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PERC 5/i RAID Card: Tips and Benchmarks - Page 278

post #2771 of 7150
mine just cleared customs over here so I should have it by the weekend then its time to pick up the drives
post #2772 of 7150
Quote:
Originally Posted by RobiNet View Post
if you know that you will have only very big files - you can select bigger stripe and bigger block size - with LSI fw you can select up to 1024MB stripe size - but you can't go back to DELL fw without recreating array ...
Surely 1024KB?

A 1GB stripe size would need VERY big files and VERY VERY fast disks to justify...
post #2773 of 7150
Quote:
Originally Posted by ShadowFox19 View Post
Thanks man! I have a few more noob questions:

- Where do I get the drivers?

- Can I flash from my current drivers (I'm not at my desktop right now so I don't know which one I'm currently running) to the most recent, or do I have to flash every version between where I'm at now to the most recent?

- Lastly, how do I flash the drivers?

I appreciate all the help!
You can get the firmware update on Dell's website.

for the 6/i - v.6.2.0-0013, A11
http://support.us.dell.com/support/d...l=en&cs=&s=gen

You don't need to update sequentially. Just flash the latest version. What a firmware flash does is completely re-write the ROM a few blocks at a time, so there isn't any data actually being "updated", its just wiping the old and writing the new.

I have heard that some people on x86 (32-Bit) Windows were able to flash from within windows at a command prompt. x64 (64-Bit) is unable to run 16-Bit DOS apps so for 64-Bit you need to make a DOS boot flash disk or CD and flash from there, or use the 64-Bit version of MegaRAID. I was unable to get MegaRAID to flash this firmware, possibly because I am using the LSI version and not Dell's rebranded LSI version, so its checking the ROM for consistency against the LSI release data, perhaps? Im not sure, but i would rather do it from the command line now anyway.
    
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post #2774 of 7150
Quote:
Originally Posted by DJZeratul View Post
You can get the firmware update on Dell's website.

for the 6/i - v.6.2.0-0013, A11
http://support.us.dell.com/support/d...l=en&cs=&s=gen

You don't need to update sequentially. Just flash the latest version. What a firmware flash does is completely re-write the ROM a few blocks at a time, so there isn't any data actually being "updated", its just wiping the old and writing the new.

I have heard that some people on x86 (32-Bit) Windows were able to flash from within windows at a command prompt. x64 (64-Bit) is unable to run 16-Bit DOS apps so for 64-Bit you need to make a DOS boot flash disk or CD and flash from there, or use the 64-Bit version of MegaRAID. I was unable to get MegaRAID to flash this firmware, possibly because I am using the LSI version and not Dell's rebranded LSI version, so its checking the ROM for consistency against the LSI release data, perhaps? Im not sure, but i would rather do it from the command line now anyway.
Thanks!
Well, I can't update within Win7 32bit, I guess I'll have to do the boot disk route...does that require a floppy drive, or can I do it on DVD/CD media?
    
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post #2775 of 7150
Quote:
Originally Posted by the_beast View Post
The SAS cables work fine on SATA drives, it is just you cannot use SATA cables on SAS drives. SAS connectors are great to use with SATA - using 1 connector instead of 2 makes everything nice and secure.

The lack of warranty is a pain on eBay stuff, but I got my 4 73GB 10K.2 drives for less than I could have bought a single new 250GB bog-standard SATA. Sometimes cheap is worth a punt...



Dare I ask how/why you don't pay the bill? I am assuming you live with parents. Not sure about your household, but if I had bought a new toy then suddenly our power bill jumped up I know who would have got it in the neck. Not to mention that, sooner or later, you will move and have to pay your own bills. How long do you expect your storage array to last you? At least until the 5 year warranty runs out?

Sorry for sounding a little like one of your parents...
interesting. If sas cables work with SATA, then I might give it a try if I find a cheap 15k rpm SAS drive in ebay. But since I dont know the market, and I dont know what platters size they use in those drives, assuming I go single drive, is there any recommendation in which drives to look for in ebay around ~73gb? Should be enough for OS...
Getting a larger one and short-stroking it I know should be better but if this gets expensive then there is not much point. Because this SAS project will be kind of wasted money for experimenting with SAS speed. I see it that way because of the 0 warranty and the fact that when I eventually move to SSD there is no chance in hell I'll find a buyer locally for a SAS drive, so it will be kind of like throwing it in a drawer...

About the power bill, yes its true my parents pay it however, they have never protested despite this PC running 24/7 for the past 2 years....I think the power draw in idle (which is 90% of the time) should be negligible compared to other stuff in the house, like the washing machine, or the oven...
I could be wrong, but this is the idea I have gotten...they never cared that the PC is running 24/7, and they never noticed any significant increase in the power bill :/
I think the important thing is that 90% of the time this PC is in idle mode just downloading....so the power draw should be minimum...
post #2776 of 7150
Quote:
Originally Posted by ShadowFox19 View Post
Thanks!
Well, I can't update within Win7 32bit, I guess I'll have to do the boot disk route...does that require a floppy drive, or can I do it on DVD/CD media?
Should work off of a boot cd or usb drive.
    
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post #2777 of 7150
Quote:
Originally Posted by Blinky7 View Post
interesting. If sas cables work with SATA, then I might give it a try if I find a cheap 15k rpm SAS drive in ebay. But since I dont know the market, and I dont know what platters size they use in those drives, assuming I go single drive, is there any recommendation in which drives to look for in ebay around ~73gb? Should be enough for OS...
Getting a larger one and short-stroking it I know should be better but if this gets expensive then there is not much point. Because this SAS project will be kind of wasted money for experimenting with SAS speed. I see it that way because of the 0 warranty and the fact that when I eventually move to SSD there is no chance in hell I'll find a buyer locally for a SAS drive, so it will be kind of like throwing it in a drawer...
Basically, bigger = newer = faster = better.

Look for the largest Seagate 15K.5 or 15K.6 drive you can afford (or want to afford) - the last number in the title denotes the generation of the drive. Fujitsu also make decent SAS drives but I can't remember the model numbers. WD do not make SAS drives at all. Most of the drives you see on eBay are likely to be badged as Dells or HPs etc, but the disks are essentially all the same underneath. I would monitor prices for a bit though - the 10K.2s I have often sell for ~40-50GBP each. I bought all 4 of mine for 45GBP inc. shipping.

Quote:
Originally Posted by Blinky7 View Post
I think the important thing is that 90% of the time this PC is in idle mode just downloading....so the power draw should be minimum...
As for the power - remember the PERC will not allow the drives to spin-down like they can when attached to onboard ports, so each drive will use ~6-8W minimum constantly. You also need to factor in the power usage of the PERC itself, which is 10-15W. But hey, it's your (parents) money...
post #2778 of 7150
$699.99 for this thing? no thanks
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post #2779 of 7150
Quote:
Originally Posted by OmegaNemesis28 View Post
$699.99 for this thing? no thanks
I just paid $130 shipped for my 6/i...I don't know where you're looking.
    
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post #2780 of 7150
Thread Starter 
Quote:
Originally Posted by OmegaNemesis28 View Post
$699.99 for this thing? no thanks
huh?
Once again...
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