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PERC 5/i RAID Card: Tips and Benchmarks - Page 226

post #2251 of 7150
Quote:
Originally Posted by clubhouse
[...]
- 4x SAS Seagate Cheetah 15k.6 300 Gb in RAID 10, all connected to the Perc5i through 1 cable
[...]
I think you should have better results with RAID 5 from all four drives ...
Edited by RobiNet - 4/22/09 at 2:17pm
post #2252 of 7150
briarbiz: I can't say for certain, but it should still definitely post with the tape mod imho. If its not too much trouble double check the taping. is only pins 5/6.
post #2253 of 7150
Quote:
Originally Posted by rampage101 View Post
briarbiz: I can't say for certain, but it should still definitely post with the tape mod imho. If its not too much trouble double check the taping. is only pins 5/6.

OK, double checked pin mod... still no post. It shows in windows, but not in boot...
post #2254 of 7150
OK, so I removed the RAM and then cold booted. Got an error message from the perc5i about ram removal. So I thought perhaps I had a bad dimm...

Then I plugged in my BBU and no error came up.

Is there a command to enter into the perc bios? I get no display whatsoever from it on boot...
post #2255 of 7150
Hi guys,

I must say that I was searching for SATA/SAS RAID controller which is supported by VMware, and I found this thread. Spend some time reading it and ended up on eBay purchasing refurbished PERC 5/i for $105 with BBU, and 15 minutes later ordered second one from the same seller. Very happy with purchase, controllers came sealed in the bag with mounting bracket.

Anyway, the question is how to cool this thing? My Areca 1220 uses the same IOP 333 and it is cool enough with small fan on top of radiator. So I got one 40mm fan from here:
http://www.newegg.com/Product/Produc...82E16835185039
which I'm going to hook up somehow to big heatsink. The question is is there any connector on the board which I can use to feed it? There is 4-pin white connector on the bottom, I did try to connect the fan to it but id did not work the way it was connected. Does anybody know how can I accomplish this?

Thank you.
post #2256 of 7150
Quote:
Originally Posted by inseek View Post
Hi guys,

I must say that I was searching for SATA/SAS RAID controller which is supported by VMware, and I found this thread. Spend some time reading it and ended up on eBay purchasing refurbished PERC 5/i for $105 with BBU, and 15 minutes later ordered second one from the same seller. Very happy with purchase, controllers came sealed in the bag with mounting bracket.

Anyway, the question is how to cool this thing? My Areca 1220 uses the same IOP 333 and it is cool enough with small fan on top of radiator. So I got one 40mm fan from here:
http://www.newegg.com/Product/Produc...82E16835185039
which I'm going to hook up somehow to big heatsink. The question is is there any connector on the board which I can use to feed it? There is 4-pin white connector on the bottom, I did try to connect the fan to it but id did not work the way it was connected. Does anybody know how can I accomplish this?

Thank you.
Power the fan using your motherboard's fan headers or direct from the power supply. There isn't a way to power a fan using the card.
    
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post #2257 of 7150
briarbiz: are you able to try a different motherboard? Do you have anyone near you?
post #2258 of 7150
Quote:
Originally Posted by clubhouse
4x SAS Seagate Cheetah 15k.6 300 Gb in RAID 10, all connected to the Perc5i through 1 cable
Quote:
Originally Posted by RobiNet View Post
I think you should have better results with RAID 5 from all four drives ...
Well, unfortunately no... I thought that would be the case, but here are the results in RAID5:

Benchmark block size 64k, ARA and Write-Back enabled

RAID5 strip size 32k


RAID5 strip size 64k


So in conclusion:



As I can afford losing 50% of my hard drive space, and I would be able to better manage a degraded state if any of the hard drives dies, I'm obviously gonna go for RAID10. And the best compromise looks to be a 32k strip size...

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post #2259 of 7150
Quote:
Originally Posted by clubhouse View Post
As I can afford losing 50% of my hard drive space, and I would be able to better manage a degraded state if any of the hard drives dies, I'm obviously gonna go for RAID10. And the best compromise looks to be a 32k strip size...
And I forgot to add: if read results in RAID5 are below RAID10, I don't wanna know where the write results would be

Also, I actually taped the 5th and 6th pin of the Perc5i as I noticed my 6 Gb of RAM suddenly became 4 Gb during POST. So better not take any risks with my Intel X58 chipset, got it taped and it's working well now.


EDIT:Some additional charts to comfort me in my RAID10 32k choice







Edited by clubhouse - 4/23/09 at 3:42am
    
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CPUMotherboardGraphicsRAM
Core i7 920 Asus P6T WS Pro Asus EAH4350 fanless Corsair Dominator 6Gb DDR3-1600 
Hard DriveHard DriveOSMonitor
Perc5i + 4x300 Gb SAS Seagate Cheetah 15k.6 Vertex 3 120 Gb Windows 7 x64 Dell S2309W 
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post #2260 of 7150
Quote:
Originally Posted by clubhouse
RAID5 strip size 64k
4x SAS Seagate Cheetah 15k.6 300 Gb in RAID 10, all connected to the Perc5i through 1 cable

my results - 4x 160GB - Hitachi HDS721616PLA380, 7200RPM, 8MB cache, old drives ...

RAID 5, strip size 64KB, block size 64KB, AlwaysReadAhead, WriteBack, CachedIO, 512MB cache



so ... if you have 4x 300GB sas drives 15k RPM ... you SHOULD have better results ...
.
LL
Edited by RobiNet - 4/23/09 at 6:13am
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