Linux/RAID/Partitionierung

Partitionierung

Datenträger des RAIDs identisch partitionieren

Am Anfang und Ende des Datenträgers einige Sektoren frei lassen

fdisk

Bezeichnungen der Datenträger ermitteln

sudo fdisk -l

Datenträger partitionieren

sudo fdisk /dev/sdc
 Welcome to fdisk (util-linux 2.33.1)
 Changes will remain in memory only, until you decide to write them
 Be careful before using the write command
 
 Device does not contain a recognized partition table
 Created a new DOS disklabel with disk identifier 0xdfca4904
 
 Command (m for help)

GPT (GUID-Partition-Table) wird angelegt
 Command (m for help): g
  
 Created a new GPT disklabel (GUID: 748568BC-EC8C-F34A-B822-45C2E267CFFB)
 
Partitionstabelle anlegen
 Command (m for help): n
 
 Partition number (1-128, default 1): 1
 First sector (2048-3907029134, default 2048): 2048
 Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-3907029134, default 3907029134): +1842G
 
 Created a new partition 1 of type Linux filesystem and of size 1,8 TiB

Partition als RAID-Partition markieren
 Command (m for help): t
  
 Selected partition 1
 Partition type (type L to list all types): 29
 
 Changed type of partition Linux filesystem to Linux RAID

Änderungen auf Korrektheit überprüfen
 Command (m for help): p
  
 Disk /dev/sdc: 1,8 TiB, 2000398934016 bytes, 3907029168 sectors
 Disk model: WDC WD20EZRX-00D
 Units: sectors of 1 * 512 = 512 bytes
 Sector size (logical/physical): 512 bytes / 4096 bytes
 I/O size (minimum/optimal): 4096 bytes / 4096 bytes
 Disklabel type: gpt
 Disk identifier: 748568BC-EC8C-F34A-B822-45C2E267CFFB
 
 Device Start End Sectors Size Type
 /dev/sdc1 2048 3862956031 3862953984 1,8T Linux RAID

Änderungen schreiben
 Command (m for help): w
 
 The partition table has been altered
 Calling ioctl() to re-read partition table
 Syncing disks