mdadm
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Search complete. 37 mentions across 4 episodes found for "mdadm".
Oct 25, 2026
Untitled Linux Show 276: Didn't Have Enough Dice
Oct 25 · 11 Mentions
Top 10%Jeff MassieHOST
You know, I've had it for years.
Jeff MassieHOST
It runs on three 18 terabyte drives in a Linux software RAID 1 mirror using MDADM with plain old EXT4 as the file system.
Jeff MassieHOST
You know, three copies of everything, belt suspenders and a backup pair of suspenders.
Jeff MassieHOST
And, you know, it's worked great.
Jeff MassieHOST
And basically, I just kind of want to walk you through how I did it and how I kind of kept things safe without ever having fewer than two copies of my data.
Jeff MassieHOST
Now, the first thing is probably why bother? Why would I even go through this if my current system's been working for years? Well, MDA-DM is rock solid and I've done stories about it in the past using MDA-DM and how it's actually more stable than a lot of RAID hardware until you get to the enterprise level stuff.
Jeff MassieHOST
But for the consumer level, even semi-pro, MDADM has been around for a very long time and it is very trusted.
Jeff MassieHOST
But there's an issue.
Jeff MassieHOST
You know, I've had it for years.
Jeff MassieHOST
It runs on three 18 terabyte drives in a Linux software RAID 1 mirror using MDADM with plain old EXT4 as the file system.
Jeff MassieHOST
You know, three copies of everything, belt suspenders and a backup pair of suspenders.
Jeff MassieHOST
And, you know, it's worked great.
Jeff MassieHOST
And I've done stories about it in the past using MDA-DM and how it's actually more stable than a lot of RAID hardware until you get to the enterprise level stuff.
Jeff MassieHOST
But for the consumer level, even semi-pro...
Jeff MassieHOST
MDADM has been around for a very long time and it is very trusted.
Jeff MassieHOST
But there's an issue.
Jeff MassieHOST
You know, I've had it for years.
Jeff MassieHOST
It runs on three 18 terabyte drives in a Linux software RAID 1 mirror using MDADM with plain old EXT4 as the file system.
Jeff MassieHOST
You know, three copies of everything, belt suspenders and a backup pair of suspenders.
Jeff MassieHOST
And, you know, it's worked great.
Jeff MassieHOST
With three drives, I could have used RAID Z1 and doubled my speed, but at this point, I just stuck with a three-way mirror.
Jeff MassieHOST
I felt good with what I had, and I said, I'm just keeping it.
Jeff MassieHOST
Now, there's one catch to this, and it's there's no in-place conversion from MDADM to ZFS.
Jeff MassieHOST
You have to copy everything.
Jeff MassieHOST
You know, I've had it for years.
Jeff MassieHOST
It runs on three 18 terabyte drives in a Linux software RAID 1 mirror using MDADM with plain old EXT4 as the file system.
Jeff MassieHOST
You know, three copies of everything, belt suspenders and a backup pair of suspenders.
Jeff MassieHOST
And, you know, it's worked great.
Jeff MassieHOST
And I've done stories about it in the past using MDA-DM and how it's actually more stable than a lot of RAID hardware until you get to the enterprise level stuff.
Jeff MassieHOST
But for the consumer level, even semi-pro...
Jeff MassieHOST
MDADM has been around for a very long time and it is very trusted.
Jeff MassieHOST
But there's an issue.