based on the amount of disks you add, and it becomes a VD. Then the PERC hardware makes sure Windows sees the VD as a single drive.

Hope this helps.
    
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post #4544 of 7150
When you buy a Perc5/6 card with the tray on it, you can remove it by taking out the screws correct? like this one http://cgi.ebay.com/Dell-PERC-6-i-6i...item20b384319b
post #4545 of 7150
Quote:
Originally Posted by mark076h View Post
When you buy a Perc5/6 card with the tray on it, you can remove it by taking out the screws correct? like this one http://cgi.ebay.com/Dell-PERC-6-i-6i...item20b384319b
Yes - all the server versions of the cards come on that tray, and they are physically the same card (minus the PCI bracket) as the workstation versions.
post #4546 of 7150
Finally getting around to building the Atom 330 server this weekend...

Here is a pic of the current situation: LOL
    
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post #4547 of 7150
System in a Shoebox: The Atom Bomb


Gigabit transfer from RAID0 on my main rig to RAID5 on the atom is approx 89-91 MB/s, about 80% of what the theoretical max is. The Atom 330 CPU pegs at around 30-33% load while doing so. In comparison, when the card was on the same system as the RAID0, I was getting speeds around 300-350 MB/sec between the two, with a CPU utilization (i7@4.0GHz) of 0-2%.

I have both arrays mounted as network drives and they behave exactly the same as you would expect from a locally mounted drive. I upgraded my router to GbE so everything is just as fast as over the crossover I have fed directly into my main rig.

I have removed the linkage between my 1KW PSU and 500W PSU and made it so the 500W PSU is on at all times, controlling the fans and HDDs in the RAID. These HDDs I have left inside my original rig (as you can see, I removed a blowhole fan and routed the SATA wires down through there,and stuck some foil around the opening to reduce EMI... the foil is grounded to the chassis by virtue of being wrapped around the chassis itself).

I have set up this pretty cool program for iPhone called SleepOver, which allows you to Wake on Ethernet over LAN or Internet by sending a magic packet to any port, 3 of which I have forwarded to each of my 3 machines. This way, if any of my machines turn off, or go to sleep, I can easily wake them up from wherever I am (provided I have data signal).


Now I just need to port MegaRaid Storage Manager to iPhone and make my own monitoring app (with Push Notifications, perhaps?)
Edited by DJZeratul - 9/12/10 at 5:06am
    
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post #4548 of 7150
I just bought a perc 5i raid controller and the sata adapters. I'm anxious to set this thing up . All I need to do now is sell my current computer. This thread is almost 500 pages long . Is there anything MAJOR that I should know that has been covered between this post and the first 5 pages?
Edited by MahiMahiMahi - 9/13/10 at 1:49pm
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post #4549 of 7150
Quote:
Originally Posted by MahiMahiMahi View Post
I just bought a perc 5i raid controller and the sata adapters. I'm anxious to set this thing up . All I need to do now is sell my current computer. This thread is almost 500 pages long . Is there anything MAJOR that I should know that has been covered between this post and the first 5 pages?
not really. i wouldn't bother too much with the LSI firmware... just use the Dell firmware for starters. hope your PERC 5 works... i have a stack of them that are missing resisters/capacitors/inductors/etc.... they are rather fragile cards.
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post #4550 of 7150
Quote:
Originally Posted by BLinux View Post
not really. i wouldn't bother too much with the LSI firmware... just use the Dell firmware for starters. hope your PERC 5 works... i have a stack of them that are missing resisters/capacitors/inductors/etc.... they are rather fragile cards.
Ohh it better work . Thanks for the warning.
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