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PERC 5/i RAID Card: Tips and Benchmarks - Page 540

post #5391 of 7172
hi guys, this thread have some great info. but i have a matter on my hands which i would like to bounce some ideas with you guys because i can't get my perc5 working.

i have a old poweredge 2850 which uses the a perc5/e gp297 that connects to a storage array. everything was working fine until a few days ago i decide to replace the broken lcd display, and had no luck. i read that it might improve if you reseat the daughter card. upon doing that, the entire server refused to boot.

i found that if i remove the perc 5 gp297, the machine boots fine. with the gp297, the machine does not even post and constantly gives a e07f0 error. i have cleaned and reseated everything. include the cpu.


i have replace the perc5 gp297 with a new one, also the riser card. now things are improving that i can get into windows but under device manager the gp 297 shows up as PCI Memory Controller and does not matter which driver i feed it windows says it's not it.

also i notice that the gp297 does not show during the bios at all, i always thought there is an pause where you can hit crtl e to getinto its bios?

there is another perc 5 card in there connect to a tape library and that is working fine.

any advise at this point will be appreciated.
thanks in advance.
post #5392 of 7172
Quote:
Originally Posted by A_Man_Eating_Duck View Post
@UnknownDevice,

The only time i had any slow downs was when i had the Disk Cache policy disabled otherwise with the cache enabled the copy speeds have been fast and consistent.

Maybe there is an issue with one of your Samsung drives or the cables you are using?
Hi A_Man_Eating_Duck ,

Todays Bench with a 256 MB stick, the original that perc had, and with disck cache enabled seems to be no more slowdowns, i got a constant transfer from another drive connected to the motherboard of 114Mb/s...


For now i think the problem could be in the 512 MB stick from samsung ...
Gonna keep testing.

The cable is from a local retailer and are like those red ones from ebay...
The Samsung drives are brand new ... i tested them and all seemed to be ok ...

Thank you for your help
post #5393 of 7172
Have you benchmarked the drives individually. You could delete your Raid5 array and make 4x Raid 0 arrays and then benchmark each drive. that way you can test the Perc's SAS port, the cable and the drives at the same time.
post #5394 of 7172
I'm having the infamous warm boot issue on my box. I have read extensively on this topic and I am convinced there is a way around it.

I have already tried 10, yes 10 different LSI firmware versions (-0051 was the first recommended to downgrade to) but it hasn't helped. I am currently running on -0081 (latest). Also tried the stock Dell firmware, no help.

I'm using a DG33TL mobo, Perc 5/i with BBU (100% charged) w/ the smbus pin fix. I have found a thread that suggests there is a PCI-exp line not being called properly:

"I was over on Hard Forums looking at a thread about the HP SAS Expander, and they mentioned several times about a line on the PCIe slot not being pulled up on warm boots. I assume that is with desktop motherboards, as the main poster kept telling people they should use sever motherboards. I therefore assume that is related to the need for the tape mod on many desktop motherboards, which according to him leaves the line floating and subject to random reboots. He went to the trouble of soldering a pull up resistor onto one of his motherboards to eliminate the problem. He claims his day job is designing printed circuit boards."

Anyone have any ideas what that pci-exp line may be?
post #5395 of 7172
Quote:
Originally Posted by worpx View Post
"I was over on Hard Forums looking at a thread about the HP SAS Expander, and they mentioned several times about a line on the PCIe slot not being pulled up on warm boots. I assume that is with desktop motherboards, as the main poster kept telling people they should use sever motherboards. I therefore assume that is related to the need for the tape mod on many desktop motherboards, which according to him leaves the line floating and subject to random reboots. He went to the trouble of soldering a pull up resistor onto one of his motherboards to eliminate the problem. He claims his day job is designing printed circuit boards."
No idea about this TBH - but I use a server board (Intel 3000 chipset), and I need to cover the pins to use the PERC. I don't suffer any issues with warm boots though - so it can't be the covered pins that are the issue...
post #5396 of 7172
Does the perc6 use Crossover or passthrough cables?
 
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Media Server
(15 items)
 
Various snapshots
(3 photos)
CPUMotherboardGraphicsRAM
Intel Core i7 920 @ 4.2Ghz DFI Lanparty UT X58 T3eh8 XFX Radeon HD 6990 4GB G.Skill Pi Series 
RAMHard DriveHard DriveOptical Drive
Mushkin Enhanced Intel 510 Series 250GB SSD Seagate 1.5TB 7200RPM  Sony External USB DVD Combo Drive 
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Windows 7 Enterprise 64-bit ASUS VH238H Dell E207WFPc Samsung PN58B650 
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Razer Blackwidow Ultimate Corsair AX 1200 Custom MountainMods Monticle 24 w/Acoustics & LCS Logitech G500 
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6GB DDR2 (2x2GB Patriot+2x1GB G.Skill) Western Digital Caviar Black Western Digital Caviar Green Cooler Master GeminII 
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post #5397 of 7172
Thanks for the response, anyone have any ideas as to what the problem may be?

Quote:
Originally Posted by the_beast View Post
No idea about this TBH - but I use a server board (Intel 3000 chipset), and I need to cover the pins to use the PERC. I don't suffer any issues with warm boots though - so it can't be the covered pins that are the issue...
post #5398 of 7172
Quote:
Originally Posted by worpx View Post
Thanks for the response, anyone have any ideas as to what the problem may be?
chipset/motherboard implementation by the manufacturer - it may be that it is an issue with floating pins, but you can't say for certain whether or not it's down to the 'server' or 'consumer' label, and it isn't due to the covered SMBus pins.
post #5399 of 7172
Quote:
Originally Posted by RobiNet View Post
Remove memory and try to boot - you should get error - reinsert memory and try boot again.
Thanks -- tried that but no go -- without the memory I am getting the SDRAM error and once I insert it back it goes back to the same system hang...

Any other ways to troubleshoot this card --- it's very frustrating not to know what the issue is...

Thanks!
post #5400 of 7172
Quote:
Originally Posted by dantm View Post
Thanks -- tried that but no go -- without the memory I am getting the SDRAM error and once I insert it back it goes back to the same system hang...

Any other ways to troubleshoot this card --- it's very frustrating not to know what the issue is...

Thanks!
So it looks like the card is fried -- tried it in another computer and the same issue; no POST...just sits at initializing firmware.

Now -- I have valuable data on the RAID array so I was thinking of getting another PERC card so I don't lose the data:

(1) can I go with a PERC 6i and re-create the array (WITHOUT re-initializing it so it maintains the data)? This way I get a slight upgrade...


(2) does the PERC 6i have the same requirements on heat? I'm sure my 5i was killed by heat as it had only passive cooling (the heatsink on the main CPU) and minimal active flow on the card.

Thank you!
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