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PERC 5/i RAID Card: Tips and Benchmarks - Page 484

post #4831 of 7276
I have 2 PERC 5/is installed on this board:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131646R

It works without any problems, no smbus fix needed.
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PWNzershreck
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post #4832 of 7276
Well, as I want to encrypt my whole system on-the-fly I need to build up my system on Intel, due to the fact that there is nothing like aes ni for AMD .
post #4833 of 7276
Quote:
Originally Posted by johnpatcher View Post
Well, as I want to encrypt my whole system on-the-fly I need to build up my system on Intel, due to the fact that there is nothing like aes ni for AMD .
Why not encypt with Truecrypt? Will you be in Windows or Linux?

Better hide that illegal data To the party van for you.
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PWNzershreck
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post #4834 of 7276
Quote:
Originally Posted by binormalkilla View Post
Why not encypt with Truecrypt? Will you be in Windows or Linux?
I'll will be on Linux, but it doesn't matter. Even Truecrypt has support for AES NI. With this support enabled I get much faster results with much less cpu performance, something I need when thinking about a raid 5 array with 4 hdds.
post #4835 of 7276
Quote:
Originally Posted by johnpatcher View Post
I'll will be on Linux, but it doesn't matter. Even Truecrypt has support for AES NI. With this support enabled I get much faster results with much less cpu performance, something I need when thinking about a raid 5 array with 4 hdds.
Ah, I see.



Guys if you're running a RAID5 (or any striped array) on Linux you HAVE to test the blockdev command. Tweaking it increased my hdparm benches from 345 MB/s to 512 MB/s.......seriously. I'm going to run a full iozone later.
Code:
sudo blockdev --getra /dev/sdX
This should report 256, which is too low for RAID arrays with dedicated controllers and a DIMM for read ahead buffer.

Change the value by powers of 2 until you hit the sweet spot. Mine was 32768. Over that and it was about 10MB/s slower.
Code:
sudo blockdev --setra 32768
To make this permanent add the command in rc.local, this way it will execute after boot.

Another guy told me about this....can't remember his name. I love him now
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PWNzershreck
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post #4836 of 7276
Ok, that sound interesting, have you some other tweaks for linux based systems? I guess it is a hard time in the beginning to get the best parameters .
post #4837 of 7276
So I just picked up a Perc 6i card for my Dell Precision 390 or R5400 (x8 wired at x4 on the 390) to run VMWare ESX as a lab box - seems a few people already have this setup.

However the unit I purchased is the "slide in" model for rackmount servers. Does anyone know where I can get a pci plate so I can install it in my desktop machine properly?

The unit I purchased is the one below:
http://cgi.ebay.com/ws/eBayISAPI.dll...m=130465996240

Will this work for what I am wanting to use it for - is there any plate even available for this or am I going to be stuck with just sliding it into the slot and just leaving it at that?

*Sorry - I did search the thread, but only found questions asking about the plate, no mentions of where to get one*
post #4838 of 7276
Quote:
Originally Posted by binormalkilla View Post
Another guy told me about this....can't remember his name. I love him now
perhaps it was me? if so, show me the love baby!!!
TAIPEI
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AURORA
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ASRock X99 Extreme11 EVGA GTX 980 Superclocked 32GB 8x4GB Corsair LPX Samsung XP941  
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Dual Quad-core L5430 2.66Ghz 12mb cache Intel 5000 chipset ATI ES1000 64GB FBDIMM DDR2 PC2-5300 667Mhz 
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WD3000FYYZ PERC H700 w/ 512MB cache CentOS 7.2.1511 950W x2 
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TAIPEI
(10 items)
 
AURORA
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MotherboardGraphicsRAMHard Drive
ASRock X99 Extreme11 EVGA GTX 980 Superclocked 32GB 8x4GB Corsair LPX Samsung XP941  
Hard DriveCoolingOSMonitor
Western Digital 3TB RE Noctua NH-D15 Fedora 21 Linux Samsung S27D590C 
PowerCase
Seasonic SS-1200XP Cooler Master Cosmos II 
CPUMotherboardGraphicsRAM
Dual Quad-core L5430 2.66Ghz 12mb cache Intel 5000 chipset ATI ES1000 64GB FBDIMM DDR2 PC2-5300 667Mhz 
Hard DriveOSPower
WD3000FYYZ PERC H700 w/ 512MB cache CentOS 7.2.1511 950W x2 
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post #4839 of 7276
Quote:
Originally Posted by BLinux View Post
perhaps it was me? if so, show me the love baby!!!
Yes! It was you! You're a gentleman and a scholar

My array just went degraded in the middle of copying a about 600GB of data from an esata drive. It shows to be rebuilding in the BIOS, but it doesn't even show up via fdisk -l.

Hope I didn't lose it all......


Well it just looks like there was a foreign config problem after it became degraded. Apparently it started to rebuild (according to the BIOS), but after rebooting it said there was a foreign config. I imported it, and then it said more disks were missing. I forgot to turn the power on my enclosure back on (it contained 4 drives), so 4 were missing.

So I deleted the array (as I've done before to fix this) and started to recreate it with the exact same settings....it should be back to optimal.

The problem is that there are still foreign disks and they won't clear. I've tried several times. It also shows under physical disks that SATA failed (only on 1 disk)

Any ideas? If I can get the controller to forget the foreign config drives I can rebuild the array and all should be well.

I also have another controller so I can try hooking them up to that......

This sucks
Edited by binormalkilla - 12/22/10 at 1:04am
PWNzershreck
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PWNzershreck
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CPUMotherboardGraphicsRAM
4930K @ 4.6 GHz ASUS Rampage IV Black Edition MSI GTX 1080 FE Heatkiller Acetal 16 GB Corsair Vengeance 1600C9 
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2x Samsung 840 Pro  ASUS DVD-RW SATA Koolance 380i & 2x HW Labs 480GTX Arch Linux x86_64, Windows 7 x64 
MonitorKeyboardPowerCase
LG UC88-B Ultrawide, ASUS VS278Q Ducky Corsair AX1200i Caselabs STH10 
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Logitech G500 Func 1030 ASUS Xonar Essence STX 
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post #4840 of 7276
Quote:
Originally Posted by binormalkilla View Post
Any ideas? If I can get the controller to forget the foreign config drives I can rebuild the array and all should be well.

I also have another controller so I can try hooking them up to that......

This sucks
did you highlight the controller, hit F2 and clear the controller config? highlight *each* disk, and hit F2 and clear the disk configs there too? normally, that would clear everything off the disk, but i only use the Dell firmware.

in worst case, use 'dd' command in linux (i'm assuming you work in Linux) and /dev/zero and fill the disk with zeros; that's a sure way of clearing the entire disk.
TAIPEI
(10 items)
 
AURORA
(13 items)
 
 
MotherboardGraphicsRAMHard Drive
ASRock X99 Extreme11 EVGA GTX 980 Superclocked 32GB 8x4GB Corsair LPX Samsung XP941  
Hard DriveCoolingOSMonitor
Western Digital 3TB RE Noctua NH-D15 Fedora 21 Linux Samsung S27D590C 
PowerCase
Seasonic SS-1200XP Cooler Master Cosmos II 
CPUMotherboardGraphicsRAM
Dual Quad-core L5430 2.66Ghz 12mb cache Intel 5000 chipset ATI ES1000 64GB FBDIMM DDR2 PC2-5300 667Mhz 
Hard DriveOSPower
WD3000FYYZ PERC H700 w/ 512MB cache CentOS 7.2.1511 950W x2 
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TAIPEI
(10 items)
 
AURORA
(13 items)
 
 
MotherboardGraphicsRAMHard Drive
ASRock X99 Extreme11 EVGA GTX 980 Superclocked 32GB 8x4GB Corsair LPX Samsung XP941  
Hard DriveCoolingOSMonitor
Western Digital 3TB RE Noctua NH-D15 Fedora 21 Linux Samsung S27D590C 
PowerCase
Seasonic SS-1200XP Cooler Master Cosmos II 
CPUMotherboardGraphicsRAM
Dual Quad-core L5430 2.66Ghz 12mb cache Intel 5000 chipset ATI ES1000 64GB FBDIMM DDR2 PC2-5300 667Mhz 
Hard DriveOSPower
WD3000FYYZ PERC H700 w/ 512MB cache CentOS 7.2.1511 950W x2 
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Reply
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