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PERC 5/i RAID Card: Tips and Benchmarks - Page 621

post #6201 of 7257
I wish my case looked that neat... stupid Antec Design. But hmm, that is a pretty low read speed, what stripe size do you have it set to?

Those Barracudas look like a failure waiting to happen D: Time to swap them out for some WD reds/RE4s later on if you really want data integrity. You can have two drives fail at the same time! You just can't have more than two drives fail, otherwise time to put in an order for some more hard drives. Swapping out 4 drives would sure take a loooonnnggg time to rebuild though...
post #6202 of 7257
Thanks, I don't mind spending a bit of extra time for my cable management as I love the clean look. (Also helps it not a gaming rig as well I guess hehe)

I'm loving the Fractal R3 for it's build quality and practicality, it's one of my favourite Midi cases at the moment.

I went with the default 64k as that seemed to be recommended. I haven't migrated data yet so I can still play around with it if I want to, do you have any suggestions?

Also, does anyone know how the Fanout cables from SAS_0 and SAS_1 correspond to the drive numbers 0-7 in the controller BIOS? (I mean, if a drive fails, how do I know which one I have to pull?)

I can probably check against serial numbers in the LSI software, but that means pulling each drive out to check it's details.
Edited by AUS.R34P3R - 1/7/13 at 10:22pm
 
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post #6203 of 7257
Quote:
Originally Posted by AUS.R34P3R View Post

Thanks, I don't mind spending a bit of extra time for my cable management as I love the clean look. (Also helps it not a gaming rig as well I guess hehe)
I'm loving the Fractal R3 for it's build quality and practicality, it's one of my favourite Midi cases at the moment.
I went with the default 64k as that seemed to be recommended. I haven't migrated data yet so I can still play around with it if I want to, do you have any suggestions?
Also, does anyone know how the Fanout cables from SAS_0 and SAS_1 correspond to the drive numbers 0-7 in the controller BIOS? (I mean, if a drive fails, how do I know which one I have to pull?)
I can probably check against serial numbers in the LSI software, but that means pulling each drive out to check it's details.

I took photos of my SAS drives when I installed them recently, and saved those somewhere to record which serial # is in which slot exactly for that reason. Sadly.... figuring out which drive to pull is going to be a problem using these cards in desktop machines instead of dell servers with hot-swap bays (and flashing amber LED's) this is one of the problems we run in to.. ah well.
post #6204 of 7257
Quote:
Originally Posted by AUS.R34P3R View Post

Thanks, I don't mind spending a bit of extra time for my cable management as I love the clean look. (Also helps it not a gaming rig as well I guess hehe)
I'm loving the Fractal R3 for it's build quality and practicality, it's one of my favourite Midi cases at the moment.
I went with the default 64k as that seemed to be recommended. I haven't migrated data yet so I can still play around with it if I want to, do you have any suggestions?

Hahaha yeah, its just that the case I have is horrible for cable management. All you get is a bit of space behind the hard drives and thats it. But oh well, as long as things work.

I'm actually not sure, from what I've read, larger stripe sizes are better for large files, but for smaller files/writes (like database) a smaller stripe size is better. I'm rebuilding my RAID5 to go to RAID10 with 256k stripe since I use it to store large files and backup my boot drive, and often transfer files from it to my RAID0, so I will run a bench again to see.
Quote:
Originally Posted by AUS.R34P3R View Post

Also, does anyone know how the Fanout cables from SAS_0 and SAS_1 correspond to the drive numbers 0-7 in the controller BIOS? (I mean, if a drive fails, how do I know which one I have to pull?)
I can probably check against serial numbers in the LSI software, but that means pulling each drive out to check it's details.

Mine came with stickers saying what port they are, but it should be 0-7 from right to left with the way the card is in your system currently.
post #6205 of 7257
When I set mine up, it showed 0-7, left to right, looking at the back of the card.
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post #6206 of 7257
Quote:
Originally Posted by wtomlinson View Post

When I set mine up, it showed 0-7, left to right, looking at the back of the card.
Thats right to left, but your picture is correct.
post #6207 of 7257
I know that's the only picture I could quickly find. I'm at work, so all the image search results were blocked because most pointed to ebay or imgur. biggrin.gif
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post #6208 of 7257
Quote:
Originally Posted by penguinlogik View Post

Some benchmarks with a RAID 5 and RAID 0 setup on my PERC 5/i card. Hardware is in the sig. RAID5 WD Green 1.5TB X 5 (Click to show)

CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 402.370 MB/s
Sequential Write : 309.588 MB/s
Random Read 512KB : 64.373 MB/s
Random Write 512KB : 54.711 MB/s
Random Read 4KB (QD=1) : 0.735 MB/s [ 179.5 IOPS]
Random Write 4KB (QD=1) : 0.612 MB/s [ 149.4 IOPS]
Random Read 4KB (QD=32) : 2.812 MB/s [ 686.4 IOPS]
Random Write 4KB (QD=32) : 0.794 MB/s [ 193.8 IOPS]
Test : 500 MB [D: 18.5% (1034.5/5586.9 GB)] (x3)
Date : 2013/01/04 13:13:05
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
RAID 0 Spinpoint F3 1TB X2 (Click to show)

CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 251.900 MB/s
Sequential Write : 252.669 MB/s
Random Read 512KB : 102.563 MB/s
Random Write 512KB : 127.471 MB/s
Random Read 4KB (QD=1) : 1.259 MB/s [ 307.4 IOPS]
Random Write 4KB (QD=1) : 3.998 MB/s [ 976.1 IOPS]
Random Read 4KB (QD=32) : 1.521 MB/s [ 371.2 IOPS]
Random Write 4KB (QD=32) : 3.849 MB/s [ 939.6 IOPS]
Test : 500 MB [E: 21.8% (406.2/1861.9 GB)] (x3)
Date : 2013/01/04 13:19:59
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
Overall, very happy with the setup, haven't had any drives give me any problems so far ( although I expect it to, which is why one drive is a hotspare) and I backup the important data anyways. This is also on LSI firmware. I remember that the sequential reads are ~100mb/s slower on the Dell firmware, but write speeds were about the same.

I did some more testing and I got this out of it.

RAID10 3 Spans 2 drives each = slower than RAID5
I actually got slower speeds than my spinpoint RAID0 array. RAID 5 128k stripe (Click to show)

CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 408.260 MB/s
Sequential Write : 317.702 MB/s
Random Read 512KB : 57.518 MB/s
Random Write 512KB : 90.965 MB/s
Random Read 4KB (QD=1) : 0.830 MB/s [ 202.6 IOPS]
Random Write 4KB (QD=1) : 0.861 MB/s [ 210.3 IOPS]
Random Read 4KB (QD=32) : 3.084 MB/s [ 752.9 IOPS]
Random Write 4KB (QD=32) : 0.698 MB/s [ 170.3 IOPS]

Test : 500 MB [D: 0.0% (0.3/5586.9 GB)] (x3)
Date : 2013/01/08 15:30:47
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
In general, write and read speeds increased, however since this is purely a synthetic benchmark, not much can really be read from this, but since I do this to mainly transfer large files, this should be perfect. Higher random reads/writes (4k) are nice too though.
Edited by penguinlogik - 1/8/13 at 3:40pm
post #6209 of 7257
Does it matter which SAS port I use for configuring my new RAID10 array?
post #6210 of 7257
As in SAS_0 or SAS_1 on the card? Not at all.
 
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