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PERC 5/i RAID Card: Tips and Benchmarks - Page 546

post #5451 of 7150
Quote:
Originally Posted by A_Man_Eating_Duck View Post
Yeah i have the same setup.

sorry you wrote in the post above you only had 2 drives.

Before you setup your array can you make sure that you update the firmware on your Samsung drives. you need to make a bootable USB key or Floppy and make sure the drives are plugged in to the SATA ports on your motherboard, it will detect and update any samsung drives that are connected automaticlly so you can plug in all 4 at once if you want.

http://www.samsung.com/global/busine...bbs_msg_id=386
ops. my mistake. should of put 4 instead of 2. sorry bout that.

firmware has been updated on all my samsung drives.

i also tested all my drives before setting up the raid 5 array.
post #5452 of 7150
Quote:
Originally Posted by A_Man_Eating_Duck View Post
Yeah i have the same setup.



Before you setup your array can you make sure that you update the firmware on your Samsung drives. you need to make a bootable USB key or Floppy and make sure the drives are plugged in to the SATA ports on your motherboard, it will detect and update any samsung drives that are connected automaticlly so you can plug in all 4 at once if you want.

http://www.samsung.com/global/busine...bbs_msg_id=386
Quote:
Originally Posted by UnknownDevice View Post
Did you updated your firmware on the Samsungs with the one in the link ?

Thanks for your help, will update asap

just go here hit where it says download. Burn the ISO file to a disk. And then follow these picture instructions. You do NOT need to read the written instructions on top . Just follow the picture instructions .

I updated the firmware all all my drives. Well at least I tried since all my drives came with the newest firmware.
post #5453 of 7150
Quote:
Originally Posted by Carlitos714 View Post
Quote:
Originally Posted by RobiNet View Post
Do you want to install system on PERC 5i?
I need to install the perc 5i w/ 2 x samsung f4 in raid 5 on my server computer. (mobo is GIGABYTE GA-EP45-UD3L).
I'll repeat my question - do you want to install system on these four drives - or they are only for storage?
Because if they are ONLY for storage - you can configure everything from the SAS MegaRAID Storage Manager - Windows, Version 9.00-01.
post #5454 of 7150
Quote:
Originally Posted by RobiNet View Post
I'll repeat my question - do you want to install system on these four drives - or they are only for storage?
Because if they are ONLY for storage - you can configure everything from the SAS MegaRAID Storage Manager - Windows, Version 9.00-01.
I already have all 4 drives in raid 5 with the perc 5i. I hope I answered your question. Thank you for all your help. This is the first time i use a raid card so I have lots to learn.
post #5455 of 7150
@ UnknownDevice , A_Man_Eating_Duck and RobiNet

I am a newbie with all this so I appreciate your patience and guidance and I apologize for my limited knowlege

could you guys tell me if I have the right settings? I have a 512 stick of ram in the perc 5i. The BBU I have does not work at all.

Firmware is Dell's 5.1.1-0040.

With the newest firmware, my computer wouldn't recognize the perc 5i and would not install the drivers. Even with the second newest firmware I got the same thing as with the newest firmware. So I went back to the firmware I am using now and it worked!

Also I am using MegaRAID 9.00.0100, and it is showing I am running Windows Vista OS Version 6.1???? I have windows 7 ultimate 64 bit. Do guys think its because I am using older firmware? Is this a know problem?





And then I run crystaldiskmark and I get these insane numbers!!! It has to be one of my settings right?

post #5456 of 7150
Quote:
Originally Posted by Carlitos714 View Post
could you guys tell me if I have the right settings? I have a 512 stick of ram in the perc 5i. The BBU I have does not work at all.
Be careful running write back without a BBU, if you get a power cut or your computer crashes while writing to that array you might get some corruption. best to be safe and set it to write through until you get a replacement BBU.
Quote:
Also I am using MegaRAID 9.00.0100, and it is showing I am running Windows Vista OS Version 6.1???? I have windows 7 ultimate 64 bit. Do guys think its because I am using older firmware? Is this a know problem?
Completely normal for it to show the OS as 6.1

Quote:
The only thing i would change here is changing the disk cache to unchanged or enabled. I have read a dell document that says the disk cache should be enabled for SATA drives and disabled for SAS disks, if you leave it set to unchanged the perc will automatically decide depending on what type of disks are attached.

here is an example using my other array.

Disk cache enabled


Disk cache disabled

As you can see the writes with the disk cache disabled are terrible

Quote:
And then I run crystaldiskmark and I get these insane numbers!!! It has to be one of my settings right?

No this is normal as well. you can see that you are testing only 100MB of data, which will mean it will be stored in the PERC 512MB cache. Set it to 1000MB and try again.
Edited by A_Man_Eating_Duck - 7/9/11 at 6:12pm
post #5457 of 7150
Quote:
Originally Posted by eclsnowman View Post
Just finished setting my perc 6/I on a Asus p67 without the pin mod. Works just fine.

Sent from my Droid using Tapatalk
What's the exact mobo model you used?
post #5458 of 7150
Quote:
Originally Posted by A_Man_Eating_Duck View Post
Be careful running write back without a BBU, if you get a power cut or your computer crashes while writing to that array you might get some corruption. best to be safe and set it to write through until you get a replacement BBU.
Completely normal for it to show the OS as 6.1

The only thing i would change here is changing the disk cache to unchanged or enabled. I have read a dell document that says the disk cache should be enabled for SATA drives and disabled for SAS disks, if you leave it set to unchanged the perc will automatically decide depending on what type of disks are attached.

here is an example using my other array.

----disk cache enabled---------------disk cache disabled---

As you can see the writes with the disk cache disabled are terrible

No this is normal as well. you can see that you are testing only 100MB of data, which will mean it will be stored in the PERC 512MB cache. Set it to 1000MB and try again.
Dude thank you very much for all your help. The following screen shots are just for testing. I will set to your suggested setting since I don't have a BBU for the time being.

perc bios
Adaptive Read Ahead
Write Back
Force WB w/out Battery

HD Tune Pro w/ 8MB block size

I also transferred a 106 GB folder to the raid 5 array from a 640 gb WD black. Its transferring so slow! It this normal?

Oh yeah all the test were done separately. No overlapping test here.

post #5459 of 7150
Quote:
perc bios
Adaptive Read Ahead
Write Back
Force WB w/out Battery
you still run the risk of corruption when forcing write back without a BBU.

For the speed problem. Do you have another disk in your system that you can try copying files from, just to rule out a source disk problem.
post #5460 of 7150
Quote:
Originally Posted by A_Man_Eating_Duck View Post
you still run the risk of corruption when forcing write back without a BBU.

For the speed problem. Do you have another disk in your system that you can try copying files from, just to rule out a source disk problem.
thank you. i tried a few more drives and I'm getting 36.0 MB/second. seems to low. do you think its because I dont have a BBU?
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