Overclock.net › Forums › Components › Hard Drives & Storage › RAID Controllers and Software › Beginner RAID Question
New Posts  All Forums:Forum Nav:

Beginner RAID Question - Page 3

post #21 of 35
Quote:
Originally Posted by Tator Tot View Post
No problem.
Redundancy just mean you have a backup.

If you need anything else feel free to post.

A basic RAID overview is this:
RAID 0 = Best speed, no backup
RAID 1 = slower speed than RAID 0, you have a backup
RAID 10 = two RAID 1 Arrays put together in RAID 0; maximum speed with a backup
RAID 5 & 6 = Maximum performance possible with most amount of space, while still having a backup
RAID is NOT a backup, but some RAID schemes will tolerate a certain level of disk failure in order to maintain uptime. RAID makes no guarantees of data integrity or data security, only system uptime.



Quote:
Originally Posted by CasanovaFly View Post
Now I know the possibility of an HDD failing if pretty... we'll say small, but planning for the future can't hurt. I would like to think it's something you can usually see coming, but who knows.

Are RAID 1 and RAID 0 the same in the function I'd like them for, being combining two drives into a larger one?

So I could go RAID 1 instead of RAID 0 and have the chance to recover files that may become lost?
As you know, RAID 0 has precisely ZERO tolerance for disk failure. If one disk dies, no matter how many other drives are in the array your data is gone. End of.

RAID 1 is basically real time disk mirroring. What happens on one disk immediately is cloned onto the other(s), including infections and accidental deletions. RAID 1 requires a minimum of two disks and (depending on your perspective) cuts your available storage in half. If a disk fails in RAID 1, you pull the disk and replace it with a fresh one; the system will immediately begin to sync the existing drive with the new one.

For more information on RAID, look here.
Edited by parityboy - 2/25/11 at 4:09am
Ryzen
(12 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Gigabyte GA-AB350M Gaming 3 Palit GT-430 Corsair Vengeance LPX CMK16GX4M2B3000C15 
Hard DriveCoolingOSMonitor
Samsung 850 EVO AMD Wraith Spire Linux Mint 18.x Dell UltraSharp U2414H 
KeyboardPowerCaseMouse
Apple Basic Keyboard Thermaltake ToughPower 850W Lian-Li PC-A04B Logitech Trackman Wheel 
  hide details  
Reply
Ryzen
(12 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Gigabyte GA-AB350M Gaming 3 Palit GT-430 Corsair Vengeance LPX CMK16GX4M2B3000C15 
Hard DriveCoolingOSMonitor
Samsung 850 EVO AMD Wraith Spire Linux Mint 18.x Dell UltraSharp U2414H 
KeyboardPowerCaseMouse
Apple Basic Keyboard Thermaltake ToughPower 850W Lian-Li PC-A04B Logitech Trackman Wheel 
  hide details  
Reply
post #22 of 35
Quote:
Originally Posted by parityboy View Post
RAID is NOT a backup, but some RAID schemes will tolerate a certain level of disk failure in order to maintain uptime. RAID makes no guarantees of data integrity or data security, only system uptime.
Please read the thread; I was trying to over simply RAID for him as some of the terms were confusing him.

Calling it a back up is much easier for some to understand.
Test Bed
(24 items)
 
TTTbox
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K  Biostar TZ774XE Power Color AX5770 1GB 4x4GB 1866Mhz 9-10-9-27-2T 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
Hard DriveOptical DriveCoolingOS
Intel X-25M G2 80GB Lite-On BluRay Drive Arctic Cooling Freezer 13 Pro Windows 7 Ultimate 
MonitorKeyboardPowerCase
Dell U2212HM Deck Legend Frost Tactile Silverstone Strider Plus 750w Custom Acrylic Test Bed 
MouseMouse PadAudioAudio
Logitech G500 Cooler Master Storm Tactics FPS Beyer Dynamics DT-990 600ohm Samson MediaOne 3A 
AudioAudioOtherOther
FiiO E09k QOGIR FiiO E17 ALPEN Microsoft Lifecam Studio Blue Yeti Pro Microphone 
CPUMotherboardGraphicsRAM
AMD A10-A5800K ASRock FM2A85X-ITX Radeon HD7770 1GB 2x8GB 1866mhz C9 
Hard DriveHard DriveOptical DriveCooling
SanDisk Ultra Plus 128GB 2TB 5400 RPM  24x DVD Drive Noctua L9A 
OSMonitorKeyboardPower
Windows 7 Home Premium 32" IPS TV Logitech K400 Seasonic G360 
CaseMouseAudio
Cooler Master Elite 120 Advanced Logitech K400 Trackpad Custom 2.1 Home Theater Setup 
  hide details  
Reply
Test Bed
(24 items)
 
TTTbox
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K  Biostar TZ774XE Power Color AX5770 1GB 4x4GB 1866Mhz 9-10-9-27-2T 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
Hard DriveOptical DriveCoolingOS
Intel X-25M G2 80GB Lite-On BluRay Drive Arctic Cooling Freezer 13 Pro Windows 7 Ultimate 
MonitorKeyboardPowerCase
Dell U2212HM Deck Legend Frost Tactile Silverstone Strider Plus 750w Custom Acrylic Test Bed 
MouseMouse PadAudioAudio
Logitech G500 Cooler Master Storm Tactics FPS Beyer Dynamics DT-990 600ohm Samson MediaOne 3A 
AudioAudioOtherOther
FiiO E09k QOGIR FiiO E17 ALPEN Microsoft Lifecam Studio Blue Yeti Pro Microphone 
CPUMotherboardGraphicsRAM
AMD A10-A5800K ASRock FM2A85X-ITX Radeon HD7770 1GB 2x8GB 1866mhz C9 
Hard DriveHard DriveOptical DriveCooling
SanDisk Ultra Plus 128GB 2TB 5400 RPM  24x DVD Drive Noctua L9A 
OSMonitorKeyboardPower
Windows 7 Home Premium 32" IPS TV Logitech K400 Seasonic G360 
CaseMouseAudio
Cooler Master Elite 120 Advanced Logitech K400 Trackpad Custom 2.1 Home Theater Setup 
  hide details  
Reply
post #23 of 35
Thread Starter 
I know that RAID doesn't back up data, but I know that it gives you somewhat similiar securities, in not so many words.

Either way, it would appear that RAID 0 is my only option for what I'm looking for. I don't have 4 disks to cook up a RAID 5 or 6, either. I guess RAID 1+0 could be an option because I only need two disks... but if I understand correctly, from what I've read via Wikipedia, you'll still lose a drive to the "backup" drive?
post #24 of 35
You'll need windows 7 and you'll need to set it up as a GPT disk. MBR can't address over 2TB.
More Cores
(20 items)
 
 
SFF: HADRON
(10 items)
 
CPUMotherboardGraphicsGraphics
i7 3930K @ 4.8Ghz offset ASrock X79 Extreme6/GB EVGA GTX680 FTW with EK waterblock EVGA GTX650 for PhysX 
RAMHard DriveHard DriveHard Drive
G-Skill 4x4GB DDR3 1866 8-9-9-24@1.5V Samsung 840 Pro 128GB Agility 3 240GB x2 RAID 0 WD 500GB X2 RAID 0 
CoolingCoolingCoolingCooling
XSPC Raystorm XSPC Dual Bay reservoir with Alphacool variable... Alphacool NexXxoS UT60 Full Copper Triple 120mm... EK GTX680 FTW waterblock 
OSMonitorPowerCase
Windows 7 64 bit Ultimate HP tSS-25X11LED 25" 1080p PC Power&Cooling Silentpower 910W Xigmatek Elysium 
MouseMouse PadAudioAudio
Razer Deathadder 3500 Rocketfish Creative Sound Core3D Logitech Z5300 
CPUMotherboardGraphicsRAM
960T unlocked to X6 ASUS M4A79XTD Evo Sapphire HD6870 1GB 2x2GB Ripjaws 7-8-7-24 F3-12800CL7D-4GBRM  
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB WD 320GB HDD Lite-On DVD-RW Corsair H100 
OSPowerCase
Win 7 x64 Ultimate OCZ Stealthstream 600W HAF XB 
CPUMotherboardGraphicsRAM
3570K P8Z77-I MSI 560 Ti TF2 Samsung 20nm 
Hard DriveCoolingOSMonitor
Crucial M500 Kuhler 620 Windows 7 x64 52" Samsung LED TV 
CaseAudio
EVGA Hadron Air Denon receiver/ Polk audio 
  hide details  
Reply
More Cores
(20 items)
 
 
SFF: HADRON
(10 items)
 
CPUMotherboardGraphicsGraphics
i7 3930K @ 4.8Ghz offset ASrock X79 Extreme6/GB EVGA GTX680 FTW with EK waterblock EVGA GTX650 for PhysX 
RAMHard DriveHard DriveHard Drive
G-Skill 4x4GB DDR3 1866 8-9-9-24@1.5V Samsung 840 Pro 128GB Agility 3 240GB x2 RAID 0 WD 500GB X2 RAID 0 
CoolingCoolingCoolingCooling
XSPC Raystorm XSPC Dual Bay reservoir with Alphacool variable... Alphacool NexXxoS UT60 Full Copper Triple 120mm... EK GTX680 FTW waterblock 
OSMonitorPowerCase
Windows 7 64 bit Ultimate HP tSS-25X11LED 25" 1080p PC Power&Cooling Silentpower 910W Xigmatek Elysium 
MouseMouse PadAudioAudio
Razer Deathadder 3500 Rocketfish Creative Sound Core3D Logitech Z5300 
CPUMotherboardGraphicsRAM
960T unlocked to X6 ASUS M4A79XTD Evo Sapphire HD6870 1GB 2x2GB Ripjaws 7-8-7-24 F3-12800CL7D-4GBRM  
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB WD 320GB HDD Lite-On DVD-RW Corsair H100 
OSPowerCase
Win 7 x64 Ultimate OCZ Stealthstream 600W HAF XB 
CPUMotherboardGraphicsRAM
3570K P8Z77-I MSI 560 Ti TF2 Samsung 20nm 
Hard DriveCoolingOSMonitor
Crucial M500 Kuhler 620 Windows 7 x64 52" Samsung LED TV 
CaseAudio
EVGA Hadron Air Denon receiver/ Polk audio 
  hide details  
Reply
post #25 of 35
Thread Starter 
Done and done already, thanks.
post #26 of 35
Motherboard raid? eh.. I would have gone with software raid. I've had nothing but problems running motherboard raids in the past. The controller flaking out seems to be far more common than disk failure.

Raid is definitely not a backup solution. If anything I think typical home raid puts the data at a bigger risk than running the drives separately. This is because raid depends on many components to work together and I think home builds just aren't that reliable. I use raid purely for convenience of concatenated storage and try to keep full external backups.

Just a while back I had a raid5 die on me because two drives shared a molex to dual SATA power cable and the molex came loose My fault for poor build but there are so many variables like this at work.

Luckily I was able to reconstruct the array that time.
post #27 of 35
Thread Starter 
Well you can't just drop info on me like that without explanation!

What's the difference between mobo and software RAID?

As for your RAID 5 dying, is it simply because you unplugged the power to it? Are you saying that if I turned my computer off, removed a drive and then turned it on, everything would be lost? Even though both drives are fine?

And would software RAID be able to prevent that from happening?
post #28 of 35
Software RAID generally has a huge system overhead and is slow. (This is not the case when using Linux's software RAID.)

Motherboard RAID is sometimes called "FakeRAID" because it doesn't use a dedicated card. This isn't true though, as it is as real as a "Hardware RAID" solution which is on a dedicated card.

The other poster is talking out of their bum. The only reason a SB would have the RAID fail out like that is a bad BIOS or inadequate cooling around the Southbridge. Which is really hard to do as they are only 4w chips.
Test Bed
(24 items)
 
TTTbox
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K  Biostar TZ774XE Power Color AX5770 1GB 4x4GB 1866Mhz 9-10-9-27-2T 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
Hard DriveOptical DriveCoolingOS
Intel X-25M G2 80GB Lite-On BluRay Drive Arctic Cooling Freezer 13 Pro Windows 7 Ultimate 
MonitorKeyboardPowerCase
Dell U2212HM Deck Legend Frost Tactile Silverstone Strider Plus 750w Custom Acrylic Test Bed 
MouseMouse PadAudioAudio
Logitech G500 Cooler Master Storm Tactics FPS Beyer Dynamics DT-990 600ohm Samson MediaOne 3A 
AudioAudioOtherOther
FiiO E09k QOGIR FiiO E17 ALPEN Microsoft Lifecam Studio Blue Yeti Pro Microphone 
CPUMotherboardGraphicsRAM
AMD A10-A5800K ASRock FM2A85X-ITX Radeon HD7770 1GB 2x8GB 1866mhz C9 
Hard DriveHard DriveOptical DriveCooling
SanDisk Ultra Plus 128GB 2TB 5400 RPM  24x DVD Drive Noctua L9A 
OSMonitorKeyboardPower
Windows 7 Home Premium 32" IPS TV Logitech K400 Seasonic G360 
CaseMouseAudio
Cooler Master Elite 120 Advanced Logitech K400 Trackpad Custom 2.1 Home Theater Setup 
  hide details  
Reply
Test Bed
(24 items)
 
TTTbox
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K  Biostar TZ774XE Power Color AX5770 1GB 4x4GB 1866Mhz 9-10-9-27-2T 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
Hard DriveOptical DriveCoolingOS
Intel X-25M G2 80GB Lite-On BluRay Drive Arctic Cooling Freezer 13 Pro Windows 7 Ultimate 
MonitorKeyboardPowerCase
Dell U2212HM Deck Legend Frost Tactile Silverstone Strider Plus 750w Custom Acrylic Test Bed 
MouseMouse PadAudioAudio
Logitech G500 Cooler Master Storm Tactics FPS Beyer Dynamics DT-990 600ohm Samson MediaOne 3A 
AudioAudioOtherOther
FiiO E09k QOGIR FiiO E17 ALPEN Microsoft Lifecam Studio Blue Yeti Pro Microphone 
CPUMotherboardGraphicsRAM
AMD A10-A5800K ASRock FM2A85X-ITX Radeon HD7770 1GB 2x8GB 1866mhz C9 
Hard DriveHard DriveOptical DriveCooling
SanDisk Ultra Plus 128GB 2TB 5400 RPM  24x DVD Drive Noctua L9A 
OSMonitorKeyboardPower
Windows 7 Home Premium 32" IPS TV Logitech K400 Seasonic G360 
CaseMouseAudio
Cooler Master Elite 120 Advanced Logitech K400 Trackpad Custom 2.1 Home Theater Setup 
  hide details  
Reply
post #29 of 35
Quote:
I guess RAID 1+0 could be an option because I only need two disks
You would be running RAID 1 in this situation.
RAID 10 requires 4 disks.

Quote:
What's the difference between mobo and software RAID?
Not much. Both use your CPU for parity caluclations. There is generally more support for software imeplmentations on the box than there is for a specific "fake RAID" controller, though. Example with my 5x 750 GB RAID 5 array in the closet. If the CPU/MB/RAM die, I can transplant all of the drives into any generic Linux box with mdadm, and have all of my data available and accessible through the use of ~3 shell commands.

Quote:
Are you saying that if I turned my computer off, removed a drive and then turned it on
If you had RAID5, your array would show up as 'degraded' and business would go on as normal. Would be advised to replace the disk ASAP.
If you had RAID0, your system would refuse to boot.

Relating back to the OP, 4 TB of data is a LOT to put at risk in a RAID 0 array.
Waiting on X399
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II B57 @ X4 3.9 Gigabyte 790FXTA-UD5 Sapphire Radeon 290 8 GB G.Skill 2133 
Hard DriveCoolingOSKeyboard
250 GB 840 EVO Noctua NH-D14 Windows 10 Logitech K350 
PowerCaseMouseMouse Pad
Seasonic x750 Corsair 600T Logitech G100s Razer Goliathus Speed 
Audio
Plantronics Gamecom 788 
  hide details  
Reply
Waiting on X399
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II B57 @ X4 3.9 Gigabyte 790FXTA-UD5 Sapphire Radeon 290 8 GB G.Skill 2133 
Hard DriveCoolingOSKeyboard
250 GB 840 EVO Noctua NH-D14 Windows 10 Logitech K350 
PowerCaseMouseMouse Pad
Seasonic x750 Corsair 600T Logitech G100s Razer Goliathus Speed 
Audio
Plantronics Gamecom 788 
  hide details  
Reply
post #30 of 35
Thread Starter 
@Tator Tot: Very succinctly put, I giggled a little. Out loud, too.

@beers: So my system would refuse to boot until I solved the problem? Which would be to properly hook up my hard drive again? Is it kind of like a failsafe for my operational stupidity can't harm it?

Yes, 4TB is a lot of risk, but it's ONLY HD movies; WMV-HD files to be specific. If I lose 'em, I lose 'em. Life goes on. It's nothing that I couldn't replicate with a little time and effort. Though your queries do give me the desire to create a running list of what I've got just in case.

Thanks.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: RAID Controllers and Software
Overclock.net › Forums › Components › Hard Drives & Storage › RAID Controllers and Software › Beginner RAID Question