RAID 1 vs Mirrored Volume
- Thread starter Mephobia
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Ubrales
Polypheme
- Dec 3, 2009
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Every time you make a RAID1 volume it will erase all data on the drives.
This will explain the various RAID drives - https://en.wikipedia.org/wiki/RAID
My data is on a RAID1 volume with two 1 TB drives.
This will explain the various RAID drives - https://en.wikipedia.org/wiki/RAID
My data is on a RAID1 volume with two 1 TB drives.
drtweak
Illustrious
- Sep 17, 2012
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They are BOTH techinally a RAID 1. Here is the difference though.
A RAID 1 that you would make like though the config or bios on bootup is a hardware RAID (its not always TRUE hardware RAID as there is no dedicated RAID Chip on board. It is all still managed by the CPU). This is all managed on a hardware level.
A Mirrored Volume though Disk Management is a Software RAID 1 and the RAID is managed though windows on a software level.
They both do the same exact job just different ways. Doing it though Disk management has a less change of your data being wiped out. A lot of modern day RAID options allow you to select a Source Drive or Main drive and then add another drive to make the RAID 1. RAID 1 is not always a Drives get wiped to make a RAID 1.
FOR ANY OTHER RAID IT WILL WIPE THE DRIVE. But again for it to not wipe the drive i a RAID 1 depends on the RAID card and options.
A RAID 1 that you would make like though the config or bios on bootup is a hardware RAID (its not always TRUE hardware RAID as there is no dedicated RAID Chip on board. It is all still managed by the CPU). This is all managed on a hardware level.
A Mirrored Volume though Disk Management is a Software RAID 1 and the RAID is managed though windows on a software level.
They both do the same exact job just different ways. Doing it though Disk management has a less change of your data being wiped out. A lot of modern day RAID options allow you to select a Source Drive or Main drive and then add another drive to make the RAID 1. RAID 1 is not always a Drives get wiped to make a RAID 1.
FOR ANY OTHER RAID IT WILL WIPE THE DRIVE. But again for it to not wipe the drive i a RAID 1 depends on the RAID card and options.
drtweak
Illustrious
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Also to answer your other thread
Hi.
Here’s a few questions I’d love to know the answer to if anyone could help me out that'd be great!
#1
Is it only supposed to show up one disk in Disk Management when two drives are in RAID 1 configuration?
If it setup as a Hardware Raid and not a software RAID in Disk Management then yes. If it is a software RAID and setup inside of disk management it will show both drives.
#2
What is the difference between configuring two drives into RAID 1 in startup and making a “New Mirrored Volume” in Disk Management?
Posted above
#3
Is one method better than the other if it's the same?
Hardware is usually better but honestly only if you are running a RAID 5/6 and using a dedicated RAID card and not an onboard RAID card as they have things like their own CPU, RAM, and a Battery backup. RAID 5/6 has a LOT of overhead and can be very slow if not setup properly. RAID 1/0 have little to no overhead. It is simply duplicating or splitting the data. Very easy. Not doing all these Parity bit caculations and stuff.
#4
Why do 2 drives show in Disk Management when they are listed as “Mirrored volume” instead of 1?
Again if it is a software RAID it will show two disk.
#5
Am I supposed to make a “New Simple Volume” with the one disk that shows up in Disk management after I created a RAID 1 Volume (not mirrored volume in Disk Management)?
NO NO NO NO NO. Again my post above. You could risk wiping everything if not done right. If you really want a hardware RAID 1 i would use something like Macrium Reflect which is free to download and then clone the drive to another drive (Make sure it is an extra blank drive that can fit all your data) and have a backup.
Otherwise doing a software RAID is fine.
Hi.
Here’s a few questions I’d love to know the answer to if anyone could help me out that'd be great!
#1
Is it only supposed to show up one disk in Disk Management when two drives are in RAID 1 configuration?
If it setup as a Hardware Raid and not a software RAID in Disk Management then yes. If it is a software RAID and setup inside of disk management it will show both drives.
#2
What is the difference between configuring two drives into RAID 1 in startup and making a “New Mirrored Volume” in Disk Management?
Posted above
#3
Is one method better than the other if it's the same?
Hardware is usually better but honestly only if you are running a RAID 5/6 and using a dedicated RAID card and not an onboard RAID card as they have things like their own CPU, RAM, and a Battery backup. RAID 5/6 has a LOT of overhead and can be very slow if not setup properly. RAID 1/0 have little to no overhead. It is simply duplicating or splitting the data. Very easy. Not doing all these Parity bit caculations and stuff.
#4
Why do 2 drives show in Disk Management when they are listed as “Mirrored volume” instead of 1?
Again if it is a software RAID it will show two disk.
#5
Am I supposed to make a “New Simple Volume” with the one disk that shows up in Disk management after I created a RAID 1 Volume (not mirrored volume in Disk Management)?
NO NO NO NO NO. Again my post above. You could risk wiping everything if not done right. If you really want a hardware RAID 1 i would use something like Macrium Reflect which is free to download and then clone the drive to another drive (Make sure it is an extra blank drive that can fit all your data) and have a backup.
Otherwise doing a software RAID is fine.
Thank you very very much for your answers! Very helpfull.
There's one thing about Q#5 I'm still wondering about tho. In this scenario I was thinking if the drives were already cleared/wiped/new. I had previously moved all my data to an external HDD and wiped the HDDs before I started this process so there's no data to lose. So in the hardware method, after i configured the drives to RAID 1 in the place at startup/bios or whatever it's called, the disk is listed in Disk Management as unallocated. At this point should I create New Simple Volume or still go with the Macrium Reflect software? Every other option is greyed out in Disk Management. As far as I understood the Macrium Reflect software was mainly to make sure that you don't lose any data?
drtweak
Illustrious
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yea that is just to clone/image your drive. If there is nothing on it then you have no worries of anything.
now are you going to do a software RAID or a hardware RAID? and also what PC (If OEM) or motherboard do you have to help you futher if need be.
Also if you do a hardware RAID what it says in disk management is irrevalant. It won't be listed as a hard drive but as a Intel Volume 0 or something similar to that and you actaully won't see the drives at all as you will only see this new RAID 1 Volume as they would call it.
If you do a Software RAID then you will still see both but have to convert them to Dynamic Disk first.
now are you going to do a software RAID or a hardware RAID? and also what PC (If OEM) or motherboard do you have to help you futher if need be.
Also if you do a hardware RAID what it says in disk management is irrevalant. It won't be listed as a hard drive but as a Intel Volume 0 or something similar to that and you actaully won't see the drives at all as you will only see this new RAID 1 Volume as they would call it.
If you do a Software RAID then you will still see both but have to convert them to Dynamic Disk first.
Thank you again for the reply!
I'm using Asus Rampage IV Extreme.
The plan or idea was to do a hardware RAID this time. This is what it looked like in Disk Management after I configured two of my drives into RAID 1 the hardware way: http://i.imgur.com/KGD5Ps5.png
Then I went ahead and made a "New Simple Volume" when it was listed as unallocated. Was that the right thing to do or should I have done something different at that point or did that not matter since you said what it says in disk management is irrelevant ?
Now it looks like this after making 2 x RAID 1 configurations: http://i.imgur.com/5X3S1Mc.png
Is that how it's supposed to be? Any thoughts on whether or not I should've done anything differently or additionally? I didn't run chdsk yet, I seem to recall a popup saying I should run that.
drtweak
Illustrious
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The hardware RAID is setup on bootup. You have to go into the BIOS, set SATA type to RAID (have to be careful here as windows boot can be affected if the proper changes haven't been made) and then the RAID 1 is setup there.
It looks almost as if they were ready to be set for a Software RAID 1 (they were set to Dynamic) and then made a software RAID in Disk Management. Hardware RAID is ALWAYS done in either the BIOS or RAID Card BIOS and Never in windows. if it was made in windows it is a software RAID which honestly probably isn't a big deal
It looks almost as if they were ready to be set for a Software RAID 1 (they were set to Dynamic) and then made a software RAID in Disk Management. Hardware RAID is ALWAYS done in either the BIOS or RAID Card BIOS and Never in windows. if it was made in windows it is a software RAID which honestly probably isn't a big deal
Yes.
My point is after I did what you describe here I went into Disk Management and the drives I had configured to RAID 1 in bootup were listed in Disk Management as "unallocated". At that point, what would be the next step? Should the RAID 1 unallocated disk be made into "New Simple Volume" in Disk Management or be left untouched as unallocated or something else?
Thank you very much for your help! <3TRENDING THREADS
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