- #Softraid linux how to#
- #Softraid linux install#
- #Softraid linux full#
- #Softraid linux software#
- #Softraid linux iso#
Start an Array, to reassemble (start) an array that was previously created: mdadm -assemble -scanĭdadm will scan for defined arrays and start assembling it.ĥ. Note: This is not the same as "growing" the array!Ĥ. Where /dev/md0 is the array device and /dev/sda is the new disk. Add a disk to an array: sudo mdadm -add /dev/md0 /dev/sda1 Where /dev/md0 is the array device and /dev/sda is the faulty disk.ģ. To remove a disk from an array: sudo mdadm -remove /dev/md0 /dev/sda1 To stop an array, type: sudo mdadm -stop /dev/md0Ģ. Note: You can add, remove disks, or set them as faulty without stopping an array.ġ. You can see that all three disks are present and in sync. Algorithm 2 shows it is a write algorithm pattern, which is "left disk to right disk" writing across the array. These are /dev/sdc1, /dev/sde1 and /dev/sdd1, with a 64k "chunk" size or write size. Md6 is different in that we can see it is a raid 5 array, striped across three disks. The same can be said of md0 only it is smaller (you can see from the blocks parameter) and is made up of /dev/sda1 and /dev/sdb1. You can see that md5 is a raid1 array and made up of disk /dev/sda partition 7, and /dev/sdb partition 7, containing 62685504 blocks, with 2 out of 2 disks available and both in sync. You can also see in the three example meta devices that there are two raid 1 mirrored meta devices. Md6 : active raid5 sdc1 sde1 sdd1ĩ76767872 blocks level 5, 64k chunk, algorithm 2 įrom this information you can see that the available personalities on this machine are "raid1, raid6, raid4, and raid5" which means this machine is set-up to use raid devices configured in a raid1, raid6, raid4 and raid5 configuration. Two useful commands to check the status are: cat /proc/mdstatĮxample output: Personalities :
#Softraid linux full#
Provided the RAID is working fine this can be fixed with: sudo update-initramfs -k all -uįor those that want full control over the RAID configuration, the mdadm CLI provides this. Swap space doesn't come up, error message in dmesg
#Softraid linux install#
In case your next HDD won't boot then simply install Grub to another drive: grub-install /dev/sdb
#Softraid linux software#
#Softraid linux how to#
Read Getting Ubuntu Alternate Install disk and How to do a Ubuntu Alternate Install
#Softraid linux iso#
If you're building a desktop then you need the "Alternate" install ISO for Ubuntu.