Jump to content
Search In
  • More options...
Find results that contain...
Find results in...
Erfurt

Raid 5 spare? Help

Recommended Posts

Posted · Original PosterOP

Hey guys, I have a kind of theoretical question to ask you.

 

So I'm planning on making a small home file/media server. And I want to have a raid 5 over three drives, to start with. I want to make it raid 5 with a spare disk. But at the moment I don't have the money to buy another disk (already have three disks that i will be using). I was wondering if it's something I can do rather easily, or if I have to rebuild the raid from scratch. I should mention that I will be using Linux ubuntu for the server OS, and it will be a software raid.

 

Any help would be lovely and very much appreciated :)

 

I should also mention, that I'm not interested in hearing that I shouldn't be using raid 5 with a spare disk. I have already decided, that I will use it :)


My setup: i5 3570K  - Corsair H100i - MSI Z77 GD65 - 256 GB Samsung 840 pro SSD - Corsair AX760i - Gigabyte GTX 670 Windforce 2GB - 4x4 GB Crucial Ballistix Tactical Tracer RAM - Corsair Carbide 500R (modded side window)

Link to post
Share on other sites

Hey guys, I have a kind of theoretical question to ask you.

 

So I'm planning on making a small home file/media server. And I want to have a raid 5 over three drives, to start with. I want to make it raid 5 with a spare disk. But at the moment I don't have the money to buy another disk (already have three disks that i will be using). I was wondering if it's something I can do rather easily, or if I have to rebuild the raid from scratch. I should mention that I will be using Linux ubuntu for the server OS, and it will be a software raid.

 

Any help would be lovely and very much appreciated :)

 

I should also mention, that I'm not interested in hearing that I shouldn't be using raid 5 with a spare disk. I have already decided, that I will use it :)

You are going to want to check the controller. I know some don't support this. Every RAID controller I have used (admittedly they where all enterprise controllers) supported adding new disks to an array, or changing the RAID type (i.e. 5->6). 

 

For the software RAID in linux, I am sure it is possible like a HW controller, you'd just need someone with Linux knowledge to fill you in.

Link to post
Share on other sites

-snip-

 

Yeah, you will have to look at the RAID controller's manual. Some do, some do not. My LSI MegaRAID 9260CV-8i does not. For my RAID card, all hot spares have to be created at the same time with the original array, otherwise you have to rebuild the whole thing.

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


×