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Lian Li EX-50 or EX-503 / ESATA or USB 3.0 - Page 5

post #41 of 49
Someone could give some suggestions?

In this moment I'm wondering about Lian-Li.

It has a very nice product, but without some kind of support it's unuseful.
After 3 RMA without any feedback, I'm moving all the files out of the RAID5.

I have a 5x2TB Raid5.

I suspect that the REAL ORIGINE of my problems is the JMicron HW Raid Manager utility.
Now I'm copying 1TB from Lian-Li to the the additional disk and JMicron Manager is off:
seems going smooth.

I had 4 problems:

- at 2TB of occupied space the RAID5 got offline (changed from USB3 to eSata
and seemed to solve the problem).

- Another problem: RAID5 goes offline when I try to copy a 36GB file. Is it too big? :-O

- I have a degradeted RAID5 because LianLi doesn't like a disk: "PAGE 0 DAMAGE ERROR".
Nowhere in Internet there is an explanation about this string!
I made all the test on disk. The disk is PERFECT, but no way: LianLi EX-503B refused to add it
again to the RAID5 chain.

- I put another NEW disk and there was a failure in rebuilding after 1%: so I'm copying all
data out of EX-503B to other disks.

I have a degradeted RAID5 and I'm praying for an happy ending...

Thanks
post #42 of 49
I just hooked up my EX-503 and using it as individual disks (4x HDDs) until I have enough money to buy 4TBx4 for a 8TB RAID10.

I am using a ASUS P8Z68 Deluxe mobo and using box's USB 3.0 it BSODed my machine. I'm thinking it may have something to do with the Renesas USB3.0 controller on my 6 series chipset. I don't have a 7 series chipset lying around to test if this occurs on Intel's native USB 3.0 controller.

When transferring a big system image file over USB 3.0 the transfer window would often freeze and not allow me to move the window or cancel. Accessing any of the drives during transfer would lockup whatever window that opened (until the file transfer was complete).
Transfer speeds over USB 3.0 are very slow, around 25MB/sec which seems like it's transferring at USB 2.0 speeds.

I switched over to eSATA and so far no BSODs *knock on wood*, and transfer speeds settle around 65MB/sec.
post #43 of 49
Hi All,

this post is about the solution of my case.

Lian-Li Support has been very kind and after a long long analysis we discover the problem was a misworking
controller. It was a very annoying issue and difficult to find.

Suddenly they sent me a new device and now all is working properly.

By eSata, I have a smooth 220-230 MB/s input/output.

Ex-503B has very good performance thumb.gif

Bye!
post #44 of 49
Quote:
Originally Posted by Engineer3D View Post

Hi All,

this post is about the solution of my case.

Lian-Li Support has been very kind and after a long long analysis we discover the problem was a misworking
controller. It was a very annoying issue and difficult to find.

Suddenly they sent me a new device and now all is working properly.

By eSata, I have a smooth 220-230 MB/s input/output.

Ex-503B has very good performance thumb.gif

Bye!

How are you achieving a sustained 220-230MB/s transfer speed? No single 7200rpm HDD has that type of sustained transfer speed.

Are you using the drives in RAID0/5/10?

FYI, 220-230MB/s sustained transfer isn't even possible on Vector and 840 PRO class SSDs.

What I mean by sustained transfers is when you're transferring around 500GiB+ of data. Even the Vector and 840 PRO SSDs in RAID0 will take a big hit when it starts moving a big picture folder with a lot of small files.

That is why I'm highly skeptical of your 220-230MB/s claim on the EX-503. If what you're claiming is true, then my EX-503 is faulty and requires a RMA.
Edited by barcode71 - 7/4/13 at 4:24pm
post #45 of 49
Quote:
Originally Posted by barcode71 View Post

FYI, 220-230MB/s sustained transfer isn't even possible on Vector and 840 PRO class SSDs.

What I mean by sustained transfers is when you're transferring around 500GiB+ of data. Even the Vector and 840 PRO SSDs in RAID0 will take a big hit when it starts moving a big picture folder with a lot of small files.

Perhaps it might just be due to the type of data? I reckon 500GiB worth of 25-40GiB Blu-ray rips would copy faster than 500GiB worth of 10-25MB RAW images.
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post #46 of 49
Quote:
Originally Posted by rui-no-onna View Post

Perhaps it might just be due to the type of data? I reckon 500GiB worth of 25-40GiB Blu-ray rips would copy faster than 500GiB worth of 10-25MB RAW images.

And that's what Engineer3D failed to clarify, but lets get back to HDDs. The fastest consumer 7200rpm HDD with 1TB platters levels out around ~80MB/s and that's if both drives are identical. Transfer speed is affected by many variables from the age of the drive, technology used and the controller. Obviously if someone is transferring data from a old PATA drive to the latest SATA drive isn't going to see the ~80MB/s sustained transfer speeds.

I'm just curious how Engineer3D managed his claim of 220-230MB/s transfer speed, because those numbers sound more like burst speed and RAID speeds than sustained transfer speeds.

All HDD review sites share a common fallacy, they almost never show you the average sustained write speeds. They like to throw big triple digit numbers at you making you think their HDDs transfer at 150MB/s+ speeds when in fact their sustained transfer rates are less than half that number.
post #47 of 49
Quote:
Originally Posted by barcode71 View Post

And that's what Engineer3D failed to clarify.

I'm just curious how Engineer3D managed his claim of 220-230MB/s transfer speed, because those numbers sound more like burst speed and RAID speeds than sustained transfer speeds.

Engineer3D already mentioned 5x2TB drives in RAID5 and a 36GB file in his initial post...

Quote:
Originally Posted by barcode71 View Post

The fastest consumer 7200rpm HDD with 1TB platters levels out around ~80MB/s and that's if both drives are identical. Transfer speed is affected by many variables from the age of the drive, technology used and the controller. Obviously if someone is transferring data from a old PATA drive to the latest SATA drive isn't going to see the ~80MB/s sustained transfer speeds.

All HDD review sites share a common fallacy, they almost never show you the average sustained write speeds. They like to throw big triple digit numbers at you making you think their HDDs transfer at 150MB/s+ speeds when in fact their sustained transfer rates are less than half that number.

The WD10EZEX (1TB 7200RPM) maintains 150MB/s up to 500GB capacity. It only tapers below 100MB/s in the last 100GB. The WD20EFRX (2TB 5400RPM) maintains 100MB/s up to 1.5TB, alas performance quickly drops to 65MB/s after that. Obviously, there's some overhead involved while copying but the picture isn't quite as dismal as you paint.

Maybe I'm looking at the wrong sites but the HDD reviews I've seen usually show maximum/average/minimum sequential speeds. Most even show the data throughput curves for the drives (usually HDTune Pro or HDTach screenshots). Personally, I usually just look at the HDTune/HDTach screenshot and average sequential speeds.
Edited by rui-no-onna - 7/5/13 at 12:19am
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post #48 of 49
Hi All,

now I'm going to explain.

First of all I have 5 disks in raid5. They are 5K hitachi disks of 2TB (speed of 80MB/s each one).

The mainboard is an Asus P9X79 Pro with ASmedia controller.

I have inside 2 SSDs (240GB+480GB), and often I have to transfer my CFD/FEM simulation to LianLi storage.
Usually they are among 10GB and 80GB of datas (big and little files mixed).
With big files I mean 40-50GB at once.

I didn't make any test, by I rely on win7 copy time.
Usually this time is respected. So there are no great deviations of countdown.

For having this sustained transfer rate I activated the internal writing cache of device
(hoping that electricity doesn't betray me during transfer). I don't matter because,
at least ,I make again the copy.

I suppose that 220-230MB isn't the max speed but it's limited by eSata II interface.

I hope that's enough

Best regards
post #49 of 49
Quote:
Originally Posted by rui-no-onna View Post

Engineer3D already mentioned 5x2TB drives in RAID5 and a 36GB file in his initial post...
The WD10EZEX (1TB 7200RPM) maintains 150MB/s up to 500GB capacity. It only tapers below 100MB/s in the last 100GB. The WD20EFRX (2TB 5400RPM) maintains 100MB/s up to 1.5TB, alas performance quickly drops to 65MB/s after that. Obviously, there's some overhead involved while copying but the picture isn't quite as dismal as you paint.

Maybe I'm looking at the wrong sites but the HDD reviews I've seen usually show maximum/average/minimum sequential speeds. Most even show the data throughput curves for the drives (usually HDTune Pro or HDTach screenshots). Personally, I usually just look at the HDTune/HDTach screenshot and average sequential speeds.

Yes, I'm aware that most sites show maximum/average/minimum sequential speeds and use HD benchmarking software. What they almost never show is transferring 500GB+ data from one drive to another. Most of the time it's just a combination of files are add up to <10GB.

I get great speeds (~120MB/s) when transferring <10GB files from my Hitachi 7K4000 to a 7K3000 (both 7200rpm drives), but those speeds drop to ~75MB/s when I move 500GB+ of data, and that's what HDD reviews never show.
Quote:
Originally Posted by Engineer3D View Post

Hi All,

now I'm going to explain.

First of all I have 5 disks in raid5. They are 5K hitachi disks of 2TB (speed of 80MB/s each one).

The mainboard is an Asus P9X79 Pro with ASmedia controller.

I have inside 2 SSDs (240GB+480GB), and often I have to transfer my CFD/FEM simulation to LianLi storage.
Usually they are among 10GB and 80GB of datas (big and little files mixed).
With big files I mean 40-50GB at once.

I didn't make any test, by I rely on win7 copy time.
Usually this time is respected. So there are no great deviations of countdown.

For having this sustained transfer rate I activated the internal writing cache of device
(hoping that electricity doesn't betray me during transfer). I don't matter because,
at least ,I make again the copy.

I suppose that 220-230MB isn't the max speed but it's limited by eSata II interface.

I hope that's enough

Best regards

Thanks for the update smile.gif
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