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Questions tagged [raid1]

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191 questions
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i have one problem. I created RAID1 with two discs, then i simulated failure of one of the discs. It was sdb1. I restared the VM with one disc working in RAID array. Then i added new fresh disc to add ...
linuxenjoyer32123's user avatar
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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 ...
Testy Testy's user avatar
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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 ...
Eugen Konkov's user avatar
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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 ...
treuss's user avatar
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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&...
Pro West's user avatar
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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 ...
Oleksa's user avatar
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3 votes
2 answers
230 views

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 ...
Khang Nguyen Phuc's user avatar
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1 answer
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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 (...
酸柠檬猹's user avatar
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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 ...
webard's user avatar
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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 ~...
Miira ben sghaier's user avatar
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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.
WilliWuff's user avatar
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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"...
quixotrykd's user avatar
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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 ...
linux01's user avatar
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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 ...
csiko's user avatar
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2 votes
1 answer
266 views

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 ...
Vince's user avatar
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