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Planning to rebuild my 20TB WHS Flexraid server: Information requested. - Page 18

post #511 of 916
2/2/13 at 10:03am
Quote:
Originally Posted by Mfusick View Post

Oh.. that is not the backplate. that is the internal fan plate. But yes... that looks perfect.

Yea that's what I meant.
Quote:
Originally Posted by Mfusick View Post

I still need figure out the back ones though.. they are the loudest.

Perhaps just replace with quieter model and slow them down ???

Anyone have advice on that? Use fan controller ? Or 7v trick ?

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&N=-1&isNodeId=1&Description=noctua+80mm&x=0&y=0
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post #512 of 916
2/2/13 at 10:07am
Thread Starter 
not cheap frown.gif
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post #513 of 916
2/2/13 at 10:14am
Quote:
Originally Posted by Mfusick View Post

not cheap frown.gif

I know frown.gif
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post #514 of 916
2/8/13 at 6:39am
Thread Starter 
$20 a fan just somehow hits me wrong. I might buy the plate today... and use a few of the crystal clear Rosewill fans I have that are 120mm and I paid $2.99 for in a 5 pack.

They are going to be much quieter than the Norco Jet engines.

I will probably use the Y splitter and run them off the motherboard fan headers- and enable fan speed control and this should allow them to slow down when the machine it not running hard.
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post #515 of 916
2/8/13 at 3:50pm
Thread Starter 
I posted this in another thread.. but perhaps should have put it here. I messed around in my flexraid and dropped out a hitachi 2TB and a couple 2TB greens that had errors.

My drives are full and I am looking to start up flexraid again with new config. I am trying to figure out how long this will take.

So I dropped out three drives (GREEN DRIVES) and I want to initialize my server with my Seagate 3TB and 1 Green WD 2TB. My Green 3TB WD is my Parity drive but this is temp.

So I basically have:

Seagate 3TB#1
Seagate 3TB#2
Seagate 3TB#3
Seagate 3TB#4
Seagate 3TB#5
Seagate 3TB#6
WD 2TB
WD 3TB PRU

Total is 20,000 GB right ?? (20TB) 3000+3000+3000+3000+3000+3000+2000 ( give or take for 1024 thing)

So I am watching it tick by and the lowest I see the Parity Computation process speed reach is about 85MB/s

So that means it's processing data at 85MB per second right ?

So then.. could I divide 20,000 GB by 85MB per second = 235. Does that mean it would take 235 seconds ? That makes no sense to me. Obviously I am an idiot right ?

So then I thought

85MB second = 85x60seconds= 5100MB per minute. That's 5GB right ? So it's doing about 5GB per minute? (Still seems fast right ???)

So that means 20,000 GB divided by 5GB per minute = 4000 minutes. That seems about right ???

so 4000 minutes divided by 60 = 66.6 hours.

That means it's gonna take this pig 66 hours to finish ????

Seriously ????

I mean I have some spare space (at least 200GB per HDD) and the proccess is sometimes faster but with the green drive as parity I think it's limited to a combo of how fast CPU can process parity and how fast the slow green drive can record it.

so I guess 50 hours would be a reasonable expectation ???

holy smokes !!!


Am I even close ??? Or does my math and brain just suck ????
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post #516 of 916
2/8/13 at 7:39pm
It's the price you pay for RAID greed.
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post #517 of 916
2/8/13 at 7:53pm
Dividing 20k GB with 85 "MB" is wrong since the units are different. For simplicity, let's say there are 1000GB in a TB. That would mean 85MB is 0.085GB. Now dividing 20kGB by .085GB gives you roughly 235294 seconds which is roughly 66 hours. So yes, it would take 66 hours to compute parity for 20TB. That seems about right. I get 85MB/s parity calculation speed too with my WD Green drives. It took me about 11 hours to compute parity for about 3TB worth of data. And you have roughly 6 times more data than me. So yea, everything is going normally.
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post #518 of 916
2/8/13 at 8:15pm
My ZFS rig would resilver that 20GB in 10 hours. (Sorry, I don't mean to be an a-hole, I just love the performance I get out of my ZFS rig and can't help but brag about it.) biggrin.gif

60+ hours is a long time.
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post #519 of 916
2/8/13 at 8:18pm
Quote:
Originally Posted by Puwaha View Post

My ZFS rig would resilver that 20GB in 10 hours. (Sorry, I don't mean to be an a-hole, I just love the performance I get out of my ZFS rig and can't help but brag about it.) biggrin.gif

60+ hours is a long time.

20GB? 10 hours? That sir, is horrible performance wink.gif

Both FlexRAID and ZFS has their advantages and disadvantages. I wouldn't particularly call one better than the other.
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post #520 of 916
2/8/13 at 8:30pm
Quote:
Originally Posted by Puwaha View Post

My ZFS rig would resilver that 20GB in 10 hours. (Sorry, I don't mean to be an a-hole, I just love the performance I get out of my ZFS rig and can't help but brag about it.) biggrin.gif

60+ hours is a long time.

"Performance" when building a software RAID array/parity.

That's a new one on me.

Carry on...
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post #521 of 916
2/8/13 at 8:56pm
FlexRAID is still probably the "fastest" software RAID solution out there. Because it doesn't strip the data amongst drives, accessing files from different drives at the same time would give much faster read speeds overall. Not sure if I worded that properly, but I hope you all can understand what I mean frown.gif
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post #522 of 916
2/9/13 at 2:06pm
Thread Starter 
Quote:
Originally Posted by amarshonarbangla View Post

FlexRAID is still probably the "fastest" software RAID solution out there. Because it doesn't strip the data amongst drives, accessing files from different drives at the same time would give much faster read speeds overall. Not sure if I worded that properly, but I hope you all can understand what I mean frown.gif

Right,

Hardware RAID is faster but software raid is more flexible.
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post #523 of 916
2/9/13 at 2:08pm
Thread Starter 
Quote:
Originally Posted by Puwaha View Post

My ZFS rig would resilver that 20GB in 10 hours. (Sorry, I don't mean to be an a-hole, I just love the performance I get out of my ZFS rig and can't help but brag about it.) biggrin.gif

60+ hours is a long time.

I'm jelly.

But honestly...

I did 20TB and it was done when I woke up this morning.

It did not take as long as I thought.
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post #524 of 916
2/9/13 at 2:38pm
Quote:
Originally Posted by Puwaha View Post

My ZFS rig would resilver that 20GB in 10 hours. (Sorry, I don't mean to be an a-hole, I just love the performance I get out of my ZFS rig and can't help but brag about it.) biggrin.gif

60+ hours is a long time.

Quote:
Originally Posted by Mfusick View Post

I'm jelly.

But honestly...

I did 20TB and it was done when I woke up this morning.

It did not take as long as I thought.


I used 4TB parity with a 105 MB/s parity rate but it only took 11 hours total for my array, which is six drives (20TB)
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post #525 of 916
2/9/13 at 11:18pm
Quote:
Originally Posted by amarshonarbangla View Post

FlexRAID is still probably the "fastest" software RAID solution out there. Because it doesn't strip the data amongst drives, accessing files from different drives at the same time would give much faster read speeds overall. Not sure if I worded that properly, but I hope you all can understand what I mean frown.gif

ZFS is software RAID... but add more vdevs, and you get more performance. It's almost linear, two vdevs... double the performance of one. Three vdevs... triple the performance of one. ZFS was built in mind for commodity/consumer level hard drives and HBAs. FlexRAID is limited to the performance of the one hard drive you are reading/writing to. Now, I understand for most media storage, that a single hard drive is pretty capable, some even match gigabit speeds. But as you discover, parity calculations suffer, and you are doing this daily/weekly/monthly. With ZFS it's on the write. And rebuild times suffer with FlexRAID because you are limited to the performance of that one hard drive, usually the slowest of the bunch.
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post #526 of 916
2/9/13 at 11:19pm
Quote:
Originally Posted by amarshonarbangla View Post

20GB? 10 hours? That sir, is horrible performance wink.gif

It's not astronomical, but pretty good when I still have green drives in the mix.
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post #527 of 916
2/9/13 at 11:39pm
Lol I am sure you meant 20TB and not 20GB. I was making fun your typo wink.gif Unless you really meant 20GB...

Since ZFS strips data, loosing more drives than the # of parity means losing all data. That really scares me frown.gif I know chances of that happening are slim to none, there's still a chance. Plus you will need a separate box for it unless you use bare-metal hypervisors to virtualize all your boxes in one. I have played around with FreeNAS quite a bit. The features it offers for a free product is amazing. ZFS really does intrigue me quite a bit, but integration within Windows was a BIG plus for me when it comes to FlexRAID.
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post #528 of 916
2/10/13 at 6:42am
Thread Starter 
Advantage of Flexraid is data is still on drives even if machine or controller card die
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post #529 of 916
2/10/13 at 7:42am
Quote:
Originally Posted by Mfusick View Post

Advantage of Flexraid is data is still on drives even if machine or controller card die

Just one of many advantages.
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post #530 of 916
2/10/13 at 12:42pm
Thread Starter 
Side question:

What should I set WHS2011 power options to be ?

Should I turn of HDD "NEVER" or should I turn off after say 30 min ????

What is the advantage and disadvantage ?

Would turning them off save $$ on electricity, but just cause them to have to spin up and a small delay when first accessing the server ?
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post #531 of 916
2/10/13 at 8:20pm
Another side question?

How does everyone have network sharing setup?

Flexraid wiki mentions to turn off homegroup since it interferes with builtin storage pool sharing

I keep getting a BSOD with a IRQL_NOT_LESS_OR_EQUAL error when a networked PC tries to access any of the flexraid shares

File/printer sharing is on for both

Password protected sharing is off

Homegroup is not created
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post #532 of 916
2/10/13 at 8:21pm
And you created the shares in Windows first, then copied the settings in FlexRAID right?
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post #533 of 916
2/10/13 at 8:47pm
Quote:
Originally Posted by Dark_Slayer View Post

File/printer sharing is on for both

Password protected sharing is off

Homegroup is not created

Any shares I create outside the flexraid pool work just fine. I can choose them either through the "Map Network Drive" dialog window or clicking through the Network -> Computer Name -> Share Name

Either way works outside the pool, but as soon as I choose one of the Flexraid shares the server (windows 8) has a BSOD with the IRQL_NOT_LESS_OR_EQUAL error
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post #534 of 916
2/10/13 at 8:50pm
Quote:
Originally Posted by amarshonarbangla View Post

And you created the shares in Windows first, then copied the settings in FlexRAID right?

Followed this guide, but W8 instead of WHS http://wiki.flexraid.com/2011/12/03/accessing-your-storage-pool-over-a-network/
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post #535 of 916
2/10/13 at 9:30pm
The Flexraid drive has the shared drive icon (like the image, but it's not a DVD drive smile.gif )

The "Share With" context menu option in the subsequent folders allow me to select "Advanced Options"

The resulting dialog window has a checked box next to "Share this folder"
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post #536 of 916
2/10/13 at 10:15pm
Try changing it to a non-removable and NTFS drive

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post #537 of 916
2/11/13 at 6:27am
Thread Starter 
I don't set up any shares.

I just set sharing on the V drive ( Flexraid) to full permissions. This in WHS.

Then in Flexraid I do same. I share the freakin' drive.

I don't set up individual folders to share or not.

I want it all shared. I share the root drive.

Everything it contains is then shared.

Folders are complicated and odd stuff happens.
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post #538 of 916
2/11/13 at 8:24am
Quote:
Originally Posted by Mfusick View Post

I don't set up any shares.

I just set sharing on the V drive ( Flexraid) to full permissions. This in WHS.

Then in Flexraid I do same. I share the freakin' drive.

I don't set up individual folders to share or not.

I want it all shared. I share the root drive.

Everything it contains is then shared.

Folders are complicated and odd stuff happens.

Deleted all share configurations and shared root Flexraid drive instead (I'd read somewhere not to do this)

Still get the same error

I think this might be a W8 driver issue

http://forum.flexraid.com/index.php/topic,1579.0.html
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post #539 of 916
2/11/13 at 8:26am
Quote:
Originally Posted by amarshonarbangla View Post

Try changing it to a non-removable and NTFS drive

Already using these settings
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post #540 of 916
2/11/13 at 9:44am
Thread Starter 
Quote:
Originally Posted by Dark_Slayer View Post

Deleted all share configurations and shared root Flexraid drive instead (I'd read somewhere not to do this)

Still get the same error

I think this might be a W8 driver issue

http://forum.flexraid.com/index.php/topic,1579.0.html

Why would you not want to share the whole drive?

That's what I do. That is what I want. I don't want to share individual folders. That is a mess.
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