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PERC 5/i RAID Card: Tips and Benchmarks - Page 228

post #2271 of 7150
Quote:
Originally Posted by mrwilby View Post
1) Does the card support any kind of configurable (or otherwise) spin up delay so that you can e.g. batch boot 4 drives at a time in order to reduce stress on the PSU?
from LSI manual (PDF):

Spinup Drive Count - Use this option to control the number of drives that spin up simultaneously. The default is 2 drives.
Spinup Delay - Use this option to control the interval (in seconds) between spinup of drives connected to this controller. The delay prevents a drain on the system’s power supply that would

Quote:
Originally Posted by mrwilby View Post
2) If I want, can I skip all the RAID functionality and just use the card as an HBA for JBOD, perhaps under e.g. linux (sw raid5/6) or solaris (sw raidz)?
I think you can configure drives as single drives - but I'm not sure if JBOD is possible ...
post #2272 of 7150
Quote:
Originally Posted by RobiNet View Post
from LSI manual (PDF):

Spinup Drive Count - Use this option to control the number of drives that spin up simultaneously. The default is 2 drives.
Spinup Delay - Use this option to control the interval (in seconds) between spinup of drives connected to this controller. The delay prevents a drain on the system’s power supply that would



I think you can configure drives as single drives - but I'm not sure if JBOD is possible ...
For single drives, you just set them up as a virtual RAID0 containing the single disk you want to show up as one disk. JBOD spanning is not possible in hardware.
    
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post #2273 of 7150
Quote:
Originally Posted by clubhouse View Post
Please note that I was not able to run write tests at 32k block size, as HDTune was crashing
neither do I - only from 64k up, below - HD Tune Pro crashes ...
post #2274 of 7150
Quote:
Originally Posted by RobiNet View Post
from LSI manual (PDF):

Spinup Drive Count - Use this option to control the number of drives that spin up simultaneously. The default is 2 drives.
Spinup Delay - Use this option to control the interval (in seconds) between spinup of drives connected to this controller. The delay prevents a drain on the system’s power supply that would
Interesting! I never thought these options existed. Thanks for the info and the link. Guess I'll spend my weekend reading that manual and learn more about my new lover: my Perc5i
    
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post #2275 of 7150
Quote:
Originally Posted by Bonzâ„¢ View Post
Ok so I added a 1TB to my 5x1TB RAID5. It took about 48 hours to add it, and now it's been background initializing for about 15 hours and is 55% done. I would think that after it was done rebuilding the array that I can see the extra 1TB of space... but it's still showing 3.63TB instead of 4.55TB. Do I have to wait for it to finish initializing? I wouldn't think so... anyone know?
Probably because you need to go into Disk Management and extend your partition. You just extended array not the partition.
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post #2276 of 7150
Quote:
Originally Posted by ounderfla69 View Post
Probably because you need to go into Disk Management and extend your partition. You just extended array not the partition.
Yea I did that earlier today. I did not realize I had to extend the partition as well. It didn't show up just after I rebuilt it... I guess after it had initialized it did. Thanks
post #2277 of 7150
Thanks everybody, that's excellent news about both the spinup and the pseudo-JBOD.

And thank you for pointing me at the LSI manual, I had tried to find it but didn't work out exactly which model this card clones.

The only reason I wanted SW raid was basically as a fall back in case the dell sw (or LSI) is rubbish. However, if I can manager to source a couple of these I think I'll be set - and the staged spin up means I can somewhat reduce my power supply needs.

Many thanks! Now... next step is to find a supplier
post #2278 of 7150
Quote:
Originally Posted by RobiNet View Post
Quote:
Originally Posted by dunk
i had a series of bad batteries from various suppliers - couldnt find any info at all, so in the end i broke open the package and removed the old 1950mah cell and attached an unprotected 18650 2000mah battery to the charging circuit inside the black box - works great and cost about $5 for the new cell

it also works with protected cells but not sure about charging status etc from the bbu electronics - i also tried a cell phone battery and a nintendo ds battery - all work fine if they are 3.7v lithium and just wrapped up the package in electrical tape with the thermocouple stuck to the battery cell so that the bbu electronics knows the temp of the cell as per original.
very nice tip thanks so this will be 100% test if everything is OK with connector ... I hope
battery used in BBU "TypeERC5I" barcode "JP-0U8735-71763-xxx-xxxx" is PANASONIC CGA103450a - $13
post #2279 of 7150
Quote:
Originally Posted by ounderfla69 View Post
You can see the card in Windows, have you tried to install Megaraid manager? There is a setting the bios that allows you to no boot on the card. Is your card new or used? Maybe it could have been set to no boot. I was going to try but I dont know how to set it back after I do it.
Hey, I tried using the MegaRaid manager on a previous windows install and it never detected anything, but I'll give it another go because I've reinstalled win to a new disk. Hopefully I'll get some time here in the next couple days.
It would be cool to have like 2 days with nothing to do so I could just sit down and work on this... I haven't even gotten a chance to put the cards in my dell machine yet...
Anyway, thanks for the input. I really appreciate it. I'll report back when I find out.
post #2280 of 7150
Hi Duckie, I read at the very first page that Perc 6i does not support SATA. Please advise if the following HD will work, if not please recommend one that will work with Prec 6i.

http://www.samsung.com/us/consumer/d...del_cd=HD501LJ

Thanks in advance!!
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