Devoxx 2024

Hello, there!

I am going to Devoxx 2024, in Antwerpen for the entire week (starting coming Monday, 6th October 2024). It's been quite a while since I went to a conference (two years?) and the last time I went to Devoxx is in 2019 (which was five years ago).

I'll try and write some blogposts on it.

My Current MDADM Setup

Just some notes on my current MDADM setup, so I do not forget.

So my current hard drives are:

# lsscsi
[0:0:0:0]    disk    ATA      Samsung SSD 860  1B6Q  /dev/sda 
[4:0:0:0]    disk    ATA      WDC WD4003FZEX-0 1A01  /dev/sdb 
[5:0:0:0]    disk    ATA      WDC WD5000AAKS-0 3B01  /dev/sdc 
[5:0:1:0]    disk    ATA      ST2000DM001-1CH1 CC29  /dev/sdd 
[10:0:0:0]   disk    WD       Ext HDD 1021     2021  /dev/sde 
[11:0:0:0]   disk    WD       Ext HDD 1021     2021  /dev/sdf 

The first one is my primary and Operating Systems and all that. Seems obvious.

The second one contains a large partition for my /home on sdb1.

Partition sdc1 of the sdc drive is a simple 500Gb partition containing some odds and ends. Not big enough for the RAID, not fast enough for the operating system.

Starting my raid setup I can do with:

# mdadm --assemble /dev/md127 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdb2 mdadm: /dev/md127 has been started with 4 drives.

Just so you know, it's a simple mirror setup, so I am using 4 drives to mirror a 2 TB partition.

And then I simple mount the damn thing with:

# mount /dev/md127 /mnt/raid/

Then I can watch the status with detail:

mdadm --detail /dev/md127