Questions tagged [raid1]
The raid1 tag has no summary.
191 questions
0
votes
0
answers
39
views
Total newbie stuff-up with LVM and RAID1
Many years ago, I created a RAID1 LVM data disk. During a re-installation, I deleted the volume group under cockatoo--vg-data associated with sdb1 and sdc1 and just have the partitions left.
sudo ...
0
votes
2
answers
69
views
Is this possible to create raid1 from 8TB and 4TB+4TB disks, eg. stripe 4+4 + mirror 8?
I have one 8TB and two 4TB disks. I am curious if I am able to create 8TB raid from 8+4+4 disks?
I tried this sudo mkfs.btrfs -f -m raid1 -d raid1 /dev/sdc1 /dev/sdd1 /dev/cdb1 but this creates only ...
- 437
0
votes
1
answer
28
views
Remove a disk from a Raid1 array and use it as cold backup?
My RAID1 array is currently running with 3 disks (2x6TB and 1x3TB). I want to remove the smaller disk and wonder if it makes sense to put it in the safe as cold backup. The idea is to be able to mount ...
- 293
1
vote
0
answers
63
views
No space left on device but only 50% space and 1% inodes used
This is on a Iomega IX200 NAS which had been expanded to 4TB disks from the original 2TB.
It all looks good.
But when I try to save data to a new file I get the "No space left on device error&...
- 111
0
votes
0
answers
36
views
Cannot umount systemd mounted luks container in raid
I have mounted raid1 luks non-root partition which is automated through created mount unit. Recently I've discovered that the FS is corrupted and decided to fsck it remotely without rebooting the ...
- 151
3
votes
2
answers
156
views
RAID array reverts to the old disk after reboot
I have replaced my RAID array from RAID 1 with 2 x 4TB disks to 2 x 10TB disks using mdadm.
The process can be summarized as follows: add the 2 new disks to the RAID array, wait for sync, remove the 2 ...
1
vote
1
answer
155
views
mdadm RAID1: Unable to replace(--add) failed drive
I have a RAID1 array of two hard disks which recently lost one drive, but I can't seem to simply replace the broken one.
mdadm --detail has reported that the first drive slot sda has been removed (...
- 33
1
vote
0
answers
16
views
Not sure if lsblk showing correct partitions after restoring RAID1
One of my disk (nvme0n1) fails, so it was replaced. Now lsblk shows
nvme0n1 259:0 0 476.9G 0 disk
├─nvme0n1p1 259:5 0 511M 0 part
├─nvme0n1p2 259:6 0 475.9G 0 part
│ └─md2 9:2 ...
- 11
1
vote
0
answers
178
views
How can I remove raid from my system? [duplicate]
I want to remove raid from my system as I am low on storage and I want to recover the second disk.
How can I recover the second disk, I tried but to no avail, here is my current state :
root@miirabox ~...
0
votes
0
answers
98
views
Ubuntu Server 22.04 Replace Failed SSD in mdadm RAID1 Boot Disk
I have an Ubuntu 22.04 server that has its boot disk on a mdadm RAID1 array consisting of two 240 GB SSDs (/dev/sda & /dev/sdb). This mdadm array was setup using curtin during the initial install. ...
1
vote
2
answers
72
views
Converting sw md device from raid0 to raid1 with only one disk online
Is it possible to convert an existing raid0 md device with only one disk to a raid1 md device with one disk in order to add a second mirror disk later?
It should be possible online.
- 11
4
votes
1
answer
546
views
Raid 0+1 Failure Cases VS. Raid 1+0
I have heard that RAID 1+0 is more fault-reliant than RAID 0+1, because a secondary drive failure is more likely to cause data loss in RAID 0+1 than RAID 1+0.
In the above image, if "Disk 1"...
- 359
1
vote
1
answer
115
views
what are the steps to run Grub Hook Script in Debian 12.5
I have installed Software RAID 1 in Debian 12.5. I want if 1st HDD fails the automatically my system should be able to boot from 2nd HDD and visa versa.
What steps I should take for the same?
My ...
- 11
0
votes
0
answers
99
views
Recover data from a raid 1 disk
i would like to recover some data from a disk which was part of a MD RAID 1 Array in an old fileserver.
Drive 1 had a HW issue and it seems that drive 2 stuck in a Rebuilding State.
My idea was to get ...
- 1
2
votes
1
answer
215
views
Accidentally used fdisk on mdadm RAID1 array, can I recover my data?
I installed a new disk today and was prepping it, before realizing that I'd done my "prep" work on an existing RAID1 array!! I'd LOVE to be able to recovered if possible.
My array was ...
- 41