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PERC 5/i RAID Card: Tips and Benchmarks - Page 273

post #2721 of 7150
Quote:
Originally Posted by ShadowFox19 View Post
Where do I make these adjustments?
Grab the MegaRAID storage manager and it will let you make all of these changes using a GUI, or you can also set them using the MegaCLI command line utility.
    
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post #2722 of 7150
Quote:
Originally Posted by Blinky7 View Post
what does the 2tb limit have to do with anything I said?

I simply want to know if there is a way to expand an array not by adding an extra disk to it, but by replacing the existing with bigger ones.
The expansion capabilities mean that you can expand to same sized disks on an array, so say you have 4x1TB in RAID5 and you want to expand to 5x1TB, adding a 1TB will expand your array from 3TB to 4TB usable space and re-calculate the parity accordingly.

Similarly, if you clone your drives from 4x640GB to 4x1TB drives, and add a 1TB, changing your RAID5 from a 4x640 to a 5x1TB will leave you with a 5x640 array The rest of the space will just be left unaddressed.

I am not sure why your array ended up being 400GB on a 640GB drive. Your drive should only lose a little bit from the 1000->1024 conversion, it should be around ~625GB. I would try to make your array again and when you are choosing your total array size make sure it adds up to what it should be.
    
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post #2723 of 7150
Quote:
Originally Posted by the_beast View Post
How has the cooling been up to now? All I can think of is that the chip has been damaged by overheating somehow?

If it was a tuesday I would suggest a Windows Update might have caused it, but they're not due for another 10 days or so. No other suggestions, unless you have installed something or updated a program that might have broken a shared library or something.
cooling was good before. I take care of my built.

I don't think it's Windows. I had Windows 7 and I just formated and put back Vista 64 because I was thinking it could be Win7.

Now I can't make it work I can't even make a backup of my 3Tb array

Btw thanks for your help, I apreciate.
post #2724 of 7150
Thread Starter 
Quote:
Originally Posted by Blinky7 View Post
what does the 2tb limit have to do with anything I said?

I simply want to know if there is a way to expand an array not by adding an extra disk to it, but by replacing the existing with bigger ones.
Quote:
I created a raid5 array using only 5 out of 6 drives and only about 400gb from each drive instead of all the space.
From what I think you said.... you have 6x640GB in RAID6 which should have resulted in around 3.2TB of storate (5x640GB).

Since 3.2TB > 2TB NTFS limit..... that's why you seem to only have 400GB per drive...

5x400GB = 2TB.
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post #2725 of 7150
Quote:
Originally Posted by Vric View Post
cooling was good before. I take care of my built.

I don't think it's Windows. I had Windows 7 and I just formated and put back Vista 64 because I was thinking it could be Win7.

Now I can't make it work I can't even make a backup of my 3Tb array

Btw thanks for your help, I apreciate.
I would try rolling the driver back using the device manager. See if there is a previous version and try to roll back to it and see if it shows up. This happened to me once before too, on a 5/i. I was able to get it to show up after a driver rollback.
    
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post #2726 of 7150
Quote:
Originally Posted by DuckieHo View Post
From what I think you said.... you have 6x640GB in RAID6 which should have resulted in around 3.2TB of storate (5x640GB).

Since 3.2TB > 2TB NTFS limit..... that's why you seem to only have 400GB per drive...

5x400GB = 2TB.
Yes more clarification is needed, but I assumed he meant in hardware.

To the OP: does your raid manager say each disk is only formatted to 400Gb or are you doing that calculation by dividing your 2TB by 5?

The hardware supports the space, but MBR only goes to 2TB. GPT can get you past that, but you cant boot from it.

If its a hardware issue, its probably just a miscalculation by the RAID utility. You should check to see that the RAID utility is addressing all of the space that it can by manually setting the total raid size to what the utility says is the maximum possible size.
    
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post #2727 of 7150
Quote:
Originally Posted by DJZeratul View Post
I would try rolling the driver back using the device manager. See if there is a previous version and try to roll back to it and see if it shows up. This happened to me once before too, on a 5/i. I was able to get it to show up after a driver rollback.
Well after a lot of try and fail, the card now gives me a Memory error when booting. I tried it on another computer, same error.

So this card is going to the trash.

Now, I want to save my data. (3tb!) If I buy another PERC5, do I have anything to do to restore my raid? Is it even possible?

Thanks for your help.
post #2728 of 7150
Quote:
Originally Posted by Vric View Post
Well after a lot of try and fail, the card now gives me a Memory error when booting. I tried it on another computer, same error.

So this card is going to the trash.

Now, I want to save my data. (3tb!) If I buy another PERC5, do I have anything to do to restore my raid? Is it even possible?

Thanks for your help.
If you have a 5/i, the memory is user replaceable. You can get a stick of DDR2 for a lot less than a new card. Check this thread for compatible RAM. May as well get a stick of 512 as an upgrade over the built in 256. That way if its the card that's faulty, you can throw it into a new card and you wont feel like you wasted your money

If you want to just get a new card, your RAID setup should transfer over just fine. You may need to rebuild the array manually depending on firmware so make sure you know the specific settings (stripe size, etc). When you rebuild it you are going to want to set it to DO NOT initialize after you are done, that way it creates the array and leaves the filesystem on the disks intact.

After that, you are going to want to run a manual consistency check because if your RAM went bad, chances are you may have some corrupt data (that should be fixable using parity if it isn't too extensive).
Edited by DJZeratul - 6/29/09 at 7:45pm
    
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post #2729 of 7150
guys, you did not really get what I said.
I INTENTIONALLY created the raid5 array using only 5/6 drives and only 400gb in each drive, just to be able to test afterwards the expanding capabilities of the controller...

So, when I got to that, the reconstruction wizard did allow me to add the 6th drive to the array, however I didn't find any option that would allow me to expand the array to use the rest of the space in the existing 5 disks...

That's what I am asking, is there any way to do that or not?
I guess the answer is NO, but I am asking because I was led to believe, almost all hardware raid controllers have this feature...so I kinda assumed it would be there...They told me it would be a simple process, replace each drive with the larger one and let it rebuild, then once all are replaced, there is an option to "grow" the array using the extra free space, and after that its just a matter of resizing the partition using software.

I guess the perc5 can't do that, since I found no such option in the reconstruction wizard....I just wanted to clarify it, to be sure, because if it can't do it then maybe I should sell my 640 drives and start with 4x1tb now that I can...because later on when they got data in them this wont be possible (I dont have extra disks to transfer the data temporarily)...
post #2730 of 7150
Quote:
Originally Posted by Blinky7 View Post
guys, you did not really get what I said.
I INTENTIONALLY created the raid5 array using only 5/6 drives and only 400gb in each drive, just to be able to test afterwards the expanding capabilities of the controller...
it was clear for me

Quote:
Originally Posted by Blinky7 View Post
I guess the perc5 can't do that, since I found no such option in the reconstruction wizard....I just wanted to clarify it, to be sure, because if it can't do it then maybe I should sell my 640 drives and start with 4x1tb now that I can...because later on when they got data in them this wont be possible (I dont have extra disks to transfer the data temporarily)...
can you migrate from one array to another - or not ? because if you can - reduce number of 640 GB drives to 4 - and when you have 1TB drives - you can add new array and transfer all your data ... you have 8 ports - now you will use 4 and later you will use other 4 to migrate data ...
Edited by RobiNet - 9/4/09 at 4:24pm
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