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My RAID 0 array just failed :(

post #1 of 38
Thread Starter 
Well it was bound to happen. I do have some backups but I haven't backed the data on those drives in a while. I'm thinking of sending them to Seagate recovery so that they can recover as much as possible.

The idea of a NAS was in my head for a while and now I know I have to get one. I'm going to build my own, but I have a few questions before getting started.

1.I will be using RAID 6. From what I've read, it has 2 drive redundancy and doesn't suffer from crippled write performance as RAID 5 does. Am I correct?

2.I'm thinking of grabbing 8 or so 4 TB drives for my array. That should equal 24TB of storage. I might need more in the future which is why I'm asking this, can I add more drives to the array later on without having to disband the whole grid?

3.which Operating system should I be using? I've heard that Free NAS is good and that there might be better alternatives.

4.Considering that I'm going for 8 drives to start, I'm going to need a RAID card capable of supporting 8 or more SATA devices. What's a good option? Will I be needing extra CPU horsepower or will the raid card take care of all the calculations?

5.Memory requirements. Is 4 GB enough? How about 8 gigs or more? Does it make any difference to the performance of the array?

6.Ethernet. My motherboard (RIVE) has Intel gigabit ethernet. I'm guessing the throughput of the NAS will overpower the bandwidth the intel NIC can provide. If so, will I need to get a seperate network card to have full performance?

7. I have a Typical Cisco router with 4 ports. will that be enough to handle the traffic or will I need something beefier?

Thank you in advance, I'm a bit down after what just happened. I guess preventive medicine is always better than the treatment or the cure, only that I realized it too late.
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post #2 of 38

1. RAID 5 is faster overall and can rebuild faster in the event of failure. RAID 6 tries to eliminate the main downside of RAID 5, a two disk failure event. However, the added complexity and rebuild time may be an issue, especially with 4 TB drives. You also consider RAID 5 with a hotspare.

2. You can add more drives to an array, however, at these sizes you may want to consider having two or more smaller RAID arrays.

3. Free NAS is good. Most linux distros can also work well. You can even use Windows Professional or Server if want it to do more than just NAS.


4. I would want a powerful controller with cache. Something like a MegaRAID SAS 9361-4i. There are cheaper ways, such as buying a IBM card and reflashing it, but with this kind of system, I would just get something off the shelf.

5. System memory should not have a large impact on RAID performance. 

6. Unless you are going upgrade to 10 Gb LAN you are stuck with Gigabit speeds. The onboard NIC is an intel NIC, and is actually pretty good. I would not bother changing it for another Gigabit card.

7. Does not matter the ports, its limited by gigabit speeds. Not much you can do there.

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post #3 of 38
Quote:
Originally Posted by Cyclops View Post

Well it was bound to happen. I do have some backups but I haven't backed the data on those drives in a while. I'm thinking of sending them to Seagate recovery so that they can recover as much as possible.

The idea of a NAS was in my head for a while and now I know I have to get one. I'm going to build my own, but I have a few questions before getting started.


2.I'm thinking of grabbing 8 or so 4 TB drives for my array. That should equal 24TB of storage. I might need more in the future which is why I'm asking this, can I add more drives to the array later on without having to disband the whole grid?

I'll answer what I know from experience here...

 

AFAIK it's the RAID card that will handle HDD expansion ports and the software/OS will handle the process of either having a new Volume or RAID Array so you can add more in the future.

Quote:
3.which Operating system should I be using? I've heard that Free NAS is good and that there might be better alternatives.

FreeNAS is really good for larger RAID arrays and give a lot more control than Windows based server OSes.

Quote:
4.Considering that I'm going for 8 drives to start, I'm going to need a RAID card capable of supporting 8 or more SATA devices. What's a good option? Will I be needing extra CPU horsepower or will the raid card take care of all the calculations?

A dual-core intel CPU @ 2.5ghz ~ 3.0ghz will be enough unless you have some kind of web-serve type of application for the NAS where in there are a lot of multiple inputs and outputs and multiple clients accessing the server all at one time.

Quote:
5.Memory requirements. Is 4 GB enough? How about 8 gigs or more? Does it make any difference to the performance of the array?

For FreeNAS from what I've read on their documentation the more RAM the better performance, with FreeNAS the more storage you have so scales the RAM you need please take a look at this if you're interested in FreeNAS:

http://doc.freenas.org/index.php/Hardware_Recommendations

 

But from my experience with a small NAS server with only 10TB of HDD space, an Intel Celeron Dual-Core CPU @ 2.4ghz w/ 4GB of RAM was enough to run WHS 2011 (Vail) with 4 concurrent clients accessing the HDDs at the same time via TP-Link 4 port Gigabit Switch all wired with Cat6 cables.

Quote:
6.Ethernet. My motherboard (RIVE) has Intel gigabit ethernet. I'm guessing the throughput of the NAS will overpower the bandwidth the intel NIC can provide. If so, will I need to get a seperate network card to have full performance?

No comment on this one, my Atheros NIC on my NAS server hasn't displayed any slow-downs so far as the only use of the NAS server is to store family movies, photos, music (FLAC), self-ripped BD/DVDs and I haven't noticed any lag or stuttering during playback.

 

7. I have a Typical Cisco router with 4 ports. will that be enough to handle the traffic or will I need something beefier?

Switches are cheap you can just get a new one if your old one isn't really up to the task you're making it do.

 

There are a lot more people who have experience with FreeNAS and they'll be able to help you further cause I only had a 1 year stint with FreeNAS. :P

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post #4 of 38
RAID only increases availability, it's not a backup. Save the money you'd spend on 2 extra drives and get a Backblaze subscription.
post #5 of 38
Quote:
Originally Posted by Dyson Poindexter View Post

RAID only increases availability, it's not a backup. Save the money you'd spend on 2 extra drives and get a Backblaze subscription.

 

Agreed. I have a Windows Server 2012 Virtualization and File Server and even I have decided the cloud is just easier than worrying about a seperate external drive I can keep in the safe. 

 

This is a good plan, just make sure your broadband provider is not a bandwidth Nazi. I have gotten in trouble for uploading more than 300 GB a month

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post #6 of 38
Thread Starter 
Cloud storage is out of the question. It's nowhere near as fast as local storage and I rather not rely on the internet for my data.

I'm reading up on that free NAS article CramComplex posted. Is ECC memory really necessary? Most mainstream boards don't support ECC so I might have to get a server board.
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post #7 of 38
Quote:
Originally Posted by Cyclops View Post

Cloud storage is out of the question. It's nowhere near as fast as local storage and I rather not rely on the internet for my data.
Not cloud storage. Cloud backup. What if lightning strikes your NAS? Or someone kicks in your door and thinks your drive array should be traded for drugs? RAID isn't a backup. RAID is only for when you can't afford to wait a day to get your files back.

For what you'd spend on 2 extra 4TB drives, you could get 6 years of Backblaze. So it's cheaper too.
post #8 of 38
Quote:
Originally Posted by Cyclops View Post

Cloud storage is out of the question. It's nowhere near as fast as local storage and I rather not rely on the internet for my data.

I'm reading up on that free NAS article CramComplex posted. Is ECC memory really necessary? Most mainstream boards don't support ECC so I might have to get a server board.

 

ECC isn't really an option if you aren't using a server grade mobo. What's your application for the NAS? If it's just for home use then it really isn't necessary and a consumer mobo and non-ECC RAM is enough for SOHO use.

 

My NAS (RAID1) can handle After Effects CS6 rendering 1080p MOV files as fast as having a HDD on my main workstation. :/

 

EDIT:

 

Quote:
Originally Posted by Dyson Poindexter View Post

Not cloud storage. Cloud backup. What if lightning strikes your NAS? Or someone kicks in your door and thinks your drive array should be traded for drugs? RAID isn't a backup. RAID is only for when you can't afford to wait a day to get your files back.

For what you'd spend on 2 extra 4TB drives, you could get 6 years of Backblaze. So it's cheaper too.

 

From a production standpoint it just offers data redundancy and remote back-up but there will be times that you cannot access your data when the internet goes down. (Which does happen from time to time in Toronto.) From what I understand the OP wants a local storage solution where he can have his files readily available. I haven't had a problem with my NAS in the 2 years it has been in service even with black-outs during the last Toronto winter.


Edited by CramComplex - 3/26/14 at 5:40pm
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post #9 of 38
Thread Starter 
Quote:
Originally Posted by CramComplex View Post

ECC isn't really an option if you aren't using a server grade mobo. What's your application for the NAS? If it's just for home use then it really isn't necessary and a consumer mobo and non-ECC RAM is enough for SOHO use.

My NAS (RAID1) can handle After Effects CS6 rendering 1080p MOV files as fast as having a HDD on my main workstation. :/

EDIT:


From a production standpoint it just offers data redundancy and remote back-up but there will be times that you cannot access your data when the internet goes down. (Which does happen from time to time in Toronto.) From what I understand the OP wants a local storage solution where he can have his files readily available. I haven't had a problem with my NAS in the 2 years it has been in service even with black-outs during the last Toronto winter.

Exactly.

Well it's home use only so I guess ECC won't be needed. I'm thinking of 16 gigs of ram and an i3.

I'm not at all familiar with raid cards. Is this a good one? It's the highest rated RAID card on newegg:

http://www.newegg.ca/Product/Product.aspx?Item=N82E16816118112

Apparently I can hook up to 8 drives to it. Gotta get the cables for it though which is not a problem.

I read that it's best to load up FreeNAS on a thumbdrive. Can't I just install it on a small SSD? That's way more practical.

Thanks for all your help by the way. It's easing the learning curve.
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4770K @ 4.7 GHz 1.39V Maximus VI Gene MSI GTX 1070 Seahawk EK X @ 2.1/9.0 Ghz 16GB G.Skill Sniper 2600 MHz 11-14-14-14-2T 1.65V 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Pro 256GB WD Green 6TB I will end you Dazmode Darkside Maple Leaf Special Edition 
CoolingCoolingCoolingCooling
EK GTX 1070 Seahawk Feser TFC Admiral 240 Black Ice GTX Xtreme M92 6 * Silverstone SST-FN121-P 
CoolingOSMonitorMonitor
2 * Noctua NF-B9 Redux 7 Ultimate 64-bit Samsung U28D590D 28" 4K Overlord Tempest X270OC 27" 1440P 
KeyboardPowerCaseMouse
Corsair Vengeance K60 EVGA SuperNova 750 G2 NZXT Vulcan (With Attached Handle) Logitech G500 
Mouse Pad
XTRAC PADS Ripper XXL 
CPUMotherboardRAMHard Drive
E5-2670 Supermicro X9SRA 64GB Samsung ECC 1333 MHz Mushkin Ventura Pro 32GB (Boot) 
Hard DriveOptical DriveCoolingOS
10 * 6TB HGST Deskstar NAS (RAID Z2) I will harm you Corsair H60 FreeNAS 9.10 
PowerCase
Corsair RM650 (Passive) Fractal Design Define R5 
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No Bottlenecks
(21 items)
 
 
File Server
(10 items)
 
CPUMotherboardGraphicsRAM
6700K @ 4.8 GHz 1.35V Gigabyte Z170X Gaming 7 GTX 1080 Reference @ 2.05 / 11 GHz 32GB G.SKILL Ripjaws 3350 MHz 15-14-14-34-2T 1.35V 
Hard DriveHard DriveHard DriveOptical Drive
Intel 750 400GB PCIe WD Red 8TB NAS 10 * 6TB HGST Desktar NAS (RAID Z2) Go away 
CoolingCoolingCoolingCooling
EK-FB GA Z170X Monoblock EK-FC1080 GTX Waterblock/Backplate 2 * Dazmode Darkside LP360 MCP355 DDC @ 7V 
CoolingOSMonitorKeyboard
9 * Corsair SP120 Quiet Edition @ 7V 8.1 Pro 12-bit Asus VG27HE 27" 1080p @ 145Hz Corsair Vengeance K60 
PowerCaseMouseMouse Pad
SeaSonic SS-520FL2 - Fanless Fractal Design Define S Logitech G502 Proteus Core XTRAC PADS Ripper XXL 
Audio
Asus Xonar DSX 
CPUMotherboardGraphicsRAM
4770K @ 4.7 GHz 1.39V Maximus VI Gene MSI GTX 1070 Seahawk EK X @ 2.1/9.0 Ghz 16GB G.Skill Sniper 2600 MHz 11-14-14-14-2T 1.65V 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Pro 256GB WD Green 6TB I will end you Dazmode Darkside Maple Leaf Special Edition 
CoolingCoolingCoolingCooling
EK GTX 1070 Seahawk Feser TFC Admiral 240 Black Ice GTX Xtreme M92 6 * Silverstone SST-FN121-P 
CoolingOSMonitorMonitor
2 * Noctua NF-B9 Redux 7 Ultimate 64-bit Samsung U28D590D 28" 4K Overlord Tempest X270OC 27" 1440P 
KeyboardPowerCaseMouse
Corsair Vengeance K60 EVGA SuperNova 750 G2 NZXT Vulcan (With Attached Handle) Logitech G500 
Mouse Pad
XTRAC PADS Ripper XXL 
CPUMotherboardRAMHard Drive
E5-2670 Supermicro X9SRA 64GB Samsung ECC 1333 MHz Mushkin Ventura Pro 32GB (Boot) 
Hard DriveOptical DriveCoolingOS
10 * 6TB HGST Deskstar NAS (RAID Z2) I will harm you Corsair H60 FreeNAS 9.10 
PowerCase
Corsair RM650 (Passive) Fractal Design Define R5 
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post #10 of 38

The SAS 9211-8i is only for RAID 0, 1, 1E, and 10

 

Look at these:

RAID 5/6 Cards on Newegg

 

If it were my money i would choose this one:

LSI MegaRAID SAS 9361-8i 


Edited by RushiMP - 3/26/14 at 6:34pm
Titan
(16 items)
 
Apollo
(16 items)
 
CPUMotherboardGraphicsRAM
AMD Ryzen 1800X Asus Crosshair VI AMD Vega FE G.Skill TridentZ 3600 
Hard DriveCoolingOSMonitor
Samsung 960 Pro NVME Corsair H110 with Noctua PPC 140 Fans Windows 10 NEC P402 
MonitorMonitorKeyboardPower
NEC P402 NEC P402 Steelseries Corsair AX1500 
CaseMouseMouse PadAudio
Corsair Obsidian 650D + SGI Fuel Case Mod Logitech G700 Deskpad XXXXL Logitech Z906 
CPUMotherboardGraphicsGraphics
Ryzen 1800X Asus Crosshair VI XFX RX460 XFX RX460 
RAMHard DriveCoolingOS
G.Skill TridentZ DDR4-3600  Samsung 960 Pro NVMe Scythe Ninja 4 Windows 7 
MonitorMonitorMonitorKeyboard
Barco 21 MDRC-2120 Coronis Fusion 6MP LED MDCC-6230 Barco 21 MDRC-2120 Logitech MK710 
PowerCaseMouseMouse Pad
Seasonic X-660 SGI Octane Mod Logitech G700 Deskpad XXXL 
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Titan
(16 items)
 
Apollo
(16 items)
 
CPUMotherboardGraphicsRAM
AMD Ryzen 1800X Asus Crosshair VI AMD Vega FE G.Skill TridentZ 3600 
Hard DriveCoolingOSMonitor
Samsung 960 Pro NVME Corsair H110 with Noctua PPC 140 Fans Windows 10 NEC P402 
MonitorMonitorKeyboardPower
NEC P402 NEC P402 Steelseries Corsair AX1500 
CaseMouseMouse PadAudio
Corsair Obsidian 650D + SGI Fuel Case Mod Logitech G700 Deskpad XXXXL Logitech Z906 
CPUMotherboardGraphicsGraphics
Ryzen 1800X Asus Crosshair VI XFX RX460 XFX RX460 
RAMHard DriveCoolingOS
G.Skill TridentZ DDR4-3600  Samsung 960 Pro NVMe Scythe Ninja 4 Windows 7 
MonitorMonitorMonitorKeyboard
Barco 21 MDRC-2120 Coronis Fusion 6MP LED MDCC-6230 Barco 21 MDRC-2120 Logitech MK710 
PowerCaseMouseMouse Pad
Seasonic X-660 SGI Octane Mod Logitech G700 Deskpad XXXL 
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