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PERC 5/i RAID Card: Tips and Benchmarks - Page 497

post #4961 of 7174
Quote:
Originally Posted by BLinux View Post
I think a single disk RAID-0 is the only option. There's nothing necessarily "wrong" with that, so not sure why you think it is "messy"...
This is correct - the PERCs will not do drive-passthrough (JBOD on some controllers, although this can also refer to concatenation, which is different again).

It is a bit messy though, and has the important disadvantage that you cannot replace a drive and expect a software array to rebuild automatically. You have to again create a new RAID0 array, then assign it back into the software array. A 'proper' passthrough/JBOD card avoids this.

A better bet if you want software RAID would be something like a SAS 6/iR or AOC-SASLP-MV8 or similar - they will do proper passthrough, and are cheaper than the PERCs. They don't do RAID5/6/50/60 though.
post #4962 of 7174
It's amazing what a reboot can do. Went from 115MB/sec on the last test I rand (average), to 312MB/sec average. Wonder why it was choking, though.
post #4963 of 7174
Quote:
Originally Posted by AlphenIT View Post
Hi Guys,
maybe an odd question but it is possible to "disable" the RAID part on a Dell Perc 6i?
I want the drives to show up as single drives under Windows 2008 R2 disk management.
The only way so far has been to create a RAID 0 for each disk under the Dell Perc 6i BIOS which makes it show up under Windows but that's a bit messy. ( I want to create a software Windows RAID 1..a long story so don't ask )
Currently pulling my hair out and stressing a bit so TIA to all overclockers!
Can you not just plug them directly into your motherboard?
    
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post #4964 of 7174
Thanks for the quick reply guys
@the beast
That is exactly what I mean. You are still using the RAID firmware to push them to the OS which might still entitle me to TLER/CCTL problems in the future etc.

@RAND0M1ZER
Well I would but I have 4 1 TB drives, 1 SSD for OS, 1 DVDROM and 1 ESATA connection for external backup which makes 7 connections and my motherboard only has 6 (the DVDROM, SSD and eSata are attached to the motherboard)

@the beast @RAND0M1ZER @ALL
I do have a IBM Serveraid 10 BR10i which is a OEM LSI SAS3082E-R which is based on LSI1068E chipset
( http://www.redbooks.ibm.com/abstract...0737.html?Open ) Does anybody have any clues if this card does the drive-passthrough?

With the current setup I did want to see what would happen under Windows RAID with the Dell Perc so I created 2 RAID-0 VD in the Perc bios. I then created a Software Windows RAID 1 and copied some data on it.
Followed by detaching the cables from the drives and connecting one of the drives directly on my motherboard. (so no drives on the Dell Perc anymore)
Booted into Windows and broke the mirror by hand. The single disk then got it's driveletter back and my data was visible again.
Edited by AlphenIT - 2/4/11 at 1:40am
post #4965 of 7174
Quote:
Originally Posted by Starbuck5000 View Post
Gonna be moving my Array from ICH10R to the raid card this weekend. Just need to go and pick up the card from customs. Does X58 require th pin mod?
I had a problem with my MB (ASUB P6X58D).

The two middle dimm slots (B1, B2) were dead when the perc 5/i was installed. The system coulnd not work in tripple channel configuration, only 4GB of 6GB were shown. When I moved one dimm from B1 to C2 (A1/C1/C2 configuration) I had dual channel.

When I removed the perc, the middle dimm slots worked again.

I used some tape for the "pin mod" on perc, I installed it again and everything worked fine.
Edited by sdim - 2/4/11 at 7:55am
post #4966 of 7174
Question, can you use the Perc 5i internal on a regular desktop setup? How do you add the case slot covers so it'll stay in place? Assuming the bottom riser piece is removable...or should i just hunt for a non-internal version.
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post #4967 of 7174
The tray unscrews, and you can screw in a standard PCI backplate to keep the card secure. There are a few places you can buy the backplates from (go back a few pages for some links posted recently) or just hunt through your junk box - I have several cards with brackets from old modems or other RAID cards that fit perfectly.
post #4968 of 7174
Quote:
Originally Posted by the_beast View Post
The tray unscrews, and you can screw in a standard PCI backplate to keep the card secure. There are a few places you can buy the backplates from (go back a few pages for some links posted recently) or just hunt through your junk box - I have several cards with brackets from old modems or other RAID cards that fit perfectly.
Great! Thanks beast
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post #4969 of 7174
Quote:
Originally Posted by the_beast View Post
The tray unscrews, and you can screw in a standard PCI backplate to keep the card secure. There are a few places you can buy the backplates from (go back a few pages for some links posted recently) or just hunt through your junk box - I have several cards with brackets from old modems or other RAID cards that fit perfectly.
Quote:
Originally Posted by chavez885 View Post
Question, can you use the Perc 5i internal on a regular desktop setup? How do you add the case slot covers so it'll stay in place? Assuming the bottom riser piece is removable...or should i just hunt for a non-internal version.




I removed a bracket from an old modem.
    
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post #4970 of 7174
Also, a question about hard drives.

Is anyone using green drives? They are the cheapest 2tb ones available but I have read they will power off and drop out of the array causing data loss.

I am looking at the WD and Seagates in particular.
    
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