How to stop using raid one and split the drives and keep the information on one ?

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RushNReady

RushNReady

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Dec 30, 2013
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Hi there i'm wanting to stop using my main hdd set up in raid one as the main hdd for my pc i just want to leave one tb hdd for programs and work and so on, at the moment its in raid 1 with another i would like to stop it and use one for photos in raid one with another. I just got programmes on it so dont want to copy all to new hdd and wipe as will have to install everything again, am i right in thinking thats the only way to do it anyway ? thanks ps i may just add i have a 250g ssd for my system and some programs its just applications on my hdd raid 1
 
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geofelt
The value of raid-1 and it's variants like raid-5 is that you can recover from a drive failure quickly. It is for servers that can not tolerate any interruption.
Modern hard drives have a advertised mean time to failure on the order of 500,000+ hours. That is something like 50 years. SSD's are similar.
With raid-1 you are protecting yourself from specifically a hard drive failure. Not from other failures such as viruses, operator error,
malware,raid controller failure fire, theft, etc.
For that, you need external backup. If you have external backup, and can tolerate some recovery time, you do not need raid-1
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geofelt

geofelt

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Oct 9, 2006
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I could be wrong, but since raid-1 is just mirroring, I think you could just remove one drive and reformat it.

You could disconnect one drive and change the bios from raid 1 to ahci and see if it boots.

I have not tried this, and would want confirmation of the safety of the process.
 
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boosted1g

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Jun 12, 2013
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Raid1 is just a duplicate, in most cases you could just take a drive out and it would work just fine.
If you go and delete the raid array from your setup that will take care of the issue.

Then you can format one of the drives and then use it for storage.

If this was any striped raid it would be a completely different beast, but raid 1 is very straight forward since it is just a mirror.
 
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RushNReady

RushNReady

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Dec 30, 2013
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so i can just remove one , turn off the raid , then clear one , then what happens when i want to add another one and start raid again ?
 
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geofelt

geofelt

Titan
Oct 9, 2006
54,268
4,130
174,240
The value of raid-1 and it's variants like raid-5 is that you can recover from a drive failure quickly. It is for servers that can not tolerate any interruption.
Modern hard drives have a advertised mean time to failure on the order of 500,000+ hours. That is something like 50 years. SSD's are similar.
With raid-1 you are protecting yourself from specifically a hard drive failure. Not from other failures such as viruses, operator error,
malware,raid controller failure fire, theft, etc.
For that, you need external backup. If you have external backup, and can tolerate some recovery time, you do not need raid-1
 
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