Introduction. To make mdadm find your array edit /etc/mdadm.conf and correct the num-devices information of your Array. Arrays created in any other linux distro should be recognized inmmediatly by the server. Q#2: What software should I use. It has less problems running from a USB. 2020-05-26: This guide is now updated to reflect some bug fixes and changes in mdadm and Samba. If you plan to store '/boot' on this device please ensure that your boot-loader understands md/v1.x metadata, or use --metadata=0.90 Note that the array is actually started by the mdadm-raid service or (either via mdadm -A -s or the mdrun commands). You will need to apt-get install mdadm to have this tool available. Atleast i could use the raspi for other things too that way. How to create a Software RAID 5 on Linux. Die Paritätsinformationen sind das Ergebnis einer XOR-Verknüpfung und erlauben die Rekonstruktion eines verlorenen Datenblocks. RAID 5 nutzt das vom RAID-Level 0 bekannte Striping und verteilt die Daten in Blöcken auf den verschiedenen Platten. Machen wir aber noch zur Sicherheit zum Schluss. At this point, choose the Manual option: Delete all partitions on both drives you will be using for RAID1: Select a device and choose to Make Boot Device. Install Ubuntu with software RAID (mdadm) For the installation, I’m using the Live server installer for Ubuntu Server 18.04.3. RAID 6 Requires 4 or more physical drives, and provides the benefits of RAID 5 but with security against two drive failures. I would use the mdadm software which is typically included with most Linux distros. Example Query the RAID array. if it does not work i will use mdadm for the raid and samba for sharing or something like that. Administrators have great flexibility in coordinating their individual storage devices and creating logical storage devices that have greater performance or redundancy characteristics. The mdadm utility can be used to create and manage storage arrays using Linux’s software RAID capabilities. Die Meldung mdadm: /etc/mdadm/mdadm.conf defines no arrays. Zuerst wieder die Partitionstype von /dev/sda2 wie vorher ändern. Zusätzlich errechnet RAID 5 aus den Nutzdaten Paritätsinformationen, die ebenfalls verteilt abgelegt werden. In most cases you can skip to the filesystem array and proceed to mount to integrate the filesystem into the database. The array's capacity in RAID 5. It’s an intermediate tutorial and shows you how to create a Linux RAID array which is a good skill to have. I use a raspi and i dont care much about the speed.